# Roméo Apps · English > All applications · Guides Canonical: https://romeoapps.app/en/ Language: en ## Roméo - [Roméo Gambino](https://romeoapps.app/en/romeo/) - [Bluberry Club](https://romeoapps.app/en/labo/): Bluberry Club is Roméo Gambino’s free community on Skool: Business & AI, Body & Longevity, Mind & Focus. We test, we measure, we compound what works. ## Apps - [Dual N-Back](https://romeoapps.app/en/dual-n-back/): A position. A sound. A match to remember. Practise the dual n-back exercise on your iPhone and follow your accuracy as the challenge changes. - [PuffOff](https://romeoapps.app/en/puffoff/): Make room for life beyond the vape. Keep your reasons close, record cravings and see the money you could save, one day at a time. - [NailSafe](https://romeoapps.app/en/nailsafe/): Notice the gesture. Give your hands another option. NailSafe brings desk reminders, craving support and a photo journal into your daily routine. - [LarpGPT](https://romeoapps.app/en/larpgpt/): A clearer starting point for your next image. Explore photo prompts, choose a scene and copy the text into the image generator you already use. - [Surv](https://romeoapps.app/en/surv/): Keep your preparation within reach, even without a connection. Surv brings reference guides, kit lists and field tools together on your iPhone. - [VocalMaxx](https://romeoapps.app/en/vocalmaxx/): Hear your voice. Understand your starting point. Explore pitch measurements and guided practice, with your own recordings as the reference. - [Numvolt](https://romeoapps.app/en/numvolt/): Open, calculate, understand, repeat. Numvolt turns arithmetic practice into short sessions on your iPhone: a calm mode, timed sprints, a duel on one phone and a ladder from your city to the world. - [Tacet](https://romeoapps.app/en/tacet/): Find the exact pitch of your tinnitus, then let Tacet build a sound around it — to cover it during the day, and to keep you company at night, when silence makes it loudest. A daily journal, exportable as a PDF for an appointment. Everything is generated on your iPhone: no files, no account, no server. - [Vitalia](https://romeoapps.app/en/vitalia/): Strength for your belly, your arms, your bones and your energy — through perimenopause, menopause and after. No equipment, no account, no jargon. A chair is all you need, and the text is big enough to read from across the room. - [DuoTalk](https://romeoapps.app/en/duotalk/): Choose two languages, hold to speak or type a phrase, and keep both sides of the exchange in view. DuoTalk is a conversation translator in development for iPhone, designed for iPhone Duo. ## Guides - [How to play dual n-back: a clear first session](https://romeoapps.app/en/dual-n-back/how-to-play-dual-n-back/): Understand position matches, sound matches and the meaning of N before your first dual n-back session. - [Reaction time and the Stroop test: what these tasks actually measure](https://romeoapps.app/en/dual-n-back/reaction-time-and-stroop/): How a reaction-time task differs from a Stroop task, what each one loads, why your scores swing so much, and how to compare results without fooling yourself. - [How to build a quit-vaping plan you will actually use](https://romeoapps.app/en/puffoff/quit-vaping-plan/): What belongs in a written quit plan, why if-then plans outperform intentions, how to choose a date, prepare your hardest situations and decide in advance what happens after a slip. - [Keeping a vaping craving journal: what to record and how to read it](https://romeoapps.app/en/puffoff/vaping-craving-journal/): Why recording cravings changes what you can do about them, the five fields worth keeping, when to write them down, and how to turn a week of notes into a plan. - [How to track nail biting without chasing a streak](https://romeoapps.app/en/nailsafe/nail-biting-tracker/): What to record and why, how a streak counter can work against you, using desk reminders deliberately, and how to read a week of entries into a plan. - [Nail progress photos: how to take pictures you can actually compare](https://romeoapps.app/en/nailsafe/nail-progress-photos/): Why photographs beat memory for a slow-changing habit, how fast nails really grow, the setup that makes two pictures comparable, and why no date should be promised. - [How to structure an AI photo prompt from scratch](https://romeoapps.app/en/larpgpt/write-ai-photo-prompts/): A repeatable order for writing image prompts, what to put in each part, the