# Mental Abacus Book 3 vs Learn Mongolian

The clearest difference is price: Learn Mongolian at Free against Mental Abacus Book 3's $8.99. Mental Abacus Book 3's advantage is in-app purchases (none vs 1) and iOS requirement (8.0 vs 15.1). On update cadence, ads and device support there is nothing between them.

Learn Mongolian is free to download; Mental Abacus Book 3 costs $8.99 up front. Learn Mongolian sells 1 one-off in-app purchase. Mental Abacus Book 3 asks for nothing beyond the download.

Mental Abacus Book 3 ships an update every 20 months, Learn Mongolian every 16 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Mental Abacus Book 3 | Learn Mongolian |
| --- | --- | --- |
| Price | $8.99 | **Free** |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/learn-mongolian/id6448808097/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 16 months** |
| Monetization | — | Free |
| Size | 13 MB | 37 MB |
| Requires iOS | **8.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hamster Force Multimedia Ltd.](https://appshunter.io/developer/443416476) | [Ghumman Tech LLC](https://appshunter.io/developer/1671347750) |

## What reviewers say

### Mental Abacus Book 3

[App page](https://appshunter.io/ios/app/mental-abacus-book-3/id1054868136)

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

**In-app purchases:** none


### Learn Mongolian

[App page](https://appshunter.io/ios/app/learn-mongolian/id6448808097)

This application helps users learn the Mongolian language through interactive study modes and quizzes. It supports a wide range of native languages and offers features like text-to-speech audio, bookmarking, and progress tracking to facilitate conversational fluency.

**Highlights:** Supports numerous native languages, Text-to-speech audio functionality, Interactive quizzes, Study mode with flashcards, Progress indicators, Customizable flashcards with audio/images

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Features | $9.99 | one-time |


## Frequently asked questions

### Is Mental Abacus Book 3 free?

Mental Abacus Book 3 costs $8.99, with no in-app purchases.

### Is Learn Mongolian free?

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

### Do Mental Abacus Book 3 or Learn Mongolian have ads?

Neither Mental Abacus Book 3 nor Learn Mongolian shows ads.

### Which is updated more often, Mental Abacus Book 3 or Learn Mongolian?

Mental Abacus Book 3 ships an update every 20 months, and Learn Mongolian every 16 months. Most recently, Mental Abacus Book 3 was updated on November 6, 2026 and Learn Mongolian on November 3, 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.*