Roméo Apps
iPhone guides: memory, habits and creative tools
Practical guides to dual n-back, quitting vaping, nail-biting journals, AI photo prompts, offline preparation, voice recordings and mental math.
Dual N-Back
Explore the appHow to play dual n-back: a clear first session
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
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 long and how often to train dual n-back: what the studies actually did
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
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.
Does dual n-back training work? What the evidence actually says
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: what N=1 to N=5 really demand
What the N in n-back counts, how each level changes the task, why dual is harder than single at the same N, and how to decide when to move up.
Ten dual n-back mistakes that quietly stall your progress
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.
How dual n-back scoring works: hits, misses and false alarms
Why a single percentage hides most of what happened in a session, how the four possible outcomes work, and which numbers are worth writing down.
Brain-training exercises compared: what each one actually measures
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.
PuffOff
Explore the appHow to build a quit-vaping plan you will actually use
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
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 get through a vape craving, step by step
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.
Nicotine withdrawal after vaping: what the first weeks usually look like
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
Cold turkey, tapering, nicotine replacement, medication, behavioural support and self-monitoring: what each approach asks of you, and how to choose a first attempt.
NailSafe
Explore the appHow to track nail biting without chasing a streak
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
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.
Habit reversal training: how the method works and what it is for
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.
Why people bite their nails, and what the habit is really doing
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
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.
LarpGPT
Explore the appHow to structure an AI photo prompt from scratch
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
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.
The anatomy of a photo-realistic image 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.
Surv
Explore the appPrepare your phone to be useful when the network is not
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
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.
A home emergency kit: the Ready.gov list, explained
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.
VocalMaxx
Explore the appHow to measure and compare your voice pitch recordings
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
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.
Warming up your voice safely: what a warm-up is for
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.
Numvolt
Explore the appHow mental arithmetic works in your head, and why some methods are easier
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
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.
Mental math techniques worth learning, and how to practise them
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.