common mistakes that flatten a result, and how to iterate so that each attempt teaches you something. - [Six worked photo prompt examples, and why each line is there](https://romeoapps.app/en/larpgpt/photo-prompt-examples/): Complete prompts for an architectural interior, a city moment, an object, a landscape, a food shot and a workspace, each broken down sentence by sentence so you can adapt them. - [Prepare your phone to be useful when the network is not there](https://romeoapps.app/en/surv/offline-emergency-preparation/): What survives a network outage, why text beats calls when everyone is dialling, how to keep documents readable offline, and how to make a phone last when there is nothing to charge it with. - [An emergency kit inventory you will actually maintain](https://romeoapps.app/en/surv/emergency-kit-inventory/): Why kits fail at maintenance rather than at assembly, how to build a list by walking through the box, what to record for each item, and how to run an annual review that takes under an hour. - [How to measure and compare your voice pitch recordings](https://romeoapps.app/en/vocalmaxx/measure-voice-pitch/): What hertz actually describes, why a single reading means little, how to keep two recordings comparable, and how to read a range without chasing a target number. - [Build a voice practice routine around comfort, not targets](https://romeoapps.app/en/vocalmaxx/comfortable-voice-practice/): How to organise vocal practice so it stays short, comparable and safe: choosing one goal, listening before repeating, keeping a record you will actually maintain, and knowing exactly when to stop. - [How mental arithmetic works in your head, and why some methods are easier](https://romeoapps.app/en/numvolt/mental-math-methods/): Retrieval versus computation, where working memory runs out, why carrying is the expensive part, why anxiety costs accuracy, and what all of that means for how you practise. - [A daily mental math routine that actually sticks](https://romeoapps.app/en/numvolt/daily-mental-math-practice/): How long a session should be, why spacing and mixed problems beat long blocks, why being tested beats reviewing, and how to measure progress without letting the timer run the session. - [How long and how often to train dual n-back: what the studies actually did](https://romeoapps.app/en/dual-n-back/dual-n-back-training-schedule/): Session lengths and frequencies used in dual n-back research, what the evidence shows about transfer, and how to set realistic expectations. - [What is working memory? A plain-language explanation](https://romeoapps.app/en/dual-n-back/what-is-working-memory/): Where the idea of working memory comes from, how researchers measure it, why its capacity is limited, and what an n-back task actually asks of it. - [Habit reversal training: how the method works and what it is for](https://romeoapps.app/en/nailsafe/habit-reversal-training/): The four components of habit reversal training, why awareness comes first, what makes a competing response work, how the method was simplified over time, and what the evidence supports. - [How to get through a vape craving, step by step](https://romeoapps.app/en/puffoff/handle-vape-cravings/): What a craving is, why it passes on its own, the responses public health services recommend, how to prepare for your own triggers, and what to do after a slip. - [A home emergency kit: the Ready.gov list, explained](https://romeoapps.app/en/surv/72-hour-emergency-kit/): What the United States government actually recommends storing, how much water and food, how to treat suspicious water, what to do when the power goes out, and how to keep the kit current. - [Warming up your voice safely: what a warm-up is for](https://romeoapps.app/en/vocalmaxx/voice-warm-up-basics/): Why gradual preparation matters before speaking or singing, the everyday habits that protect a voice, the signs that mean stop, and when hoarseness becomes a reason to see a doctor. - [The anatomy of a photo-realistic image prompt](https://romeoapps.app/en/larpgpt/anatomy-of-a-photo-prompt/): What each part of a prompt does inside an image generator, why one sentence per decision works better than a wall of adjectives, and how to adapt a prompt without breaking the thing that made it work. - [Does dual n-back training work? What the evidence actually says](https://romeoapps.app/en/dual-n-back/does-dual-n-back-work/): An honest walk through the research on dual n-back: