# Brain Exercise vs 15 Merge

The clearest difference is ads: Brain Exercise at none against 15 Merge's shown. Brain Exercise also leads on iOS requirement (15.0 vs 18.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Brain Exercise sells 4 in-app purchases, starting at $0.99 per month and 15 Merge sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Brain Exercise | 15 Merge |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 110 MB | 200 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [kunal rameshbhai](https://appshunter.io/developer/1117340195) | [Matthew & Rouge](https://appshunter.io/developer/1608146880) |

## What reviewers say

### Brain Exercise

[App page](https://appshunter.io/ios/app/brain-exercise-puzzle/id6483364037)

Enhance focus, memory, and logic with diverse puzzles and exercises for all ages. Develop fine motor skills, master letters and numbers, and sharpen critical thinking through engaging activities. Learn something new daily with a user-friendly and fun mental recharge.

**Highlights:** Diverse game categories, Interactive tracing challenges, Voice-guided learning, Drag, sort, and match puzzles, Spelling and coloring activities, Advanced mind puzzles, Picture and word puzzles

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan 3 days free | $0.99 | per month |
| Yearly Plan 3 days free | $9.99 | per year |
| Remove Ad | $9.99 | one-time |
| Unlock Pro | $29.99 | one-time |


### 15 Merge

[App page](https://appshunter.io/ios/app/15-merge/id6751456723)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tiny Bomb | $2.99 | one-time |
| Bomb Pack | $4.99 | one-time |


## Frequently asked questions

### Is Brain Exercise free?

Brain Exercise is free to download, with in-app purchases available.

### Is 15 Merge free?

15 Merge is free to download, with in-app purchases available.

### Do Brain Exercise or 15 Merge have ads?

15 Merge shows ads; Brain Exercise does not.

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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.*