# Нарны Аймаг vs MUST PROFESSOR

The clearest difference is update cadence: MUST PROFESSOR at monthly against Нарны Аймаг's every 18 months. Нарны Аймаг's advantage is iOS requirement (13.0 vs 15.6). 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.

Нарны Аймаг ships an update every 18 months, MUST PROFESSOR monthly. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Нарны Аймаг | MUST PROFESSOR |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Monthly** |
| Size | 172 MB | 24 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Batzorig Nyamdeleg](https://appshunter.io/developer/1048907258) | [batjargal chuluunkhuu](https://appshunter.io/developer/1538719237) |

## What reviewers say

### Нарны Аймаг

[App page](https://appshunter.io/ios/app/id1541809720)

**Features:** macOS Compatibility

**In-app purchases:** none


### MUST PROFESSOR

[App page](https://appshunter.io/ios/app/must-professor/id1556175407)

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

**In-app purchases:** none


## Frequently asked questions

### Is Нарны Аймаг free?

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

### Is MUST PROFESSOR free?

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

### Do Нарны Аймаг or MUST PROFESSOR have ads?

Neither Нарны Аймаг nor MUST PROFESSOR shows ads.

### Which is updated more often, Нарны Аймаг or MUST PROFESSOR?

Нарны Аймаг ships an update every 18 months, and MUST PROFESSOR monthly. Most recently, Нарны Аймаг was updated on October 25, 2026 and MUST PROFESSOR on October 24, 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.*