# iAddThree vs Train Your Brain

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.

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.

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.

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.

## The numbers

| Metric | iAddThree | Train Your Brain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/iaddthree/id1389962750/reviews)** | [4.6 (5.7K ratings)](https://appshunter.io/ios/app/train-your-brain-memory-games/id1415728029/reviews) |
| Number of ratings | 1 | **5.7K** |
| Positive reviews | **100.0% of reviews** | 48.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 30 MB | 300 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Nikolai Nobadi](https://appshunter.io/developer/1330360753) | [Tellmewow](https://appshunter.io/developer/1373142956) |

## What reviewers say

### iAddThree

[App page](https://appshunter.io/ios/app/iaddthree/id1389962750)

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:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


### Train Your Brain

[App page](https://appshunter.io/ios/app/train-your-brain-memory-games/id1415728029)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $3.99 | one-time |

**What reviewers like**

- 🧠 Helpful brain games
- 👍 Variety of memory exercises
- 🤓 Engaging and challenging

**What reviewers complain about**

- 🚨 Too many ads
- 🐛 Bugs and crashes
- 🕰️ Games too fast for seniors
- 💰 Paid to remove ads but they keep coming back

**Reported bugs**

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

**Requested features**

- Option to adjust game speed and difficulty
- Ability to disable all sounds
- Better scoring system and feedback


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*