Comparison

Problem Size vs Brain Personal Trainer LB

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Problem Size

This app uses cartoon videos and an AI buddy to teach children how to assess social situations and react appropriately. It categorizes scenarios into Glitches, Bummers, and Disasters, offering real-time feedback and rewards for regular practice. A parent dashboard allows for progress tracking.

Highlights
  • Cartoon-styled video library
  • Categorize social situations
  • AI-powered feedback
  • Award and streak system
  • Parent progress dashboard
  • Learn social reaction skills
Features
Read full description

Problem Size helps kids, including neurodivergent children with ADHD and ASD, practice reading social situations and reacting in a way that fits using the “Size of The Problem” methodology! Through a library of 300 cartoon-styled videos, kids learn to sort situations into three categories used in clinical practice: Glitches, Bummers, and Disasters. As they watch and respond, their AI buddy, Bolt, gives real-time feedback to help build confidence and judgment. Collect awards and grow your streak by practicing regularly! Grown-ups! You can track your child's practice sessions and see exactly where they're improving, for targeted practice through the Parent Dashboard Problem Size was created by high schooler Sherry Chen, after watching her mom spend countless hours trying to teach her brother social skills using scenarios just like the ones in this app! Questions or feedback? We'd love to hear from you at sizeoftheproblemapp@gmail.com. More information can be found

About

Brain Personal Trainer LB

Features
Read full description

A personal trainer for the mind: fourteen short exercises across memory, numbers, focus and logic, one score that makes everything comparable, and a Challenge between two nearby phones. Runs entirely on the device, with no account and no network. HOW IT WORKS The screen is split in four by its diagonals, one colour per area. Tap a sector, pick an exercise and a difficulty, play for a minute. At the end you get a score from 0 to 1000, the same scale for every exercise: a good Pairs round is worth as much as a good arithmetic round. Statistics show an overall index and one per area, day by day. THE FOUR AREAS • Memory: colour sequence, grid, digit span, Pairs with playing cards, animals, food or objects. • Numbers: quick maths, estimation at a glance, what comes next, and the till: give the exact change by catching coins and notes in nine currencies. • Focus: colour or word (Stroop effect), reflexes, the odd one out. • Logic: matrices, anagrams, analogies. WHAT SETS IT APART • The till: an exercise found nowhere else, born from someone who really stands behind a counter. • Several players on one phone, each with their own statistics, records and certificates. • The certificate of the month: your personal best on a sheet to share or print. • The player card: take your results to another phone in a file. • Age adjusts the games: timings and the yardstick for reflexes change with the years. • Six Home themes, including a marquetry of four woods. • Fifteen languages; anagrams and analogies rewritten, not translated, in five. REAL PRIVACY No account, no data collection, no ads. History is a file on the phone. The only permission requested is local network, and only for the Challenge. FREE AND PRO All fourteen exercises are open, at every difficulty. Free: six sessions a day and the last seven days of history. Pro, one payment and no subscription: unlimited sessions, full history, nearby Challenge.

Screenshots

Problem Size4 screens
Brain Personal Trainer LB4 screens

Verdict

The call

The clearest difference is in-app purchases: Problem Size at none against Brain Personal Trainer LB's 2. On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Brain Personal Trainer LB sells 2 one-off in-app purchases. Problem Size asks for nothing beyond the download.

Scorecard1 real difference · 8 level
Problem Size versus Brain Personal Trainer LB: the parameters behind the verdict, then further details
ParameterProblem SizeBrain Personal Trainer LB
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequency—Weekly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better17.6
Further details — not scored
Size394 MB8 MB
Age rating4+4+
DeveloperSherry ChenLuigi Banfi

In-app purchases

None

Problem Size

No in-app purchases

2 purchases

Brain Personal Trainer LB

One-time2
  • Plus 2 Pack$1.99
  • Brain Personal Trainer Pro$3.99

Questions

Is Problem Size free?
Problem Size is free to download, with no in-app purchases.
Is Brain Personal Trainer LB free?
Brain Personal Trainer LB is free to download, with in-app purchases available.
Do Problem Size or Brain Personal Trainer LB have ads?
Neither Problem Size nor Brain Personal Trainer LB shows ads.

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