what improves, what does not, why the meta-analyses disagree, and how to train without fooling yourself. - [N-back levels explained: N=1, N=2, N=3 and beyond](https://romeoapps.app/en/dual-n-back/n-back-levels-explained/): Understand what changes at each n-back level, compare position and sound correctly, and choose a difficulty using accuracy rather than an arbitrary target. - [Ten dual n-back mistakes that quietly stall your progress](https://romeoapps.app/en/dual-n-back/dual-n-back-mistakes/): The habits that make dual n-back scores look better than they are, from guessing and level-chasing to training tired, and what to do instead. - [Dual n-back scoring: formulas, examples and calculator](https://romeoapps.app/en/dual-n-back/dual-n-back-scoring/): Understand hits, misses and false alarms in dual n-back. Compare scoring formulas with a worked example and an interactive calculator. - [Brain-training exercises compared: what each one actually measures](https://romeoapps.app/en/dual-n-back/brain-training-exercises-compared/): Dual n-back, digit span, complex span, Stroop, reaction time and commercial brain-training suites, what each demands, and what the evidence supports for each. - [Nicotine withdrawal after vaping: what the first weeks usually look like](https://romeoapps.app/en/puffoff/nicotine-withdrawal-timeline/): A plain description of nicotine withdrawal after stopping vaping: why it happens, the usual shape of the first days and weeks, symptoms people do not expect, and when to ask for help. - [Ways to quit vaping, compared honestly](https://romeoapps.app/en/puffoff/ways-to-quit-vaping-compared/): Cold turkey, tapering, nicotine replacement, medication, behavioural support and self-monitoring: what each approach asks of you, and how to choose a first attempt. - [Why people bite their nails, and what the habit is really doing](https://romeoapps.app/en/nailsafe/why-people-bite-their-nails/): Nail biting as a body-focused repetitive behaviour: what triggers it, why it feels useful, why it is so hard to notice, its physical consequences, and when it is worth seeing a professional. - [How to stop biting your nails: the methods with evidence behind them](https://romeoapps.app/en/nailsafe/stop-biting-nails-methods/): A step-by-step account of habit reversal training for nail biting, what a competing response is, what to change in your environment, and what to do after a slip. - [Mental math techniques worth learning, and how to practise them](https://romeoapps.app/en/numvolt/mental-math-techniques/): Left-to-right calculation, compensation, doubling and halving, shortcuts for 5, 9, 11 and 25, squares, estimation and division by chunking, with a practice method that actually sticks. - [Single vs dual n-back: what changes and where to start](https://romeoapps.app/en/dual-n-back/single-vs-dual-n-back/): Compare single and dual n-back with a worked 2-back example. Understand streams, difficulty and what your results can actually tell you. - [Track dual n-back progress: a practical session log](https://romeoapps.app/en/dual-n-back/dual-n-back-progress-log/): Use a simple dual n-back session log to compare levels, accuracy and errors fairly. Includes a fictional worked example and a weekly review method. - [How to increase your IQ: evidence and dual n-back](https://romeoapps.app/en/dual-n-back/how-to-increase-iq/): Can you increase your IQ? Understand education, practice effects and the limits of brain training, then learn how to practise dual n-back on iPhone. - [Chimp memory test: rules, examples and scores](https://romeoapps.app/en/dual-n-back/chimp-memory-test-guide/): Understand the chimp memory test, practise remembering numbered positions and compare scores fairly. Discover the memory exercises in Dual N-Back for iPhone. - [Visual memory vs sequence memory: which task to choose?](https://romeoapps.app/en/dual-n-back/visual-vs-sequence-memory/): Learn the difference between remembering a pattern, an ordered sequence and a numbered layout. Simple examples help you choose a memory exercise on iPhone. - [How to remember what you study: recall and spaced review](https://romeoapps.app/en/dual-n-back/remember-what-you-study/): Use active recall, feedback and spaced review to study a subject. Follow a concrete example and understand how learning a course differs from dual n-back. - [No sound in dual n-back on iPhone? Checks to try](https://romeoapps.app/en/dual-n-back/dual-n-back-no-sound-iphone/): Cannot