# [大人の脳トレ] 反射神経の王様！無料で出来る反射神経UPアプリ！ vs BrainDojo

The clearest difference is in-app purchases: [大人の脳トレ] 反射神経の王様！無料で出来る反射神経UPアプリ！ at none against BrainDojo's 3. [大人の脳トレ] 反射神経の王様！無料で出来る反射神経UPアプリ！ also leads on ads (none vs shown) and iOS requirement (8.0 vs 15.0). BrainDojo's advantage is update cadence (weekly vs every 26 months). On price and device support there is nothing between them.

Both are free to download. BrainDojo sells 3 in-app purchases, starting at $6.99 per month. [大人の脳トレ] 反射神経の王様！無料で出来る反射神経UPアプリ！ asks for nothing beyond the download.

[大人の脳トレ] 反射神経の王様！無料で出来る反射神経UPアプリ！ ships an update every 26 months, BrainDojo weekly. The most recent releases landed on May 17, 2026 and August 13, 2026 respectively.

## The numbers

| Metric | [大人の脳トレ] 反射神経の王様！無料で出来る反射神経UPアプリ！ | BrainDojo |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 26 months | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 9 MB | 268 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [REP COM Inc.](https://appshunter.io/developer/702707146) | [StudyX G.K.](https://appshunter.io/developer/1451314118) |

## What reviewers say

### [大人の脳トレ] 反射神経の王様！無料で出来る反射神経UPアプリ！

[App page](https://appshunter.io/ios/app/up/id908026865)

**Features:** macOS Compatibility

**In-app purchases:** none


### BrainDojo

[App page](https://appshunter.io/ios/app/braindojo-adhd-brain-training/id6739862455)

Engage in daily brain training activities like handwriting and reading aloud to boost focus and cognitive skills. Suitable for all ages, this app offers fun, effective exercises with new content added monthly.

**Highlights:** Handwriting exercises, Reading aloud practice, Calculation activities, Focus improvement, Memory enhancement, New content monthly

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BrainDojo Plus | $6.99 | per month |
| BrainDojo Plus | $39.99 | per year |
| Tip | $0.99 | one-time |


## Frequently asked questions

### Is [大人の脳トレ] 反射神経の王様！無料で出来る反射神経UPアプリ！ free?

[大人の脳トレ] 反射神経の王様！無料で出来る反射神経UPアプリ！ is free to download, with no in-app purchases.

### Is BrainDojo free?

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

### Do [大人の脳トレ] 反射神経の王様！無料で出来る反射神経UPアプリ！ or BrainDojo have ads?

BrainDojo shows ads; [大人の脳トレ] 反射神経の王様！無料で出来る反射神経UPアプリ！ does not.

### Which is updated more often, [大人の脳トレ] 反射神経の王様！無料で出来る反射神経UPアプリ！ or BrainDojo?

[大人の脳トレ] 反射神経の王様！無料で出来る反射神経UPアプリ！ ships an update every 26 months, and BrainDojo weekly. Most recently, [大人の脳トレ] 反射神経の王様！無料で出来る反射神経UPアプリ！ was updated on May 17, 2026 and BrainDojo on August 13, 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.*