# Russian Alphabet Practice vs Kaltterra

The clearest difference is in-app purchases: Kaltterra at none against Russian Alphabet Practice's 2. Kaltterra also leads on update cadence (every 2 days vs every 11 months) and iOS requirement (15.1 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Russian Alphabet Practice sells 2 in-app purchases, starting at $1.99 per month. Kaltterra asks for nothing beyond the download.

Russian Alphabet Practice ships an update every 11 months, Kaltterra every 2 days. Both last shipped on November 6, 2026.

## The numbers

| Metric | Russian Alphabet Practice | Kaltterra |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 2 days** |
| Size | 19 MB | 596 MB |
| Requires iOS | 26.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [LUNASOFT DIJITAL HIZMETLER TICARET LIMITED SIRKETI](https://appshunter.io/developer/734831374) | [Armagan ERSOY](https://appshunter.io/developer/6804201950) |

## What reviewers say

### Russian Alphabet Practice

[App page](https://appshunter.io/ios/app/russian-alphabet-practice/id734831821)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Yearly | $9.99 | 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 Russian Alphabet Practice free?

Russian Alphabet Practice is free to download, with in-app purchases available.

### Is Kaltterra free?

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

### Do Russian Alphabet Practice or Kaltterra have ads?

Neither Russian Alphabet Practice nor Kaltterra shows ads.

### Which is updated more often, Russian Alphabet Practice or Kaltterra?

Russian Alphabet Practice ships an update every 11 months, and Kaltterra every 2 days. Most recently, Russian Alphabet Practice was updated on November 6, 2026 and Kaltterra on November 6, 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.*