# LearnLang vs Cairn Koans

The clearest difference is update cadence: LearnLang at fortnightly against Cairn Koans's every 2 months. LearnLang also leads on iOS requirement (12.4 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. LearnLang sells 1 in-app purchase, starting at $4.99 per month and Cairn Koans sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

LearnLang ships an update fortnightly, Cairn Koans every 2 months. The most recent releases landed on September 5, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | LearnLang | Cairn Koans |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Size | 27 MB | 40 MB |
| Requires iOS | **12.4** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ondokuzon](https://appshunter.io/developer/1689042240) | [Drew Douglass](https://appshunter.io/developer/1887999660) |

## What reviewers say

### LearnLang

[App page](https://appshunter.io/ios/app/learnlang-practice-language/id6449432967)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Aylık Üyelik | $4.99 | per month |


### Cairn Koans

[App page](https://appshunter.io/ios/app/cairn-koans/id6762514658)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| A Pebble | $1.99 | one-time |
| A Stone | $4.99 | one-time |
| A Standing Stone | $9.99 | one-time |
| A Cornerstone | $19.99 | one-time |


## Frequently asked questions

### Is LearnLang free?

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

### Is Cairn Koans free?

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

### Do LearnLang or Cairn Koans have ads?

Neither LearnLang nor Cairn Koans shows ads.

### Which is updated more often, LearnLang or Cairn Koans?

LearnLang ships an update fortnightly, and Cairn Koans every 2 months. Most recently, LearnLang was updated on September 5, 2026 and Cairn Koans on September 14, 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.*