Comparison

iAddThree vs Train Your Brain

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

Head to head
About

iAddThree

Engage your mind with a unique math game that challenges your focus and cognitive abilities. The objective is to add three to each number presented, with a special rule where numbers wrap around to zero instead of forming double digits. This simple yet effective exercise provides a mental workout.

Highlights
  • Cognitive training
  • Focus improvement
  • Unique math rules
  • Brain exercise
  • High score challenges
Features
Read full description

Train your brain and improve your focus with the simple yet challenging math game, iAddThree. Adapted from an exercise that was used to measure cognitive focus in the popular book Thinking Fast and Slow by Daniel Kahneman, iAddThree engages your mind by bending the rules of basic math to give your brain the mental exercise it deserves. THE RULES------------- It's simple. Just add 3 to each of the four numbers that are presented. The challenge? No double digits. Instead, you must wrap around to 0. Normally, 8+3=11, but in iAddThree, 8+3=1. Think of it as a line of numbers that are constantly repeating. 8 -> 9 -> 0 -> 1 -> 2 -> 3. The struggle provided by this simple math game will have you boasting about your high score to all your friends. So, how well do you think you can iAddThree?

About

Train Your Brain

Engage in a variety of memory games designed to enhance retention and cognitive skills. This app offers a collection of challenges with adjustable difficulty levels to help users of all ages improve their memory and attention span.

Highlights
  • Memory games for short and long term retention
  • Daily memory training routines
  • Multiple game types including card pairs and sequence repetition
  • Adjustable difficulty levels
  • Progress tracking and scoring
  • Available in 5 languages
Features
Read full description

Stimulate your memory and have fun with memory senior games. A complete collection of games that will help you develop your memory skills while having fun. Within this app you will find different games to test your capacity of retention and memory in the short and long term. Each game has different levels so you can practice gradually. In addition, you can see the score obtained in each level and visualize your progress. Ideal to stimulate the memory of older people. TYPES OF GAMES - Find card pairs - Repeat sequences - Avoid obstacles and trace the right path - Remember figures and numbers - Memorize patterns - Associate objects - Memorize elements of different images - Distractive games to stimulate working memory APP FEATURES - Daily memory training - Available in 5 languages - Simple and intuitive interface - Different levels for all ages - Constant updates with new games COGNITIVE STIMULATION Senior memory games belongs to a collection of games designed to stimulate different cognitive areas in adults: Memory, Attention, Processing speed, Visuospatial Function and Coordination. The design of these games has been carried out in collaboration with experts in neuroscience and psychiatry, with the aim of creating playful content and, in addition, serve as a complement to the treatments carried out in health centers. ABOUT TELLMEWOW Tellmewow is a mobile game development company specialized in easy adaptation and basic usability which makes our games ideal for the elderly or young people who simply want to play an occasional game without major complications. If you have any suggestions for improvement or want to stay tuned about upcoming games, follow us on our social networks. @tellmewow

Screenshots

iAddThree4 screens
Train Your Brain4 screens

Verdict

The call

The clearest difference is review sentiment: iAddThree at 100% against Train Your Brain's 49%. iAddThree also leads on rating (5.0 vs 4.6) and update cadence (every 3 weeks vs every 3 months). Train Your Brain's advantage is ratings volume (5.7K vs 1) and iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and monetization model 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. iAddThree sells 1 one-off in-app purchase and Train Your Brain sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

iAddThree holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Train Your Brain has 5.7K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of iAddThree's written reviews are positive against 49% of Train Your Brain's.

UpkeepUpdate frequency

iAddThree ships an update every 3 weeks, Train Your Brain every 3 months. The most recent releases landed on October 14, 2026 and October 15, 2026 respectively.

Scorecard5 real differences · 5 level
iAddThree versus Train Your Brain: the parameters behind the verdict, then further details
ParameteriAddThreeTrain Your Brain
PriceFreeFree
Rating5.0 (1 ratings) — better4.6 (5.7K ratings)
Positive reviews100.0% of reviews — better48.9% of reviews
Number of ratings15.7K — better
Update frequencyEvery 3 weeks — betterEvery 3 months
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size30 MB300 MB
Age rating4+4+
DeveloperNikolai NobadiTellmewow

Customer experience

iAddThree

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Train Your Brain

All ratings5,715 ratings
Positive89.9%
Neutral5.5%
Negative4.5%
Written reviews186 reviews
Positive48.9%
Neutral12.9%
Negative38.2%

Bugs and requests

iAddThree

Not enough reviews yet to summarise bugs or requests.

Train Your Brain

Reported bugs

3 issues
  • Face/name recognition game not working
  • Paid games still showing ads
  • Grocery list game has unrecognizable items

Requested features

3 requests
  • Option to adjust game speed and difficulty
  • Ability to disable all sounds
  • Better scoring system and feedback

In-app purchases

1 purchases

iAddThree

One-time1
  • Remove Ads$0.99
1 purchases

Train Your Brain

One-time1
  • Remove Ads$3.99

Questions

Is iAddThree free?
iAddThree is free to download, with in-app purchases available.
Is Train Your Brain free?
Train Your Brain is free to download, with in-app purchases available.
Which has better reviews, iAddThree or Train Your Brain?
iAddThree is rated higher. iAddThree averages 5.0 out of 5 from 1 ratings, while Train Your Brain averages 4.6 from 5.7K ratings.
Do iAddThree or Train Your Brain have ads?
Both iAddThree and Train Your Brain show ads.
Which is updated more often, iAddThree or Train Your Brain?
iAddThree ships an update every 3 weeks, and Train Your Brain every 3 months. Most recently, iAddThree was updated on October 14, 2026 and Train Your Brain on October 15, 2026.

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