hear the letters in dual n-back? Check iPhone media volume, Bluetooth output and app settings, then gather useful details if the problem continues. - [Dual N-Back settings on iPhone: audio, feedback and levels](https://romeoapps.app/en/dual-n-back/dual-n-back-settings-iphone/): Understand audio, feedback, N-levels, progression locks and session length with an annotated screenshot of the Dual N-Back iPhone app. - [Menopause workout plan for women over 50](https://romeoapps.app/en/vitalia/menopause-workout-plan-women-over-50/): What a sensible training week looks like during perimenopause, menopause and after: how many sessions, how hard, and what to do on the days you feel flat. - [Strength training for women over 50: the first four weeks](https://romeoapps.app/en/vitalia/strength-training-women-over-50-beginners/): A beginner’s path into strength training after 50, with the five movements that matter, how many sets, and how to know you are working hard enough. - [Menopause belly fat: what exercise really changes](https://romeoapps.app/en/vitalia/menopause-belly-fat-exercise/): Why fat moves to the middle during menopause, what training actually does about it, and which promises to ignore. - [Bone-strengthening exercise after menopause](https://romeoapps.app/en/vitalia/bone-strengthening-exercise-after-menopause/): Which exercise protects bone after menopause, what the LIFTMOR trial found, and how to train safely if you have been told your bone density is low. - [Pelvic floor exercises during menopause](https://romeoapps.app/en/vitalia/pelvic-floor-exercises-menopause/): Leaks when you cough, laugh or lift are common after menopause and often improve with training. Here is what the evidence supports and how to practise correctly. - [Chair exercises for women over 50](https://romeoapps.app/en/vitalia/chair-exercises-women-over-50/): A complete standing and seated workout built around a sturdy chair, for stiff mornings, small flats and days when the floor is not an option. - [Balance exercises after 50 to prevent falls](https://romeoapps.app/en/vitalia/balance-exercises-prevent-falls-over-50/): Falls are the outcome exercise prevents best. What the Cochrane review found, and a five-minute daily balance routine you can do in a kitchen. - [How much protein for a woman over 50](https://romeoapps.app/en/vitalia/protein-for-women-over-50/): Protein targets for women over 50 from the PROT-AGE recommendations, why spreading it across the day matters, and what a day of ordinary food looks like. - [Menopause, sleep and energy: what exercise changes](https://romeoapps.app/en/vitalia/menopause-sleep-energy-exercise/): An honest look at exercise, hot flushes, broken sleep and low energy during menopause, including where the evidence is weak. - [Firmer arms after 50: the exercises that work](https://romeoapps.app/en/vitalia/firmer-arms-after-50/): Why the back of the arm softens after 50, what training changes, and a short arm session you can do beside a worktop. - [Perimenopause to postmenopause: adapting your training](https://romeoapps.app/en/vitalia/perimenopause-menopause-postmenopause-training/): The three stages defined by the STRAW+10 framework, what changes physically in each, and how to adapt training rather than starting over. - [What tinnitus is, and what the evidence says about treating it](https://romeoapps.app/en/tacet/what-is-tinnitus/): A plain account of ringing in the ears: what causes it, what the guidelines recommend, and which treatments have evidence behind them. - [Sleeping with tinnitus: what helps at three in the morning](https://romeoapps.app/en/tacet/tinnitus-sleep-help/): Why tinnitus is loudest at night, what sound to use and at what level, and the sleep habits that make the biggest difference. - [How to find the pitch of your tinnitus, and why it is useful](https://romeoapps.app/en/tacet/find-your-tinnitus-pitch/): A step-by-step method for matching the frequency of your tinnitus with a tone generator, and what to do with the number once you have it. - [Tinnitus treatments that do not work, according to the guidelines](https://romeoapps.app/en/tacet/tinnitus-what-does-not-work/): Supplements, drugs and devices sold for tinnitus, and what the clinical practice guideline actually recommends against. - [Habituation: what the first months with tinnitus actually feel like](https://romeoapps.app/en/tacet/tinnitus-habituation-first-months/): Why new tinnitus