# A3 vs Тэнгэрийн сургууль

The clearest difference is update cadence: A3 at every 5 days against Тэнгэрийн сургууль's monthly. Тэнгэрийн сургууль's advantage is iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

A3 ships an update every 5 days, Тэнгэрийн сургууль monthly. The most recent releases landed on September 26, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | A3 | Тэнгэрийн сургууль |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Monthly |
| Size | 46 MB | 49 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Batkhuyag Enkhtuwshin](https://appshunter.io/developer/1054319015) | [Khan Khulgun LLC](https://appshunter.io/developer/1549621655) |

## What reviewers say

### A3

[App page](https://appshunter.io/ios/app/a3-test/id6745817467)

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

**In-app purchases:** none


### Тэнгэрийн сургууль

[App page](https://appshunter.io/ios/app/id6780792259)

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

**In-app purchases:** none


## Frequently asked questions

### Is A3 free?

A3 is free to download, with no in-app purchases.

### Is Тэнгэрийн сургууль free?

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

### Do A3 or Тэнгэрийн сургууль have ads?

Neither A3 nor Тэнгэрийн сургууль shows ads.

### Which is updated more often, A3 or Тэнгэрийн сургууль?

A3 ships an update every 5 days, and Тэнгэрийн сургууль monthly. Most recently, A3 was updated on September 26, 2026 and Тэнгэрийн сургууль on September 27, 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.*