# Brain Age SP vs 確定申告の基礎知識｜e taxやマイナンバーの確定申告アプリ

The clearest difference is update cadence: Brain Age SP at every 11 months against 確定申告の基礎知識｜e taxやマイナンバーの確定申告アプリ's every 42 months. On price, ads, 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.

Brain Age SP ships an update every 11 months, 確定申告の基礎知識｜e taxやマイナンバーの確定申告アプリ every 42 months. The most recent releases landed on November 1, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Brain Age SP | 確定申告の基礎知識｜e taxやマイナンバーの確定申告アプリ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 11 months** | Every 42 months |
| Monetization | Ad-supported | — |
| Size | 8 MB | 96 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [infinitysoftware Co.,Ltd](https://appshunter.io/developer/397323076) | [Ayaka Morita](https://appshunter.io/developer/987897829) |

## What reviewers say

### Brain Age SP

[App page](https://appshunter.io/ios/app/brain-age-sp/id640963146)

Measure your brain's age in seconds or in more detail. It assesses kinetic vision, memory, calculating ability, spatial awareness, and collective strength. The app recommends other applications to help train weaker cognitive areas.

**Highlights:** Quick brain age measurement, Detailed cognitive assessment, Measures kinetic vision, memory, calculation, spatial awareness, collective strength, Recommends training applications, Global score competition via GameCenter

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

**In-app purchases:** none


### 確定申告の基礎知識｜e taxやマイナンバーの確定申告アプリ

[App page](https://appshunter.io/ios/app/e-tax/id1207137645)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Brain Age SP free?

Brain Age SP is free to download, with no in-app purchases.

### Is 確定申告の基礎知識｜e taxやマイナンバーの確定申告アプリ free?

確定申告の基礎知識｜e taxやマイナンバーの確定申告アプリ is free to download, with no in-app purchases.

### Do Brain Age SP or 確定申告の基礎知識｜e taxやマイナンバーの確定申告アプリ have ads?

Both Brain Age SP and 確定申告の基礎知識｜e taxやマイナンバーの確定申告アプリ show ads.

### Which is updated more often, Brain Age SP or 確定申告の基礎知識｜e taxやマイナンバーの確定申告アプリ?

Brain Age SP ships an update every 11 months, and 確定申告の基礎知識｜e taxやマイナンバーの確定申告アプリ every 42 months. Most recently, Brain Age SP was updated on November 1, 2026 and 確定申告の基礎知識｜e taxやマイナンバーの確定申告アプリ 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.*