feels catastrophic, what changes over weeks and months, and how to tell progress from a bad day. - [Protecting your hearing when you already have tinnitus](https://romeoapps.app/en/tacet/protect-hearing-prevent-tinnitus/): Noise exposure is a recognised cause of tinnitus. Practical protection at concerts, at work and with headphones, without living in silence. - [Face-to-face translation on iPhone: how DuoTalk is designed](https://romeoapps.app/en/duotalk/face-to-face-translation-on-iphone-duo/): Why a conversation translator should keep both languages in view, how DuoTalk handles speech and text, and what is still being validated before release. - [How to prepare a two-language conversation before you speak](https://romeoapps.app/en/duotalk/how-to-prepare-a-two-language-conversation/): A simple preparation checklist for language choice, short phrases, confirmation and privacy when a conversation goes through a translation app. - [Choosing a conversation translator designed for iPhone Duo: privacy questions and honest limits](https://romeoapps.app/en/duotalk/iphone-duo-translation-privacy-and-limits/): What to ask about speech, storage and supported languages before trusting a new conversation translator, and how DuoTalk answers each question today. - [Nail biting and anxiety: what the link really is](https://romeoapps.app/en/nailsafe/nail-biting-and-anxiety/): Is nail biting a sign of anxiety? What research says about stress, boredom and frustration, and what helps when tension keeps the habit going. - [How long does it take for bitten nails to grow back?](https://romeoapps.app/en/nailsafe/how-long-for-nails-to-grow-back/): Fingernail growth rates from research, why bitten nails can look uneven for months, what helps them recover, and when damage needs a doctor. - [Bitter nail polish: does it work to stop nail biting?](https://romeoapps.app/en/nailsafe/bitter-nail-polish-does-it-work/): What studies found when bitter nail polish was compared with a competing response, how to use it well, its real limits, and the safety points. - [How to stop picking your cuticles and hangnails](https://romeoapps.app/en/nailsafe/stop-picking-cuticles/): Why cuticle and hangnail picking starts, the infection risk around the nail, practical steps to stop, and when picking is worth a professional. - [Nail biting in children: a calm guide for parents](https://romeoapps.app/en/nailsafe/nail-biting-in-children/): How common nail biting is in children, what tends to set it off, why nagging backfires, what actually helps, and when to talk to a doctor. - [Is nail biting bad for you? The real health effects](https://romeoapps.app/en/nailsafe/is-nail-biting-bad-for-you/): What nail biting actually does to nails, skin, teeth and quality of life, which effects matter most, and which signs mean it is time to see a doctor. - [What to put in a go-bag: an evacuation checklist](https://romeoapps.app/en/surv/what-to-put-in-a-go-bag/): What an evacuation go-bag should hold, using the Red Cross and Ready.gov lists: water, food, medicines, documents, cash, and what each person adds. - [How to purify water in an emergency: boil or disinfect](https://romeoapps.app/en/surv/how-to-purify-water-in-an-emergency/): The EPA’s exact steps for boiling water and disinfecting it with unscented bleach, what these methods cannot remove, and how to store treated water. - [Power outage checklist: before, during and after](https://romeoapps.app/en/surv/power-outage-checklist/): What to prepare before a blackout, how long food stays safe, generator and carbon monoxide rules, and medical devices, from Ready.gov and the Red Cross. - [How to use a compass: bearings, maps and declination](https://romeoapps.app/en/surv/how-to-use-a-compass/): The parts of a baseplate compass, how to take and follow a bearing, orient a map, correct for magnetic declination, and avoid readings disturbed by metal. - [First aid kit checklist: what the Red Cross recommends](https://romeoapps.app/en/surv/first-aid-kit-checklist/): The American Red Cross list for a family first aid kit, item by item, plus personal medicines, where to keep kits, checking expiry dates and getting trained. - [How to prepare for an earthquake: Drop, Cover, Hold On](https://romeoapps.app/en/surv/earthquake-preparedness/): How to secure your home, what to do during the shaking with Drop, Cover, and Hold On, and what to check afterwards, from Ready.gov, ShakeOut and the Red Cross. - [How