# 記憶KEEPER vs Rail Typing

The clearest difference is in-app purchases: 記憶KEEPER at none against Rail Typing's 3. 記憶KEEPER also leads on iOS requirement (15.0 vs 18.0). Rail Typing's advantage is update cadence (daily vs every 3 days). On price, ads and device support there is nothing between them.

Both are free to download. Rail Typing sells 3 in-app purchases, starting at $1.99 per month. 記憶KEEPER asks for nothing beyond the download.

記憶KEEPER ships an update every 3 days, Rail Typing daily. The most recent releases landed on October 7, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | 記憶KEEPER | Rail Typing |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 days | **Daily** |
| Size | 4 MB | 49 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [nao watanabe](https://appshunter.io/developer/1896686911) | [渭康 吕](https://appshunter.io/developer/1896211147) |

## What reviewers say

### 記憶KEEPER

[App page](https://appshunter.io/ios/app/keeper/id6769772312)

**Features:** macOS Compatibility

**In-app purchases:** none


### Rail Typing

[App page](https://appshunter.io/ios/app/rail-typing-learn-languages/id6817686826)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rail Pass · Monthly | $1.99 | per month |
| Rail Pass · Yearly | $9.99 | per year |
| Rail Pass · Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is 記憶KEEPER free?

記憶KEEPER is free to download, with no in-app purchases.

### Is Rail Typing free?

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

### Do 記憶KEEPER or Rail Typing have ads?

Neither 記憶KEEPER nor Rail Typing shows ads.

### Which is updated more often, 記憶KEEPER or Rail Typing?

記憶KEEPER ships an update every 3 days, and Rail Typing daily. Most recently, 記憶KEEPER was updated on October 7, 2026 and Rail Typing on October 10, 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.*