# Glagol vs Kaltterra

The clearest difference is in-app purchases: Kaltterra at none against Glagol's 2. Kaltterra also leads on update cadence (every 2 days vs every 9 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Glagol sells 2 in-app purchases, starting at $9.99 per month. Kaltterra asks for nothing beyond the download.

Glagol ships an update every 9 days, Kaltterra every 2 days. The most recent releases landed on November 5, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Glagol | Kaltterra |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 2 days** |
| Size | 126 MB | 596 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mustafa Tugrul Ozenen](https://appshunter.io/developer/6792010703) | [Armagan ERSOY](https://appshunter.io/developer/6804201950) |

## What reviewers say

### Glagol

[App page](https://appshunter.io/ios/app/glagol-learn-russian/id6792010701)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Glagol Pro — Monthly | $9.99 | per month |
| Glagol Pro — Annual | $49.99 | per year |


### Kaltterra

[App page](https://appshunter.io/ios/app/kaltterra-learn-a-language/id6804201948)

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

**In-app purchases:** none


## Frequently asked questions

### Is Glagol free?

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

### Is Kaltterra free?

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

### Do Glagol or Kaltterra have ads?

Neither Glagol nor Kaltterra shows ads.

### Which is updated more often, Glagol or Kaltterra?

Glagol ships an update every 9 days, and Kaltterra every 2 days. Most recently, Glagol was updated on November 5, 2026 and Kaltterra on October 18, 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.*