# Үндэсний бичиг vs Cosmo

The clearest difference is in-app purchases: Үндэсний бичиг at none against Cosmo's 3. Cosmo's advantage is update cadence (weekly vs every 2 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Cosmo sells 3 one-off in-app purchases. Үндэсний бичиг asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Үндэсний бичиг against 5.0 for Cosmo. Both are backed by a comparable volume of ratings — 3 and 4 respectively.

Үндэсний бичиг ships an update every 2 months, Cosmo weekly. Both last shipped on November 3, 2026.

## The numbers

| Metric | Үндэсний бичиг | Cosmo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/id6446303390/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/cosmo-ai-english-tutor/id6463010413/reviews) |
| Number of ratings | 3 | **4** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 48 MB | 53 MB |
| Requires iOS | 14.0 | **13.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Mongolian Institute for Educational Research](https://appshunter.io/developer/1612441931) | [Michael Ganzorig](https://appshunter.io/developer/1496293708) |

## What reviewers say

### Үндэсний бичиг

[App page](https://appshunter.io/ios/app/id6446303390)

This app aims to teach Mongolian script to public servants, enabling them to draft, process, and manage official documents and use the script in digital environments. It offers a structured learning program with alphabet lessons, visual aids, quizzes, and video tutorials.

**Highlights:** Mongolian alphabet lessons, Visual learning aids, Quizzes for assessment, Video tutorials, Document drafting and processing skills, Digital script usage

**Features:** macOS Compatibility

**In-app purchases:** none


### Cosmo

[App page](https://appshunter.io/ios/app/cosmo-ai-english-tutor/id6463010413)

Practice English speaking and comprehension through interactive conversations with an AI tutor. Translate sentences, choose personalized topics, and use voice input for a hands-free experience. Supports 12 languages.

**Highlights:** AI-powered conversations, Sentence translation, Personalized topic selection, Voice input support, Supports 12 languages

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic | $0.99 | one-time |
| Plus | $1.99 | one-time |
| Pro | $3.99 | one-time |


## Frequently asked questions

### Is Үндэсний бичиг free?

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

### Is Cosmo free?

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

### Which has better reviews, Үндэсний бичиг or Cosmo?

Үндэсний бичиг and Cosmo are both rated 5.0 out of 5 on the App Store, from 3 and 4 ratings respectively.

### Do Үндэсний бичиг or Cosmo have ads?

Neither Үндэсний бичиг nor Cosmo shows ads.

### Which is updated more often, Үндэсний бичиг or Cosmo?

Үндэсний бичиг ships an update every 2 months, and Cosmo weekly. Most recently, Үндэсний бичиг was updated on November 3, 2026 and Cosmo 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.*