to calculate percentages in your head, step by step](https://romeoapps.app/en/numvolt/calculate-percentages-in-your-head/): Build any percentage from 10%, 5% and 1%, swap the numbers when it helps, and handle discounts, tips, tax and percentage change without a calculator. - [How to multiply two-digit numbers in your head](https://romeoapps.app/en/numvolt/multiply-two-digit-numbers-in-your-head/): Four ways to multiply two-digit numbers without paper: splitting, rounding and correcting, the difference of squares and numbers near 100, with worked examples. - [Mental math for interviews: what to practise and how](https://romeoapps.app/en/numvolt/mental-math-for-interviews/): How to prepare for interview arithmetic in consulting, finance and trading: estimation, zeros, percentages, growth, the rule of 72 and calculating out loud. - [Mental math games for adults, and how to keep them useful](https://romeoapps.app/en/numvolt/mental-math-games-for-adults/): Timed sprints, target-number puzzles, the 24 game, dice and card games, duels and estimation: how each format works, what it trains and how to keep it honest. - [How to improve number sense as an adult](https://romeoapps.app/en/numvolt/how-to-improve-number-sense/): What number sense is, what research on estimation and magnitude does and does not show, and practical exercises that build a feel for numbers. - [How to divide numbers in your head, with worked examples](https://romeoapps.app/en/numvolt/how-to-divide-in-your-head/): Division as a missing multiplication, halving chains, dividing by 5, 25 and 125, chunking, estimating quotients, and turning remainders into decimals. - [How to make your voice deeper without straining it](https://romeoapps.app/en/vocalmaxx/how-to-make-your-voice-deeper/): What actually makes a voice sound deeper, what practice can change, what anatomy fixes, and why pushing your voice down tends to backfire. - [How to find your vocal range, safely and step by step](https://romeoapps.app/en/vocalmaxx/how-to-find-your-vocal-range/): Speaking range versus singing range, how to find your lowest and highest notes with gentle slides, and why one measurement is never the whole answer. - [Average voice pitch for men and women: what studies found](https://romeoapps.app/en/vocalmaxx/average-voice-pitch-men-women/): Measured speaking frequencies for adult men and women from published studies, why the figures differ, how age shifts them, and why an average is not a target. - [Voice exercises for speaking with more confidence](https://romeoapps.app/en/vocalmaxx/voice-exercises-for-confidence/): Practical exercises for breath, volume, pace, pauses, articulation and endings that make a speaking voice steadier, with recordings to check progress. - [How to speak from your chest, and what that really means](https://romeoapps.app/en/vocalmaxx/how-to-speak-from-your-chest/): What chest voice and chest resonance actually are, what the vibration you feel tells you, and gentle exercises for a fuller voice without pressing your throat. - [What is vocal fry, and should you stop using it?](https://romeoapps.app/en/vocalmaxx/what-is-vocal-fry/): What vocal fry is in the larynx, where it shows up in speech, what listener studies found, what is known about harm, and how to reduce it if you want to. - [How much does vaping cost? Work out your real yearly spend](https://romeoapps.app/en/puffoff/how-much-does-vaping-cost/): A simple method to calculate what vaping costs you per week, month and year, with worked examples, disposables versus refillables and the forgotten costs. - [Quit vaping without gaining weight: what actually helps](https://romeoapps.app/en/puffoff/quit-vaping-without-gaining-weight/): Why appetite and weight can change after stopping nicotine, what the evidence says about limiting it, and an order of steps that protects the quit. - [Quitting vaping and sleep: why nights get worse, what helps](https://romeoapps.app/en/puffoff/quitting-vaping-and-sleep/): Why sleep can be disrupted when you stop vaping, how long it usually lasts, the caffeine trap, and practical steps for the first weeks of nights. - [How to quit disposable vapes: a plan built for single-use](https://romeoapps.app/en/puffoff/how-to-quit-disposable-vapes/): Why single-use vapes are harder to cut down, a step-by-step plan to stop, the support options, and how to get rid of used devices safely. - [Quit vaping after quitting smoking, without going