# Drop 10 vs 脳トレ！間違い探し

The clearest difference is review sentiment: Drop 10 at 100% against 脳トレ！間違い探し's 50%. Drop 10 also leads on ads (none vs shown) and rating (5.0 vs 4.6). 脳トレ！間違い探し's advantage is update cadence (every 5 months vs every 18 months). On price, ratings volume, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Drop 10 holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 21 and 27 respectively. Written reviews point the same way: 100% of Drop 10's written reviews are positive against 50% of 脳トレ！間違い探し's.

Drop 10 ships an update every 18 months, 脳トレ！間違い探し every 5 months. The most recent releases landed on October 18, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Drop 10 | 脳トレ！間違い探し |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (21 ratings)](https://appshunter.io/ios/app/drop-10-math-game/id1368033560/reviews)** | [4.6 (27 ratings)](https://appshunter.io/ios/app/id1480969536/reviews) |
| Number of ratings | 21 | **27** |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 18 months | **Every 5 months** |
| Monetization | Free | — |
| Size | 70 MB | 47 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sharyn Efimoff](https://appshunter.io/developer/849990918) | [nullhouse Inc.](https://appshunter.io/developer/853672308) |

## What reviewers say

### Drop 10

[App page](https://appshunter.io/ios/app/drop-10-math-game/id1368033560)

This educational game helps young learners practice addition by focusing on sums that equal 10. It's designed for children in 1st and 2nd grade to build foundational math skills in an engaging way.

**Highlights:** Addition practice, Focus on sums to 10, Designed for 1st and 2nd graders, Engaging gameplay

**Features:** macOS Compatibility

**In-app purchases:** none


### 脳トレ！間違い探し

[App page](https://appshunter.io/ios/app/id1480969536)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Drop 10 free?

Drop 10 is free to download, with no in-app purchases.

### Is 脳トレ！間違い探し free?

脳トレ！間違い探し is free to download, with no in-app purchases.

### Which has better reviews, Drop 10 or 脳トレ！間違い探し?

Drop 10 is rated higher. Drop 10 averages 5.0 out of 5 from 21 ratings, while 脳トレ！間違い探し averages 4.6 from 27 ratings.

### Do Drop 10 or 脳トレ！間違い探し have ads?

脳トレ！間違い探し shows ads; Drop 10 does not.

### Which is updated more often, Drop 10 or 脳トレ！間違い探し?

Drop 10 ships an update every 18 months, and 脳トレ！間違い探し every 5 months. Most recently, Drop 10 was updated on October 18, 2026 and 脳トレ！間違い探し on October 26, 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.*