# 脳内そろばん vs まいにち5分！そろばん練習

The clearest difference is in-app purchases: まいにち5分！そろばん練習 at none against 脳内そろばん's 1. まいにち5分！そろばん練習 also leads on update cadence (every 2 days vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 脳内そろばん sells 1 one-off in-app purchase. まいにち5分！そろばん練習 asks for nothing beyond the download.

脳内そろばん ships an update monthly, まいにち5分！そろばん練習 every 2 days. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 脳内そろばん | まいにち5分！そろばん練習 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 days** |
| Size | 5 MB | 37 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ryo Sato](https://appshunter.io/developer/1831657696) | [Masashi Saito](https://appshunter.io/developer/1045097101) |

## What reviewers say

### 脳内そろばん

[App page](https://appshunter.io/ios/app/id6790279857)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアム | $3.99 | one-time |


### まいにち5分！そろばん練習

[App page](https://appshunter.io/ios/app/5/id6814269098)

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

**In-app purchases:** none


## Frequently asked questions

### Is 脳内そろばん free?

脳内そろばん is free to download, with in-app purchases available.

### Is まいにち5分！そろばん練習 free?

まいにち5分！そろばん練習 is free to download, with no in-app purchases.

### Do 脳内そろばん or まいにち5分！そろばん練習 have ads?

Neither 脳内そろばん nor まいにち5分！そろばん練習 shows ads.

### Which is updated more often, 脳内そろばん or まいにち5分！そろばん練習?

脳内そろばん ships an update monthly, and まいにち5分！そろばん練習 every 2 days. Most recently, 脳内そろばん was updated on October 26, 2026 and まいにち5分！そろばん練習 on October 24, 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.*