back](https://romeoapps.app/en/puffoff/quit-vaping-after-quitting-smoking/): For people who switched from cigarettes to vaping: when to stop vaping, how to lower the risk of smoking again, and which order of steps is safest. - [Does quitting vaping help anxiety? What the evidence says](https://romeoapps.app/en/puffoff/does-quitting-vaping-help-anxiety/): Why anxiety can rise in the first weeks without nicotine, what studies of people who quit smoking found about mood later, and how to get through the dip. - [Midjourney photorealistic prompts: a practical method](https://romeoapps.app/en/larpgpt/midjourney-photorealistic-prompts/): How to write Midjourney prompts that read as photographs: a camera-first structure, the documented parameters that help, and how to iterate. - [ChatGPT image prompts for luxury photos that look real](https://romeoapps.app/en/larpgpt/chatgpt-image-prompts-luxury-photos/): How to prompt ChatGPT for believable luxury and lifestyle images: materials, light, restraint, worked examples, and care with brands and disclosure. - [How to write AI prompts for realistic people](https://romeoapps.app/en/larpgpt/prompts-for-realistic-people/): Describe believable people in AI images: posture, clothing, skin, hands and light, plus the consent, likeness and disclosure rules that come with it. - [Lighting keywords for AI photos: a practical glossary](https://romeoapps.app/en/larpgpt/lighting-keywords-for-ai-photos/): Golden hour, blue hour, window light, backlight, low key and more: what each lighting term looks like in a photo and how to write it in an AI prompt. - [Negative prompts explained: when to use them, and how](https://romeoapps.app/en/larpgpt/negative-prompts-explained/): What a negative prompt is, which image tools document one, how Midjourney's --no and Stable Diffusion's negative_prompt work, and why to use them sparingly. - [Aspect ratios for AI images: how to choose and set them](https://romeoapps.app/en/larpgpt/aspect-ratios-for-ai-images/): Square, 3:2, 16:9 or vertical 9:16: how to pick an aspect ratio for an AI image, how composition changes with it, and how Midjourney and OpenAI set it. - [How to build a dual n-back routine you can read honestly](https://romeoapps.app/en/dual-n-back/build-a-dual-n-back-routine/): A practical way to choose settings, keep sessions comparable and learn from errors without turning one score into a promise. - [How to quit vaping with a trigger plan you can use](https://romeoapps.app/en/puffoff/quit-vaping-with-a-trigger-plan/): Map urges, prepare small substitutions and know when professional quit support belongs in the plan. - [How to make nail-biting triggers visible without shame](https://romeoapps.app/en/nailsafe/make-nail-biting-triggers-visible/): A calm tracking method for noticing hands, situations and replacement actions when nail biting happens. - [How to write AI photo prompts that stay readable](https://romeoapps.app/en/larpgpt/ai-photo-prompts-that-stay-readable/): A repeatable prompt structure for subject, light, lens language and constraints, with examples that are easier to refine. - [What to keep in an offline emergency kit, starting with your phone](https://romeoapps.app/en/surv/offline-emergency-kit-from-your-phone/): A practical checklist for power, information, contacts and basic supplies when networks or electricity are unreliable. - [Voice practice without strain: a simple routine](https://romeoapps.app/en/vocalmaxx/voice-practice-without-strain/): How to warm up gently, record useful comparisons and stop before practice turns into a voice problem. - [Mental math practice without guessing: a better daily loop](https://romeoapps.app/en/numvolt/mental-math-practice-without-guessing/): Use mental arithmetic to practise methods, check errors and build speed without confusing a fast guess with a reliable answer. - [Protecting your hearing when tinnitus is part of the picture](https://romeoapps.app/en/tacet/protect-hearing-with-a-tinnitus-plan/): A calm guide to sound exposure, listening habits and the limits of a tinnitus-support app. - [Strength training after 50: a safe starting checklist](https://romeoapps.app/en/vitalia/strength-training-after-50-starting-checklist/): How to begin with manageable movements, recovery and clear goals without turning an exercise app into medical advice. - [Stroop Effect Test: How Cognitive Control and Inattention Are Measured](https://romeoapps.app/en/dual-n-back/stroop-effect-test-guide/): How