# SelfLearnguage vs CoTan

The clearest difference is ads: SelfLearnguage at none against CoTan's shown. CoTan's advantage is update cadence (every 3 days vs every 5 weeks) and iOS requirement (15.1 vs 17.0). On price, 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.

SelfLearnguage ships an update every 5 weeks, CoTan every 3 days. The most recent releases landed on October 11, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | SelfLearnguage | CoTan |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Every 3 days** |
| Size | 17 MB | 28 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [合同会社オフィスエス](https://appshunter.io/developer/1740692738) | [Ryo Minebayashi](https://appshunter.io/developer/1854415357) |

## What reviewers say

### SelfLearnguage

[App page](https://appshunter.io/ios/app/selflearnguage/id6572289527)

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

**In-app purchases:** none


### CoTan

[App page](https://appshunter.io/ios/app/cotan/id6755531559)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SelfLearnguage free?

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

### Is CoTan free?

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

### Do SelfLearnguage or CoTan have ads?

CoTan shows ads; SelfLearnguage does not.

### Which is updated more often, SelfLearnguage or CoTan?

SelfLearnguage ships an update every 5 weeks, and CoTan every 3 days. Most recently, SelfLearnguage was updated on October 11, 2026 and CoTan on October 12, 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.*