color-word conflict measures response inhibition, selective attention and mental processing speed, and how to train your scores on iPhone. - [Reaction Time Training: How to Measure and Improve Processing Speed](https://romeoapps.app/en/dual-n-back/reaction-time-training/): The science of human response speed, visual versus auditory reaction times, and practical drills to train processing speed. - [Mental Math Multiplication Shortcuts: Multiply Numbers in Seconds](https://romeoapps.app/en/numvolt/mental-math-shortcuts-multiplication/): Master practical mental arithmetic techniques for fast two-digit multiplication, squaring and distributive breakdown without pen or paper. - [Working Memory vs Short-Term Memory: The Key Difference and How to Train It](https://romeoapps.app/en/dual-n-back/working-memory-vs-short-term-memory/): Understand why short-term memory is passive storage while working memory is active manipulation, how it predicts fluid intelligence, and how to strengthen cognitive control. - [Fluid Intelligence and Brain Training: What the Science Actually Shows](https://romeoapps.app/en/dual-n-back/fluid-intelligence-training-science/): An objective look at fluid reasoning, the Jaeggi Dual N-Back research, near transfer, and how deliberate practice trains interference resolution on iPhone. - [Ringing ears after a loud night: what to do next](https://romeoapps.app/en/tacet/ringing-ears-after-loud-noise/): What temporary tinnitus after a concert or a loud event usually means, what helps in the first days, and when to get your hearing checked. - [White, pink or brown noise for tinnitus: which to try](https://romeoapps.app/en/tacet/white-pink-brown-noise-for-tinnitus/): How the common background sounds differ, why a lower pitch often feels softer, and how to choose a level that supports you without covering everything. - [Tinnitus spikes: what to write down and what to ignore](https://romeoapps.app/en/tacet/tinnitus-spikes-what-to-write-down/): A short method for logging louder days, the four things worth recording, and how a journal turns bad nights into a useful conversation with a clinician. - [Wildfire evacuation checklist you can prepare in an hour](https://romeoapps.app/en/surv/wildfire-evacuation-checklist/): What Ready.gov asks you to have before a wildfire warning, how to split the list between go-bag, car and house, and why the plan must work with the network down. - [Heat wave checklist: staying safe when the power fails](https://romeoapps.app/en/surv/heat-wave-checklist-without-power/): How to prepare a home for extreme heat, what to do when the air conditioning stops, and the warning signs of heat exhaustion and heatstroke to watch for. - [Recording your voice for practice: a simple setup](https://romeoapps.app/en/vocalmaxx/record-your-voice-for-practice/): Where to hold the phone, how loud to speak, what to record every week and how to listen back without judging yourself out of practising. - [Apps to stop biting your nails, compared](https://romeoapps.app/en/nailsafe/apps-to-stop-biting-your-nails-compared/): Habit trackers, awareness tools, bitter coatings and clinical programmes: what each approach actually does, what it cannot do, and how to check any of them before you install. - [Offline emergency preparedness apps, compared](https://romeoapps.app/en/surv/offline-preparedness-apps-compared/): Alert apps, offline reference guides, checklist tools and paper: which ones still work when the network does not, and what to check before you need them. - [Voice training apps, compared](https://romeoapps.app/en/vocalmaxx/voice-training-apps-compared/): Pitch meters, guided courses, recording journals and speech therapy: what each one measures, what it cannot judge, and when a person is the right answer. - [Mental math apps, compared](https://romeoapps.app/en/numvolt/mental-math-apps-compared/): Drill apps, method teachers, competitive trainers and flashcards: which one builds speed, which one builds understanding, and why the difference shows up later. - [AI image prompt tools, compared](https://romeoapps.app/en/larpgpt/ai-image-prompt-tools-compared/): Prompt libraries, prompt builders, in-generator assistants and writing it yourself: what each saves you, what each costs you, and which one teaches you anything. ## Formats - [Markdown](https://romeoapps.app/en/llms-full.txt) - [RSS](https://romeoapps.app/en/feed.xml) - [Sitemap](https://romeoapps.app/sitemaps/en.xml)