# MMK AR vs Beautiful Trigonometry

The clearest difference is in-app purchases: MMK AR at none against Beautiful Trigonometry's 1. MMK AR also leads on iOS requirement (13.0 vs 17.6). Beautiful Trigonometry's advantage is update cadence (every 3 months vs every 6 months). On price, ads and device support there is nothing between them.

Both are free to download. Beautiful Trigonometry sells 1 one-off in-app purchase. MMK AR asks for nothing beyond the download.

MMK AR ships an update every 6 months, Beautiful Trigonometry every 3 months. The most recent releases landed on October 3, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | MMK AR | Beautiful Trigonometry |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 months** |
| Size | 7 MB | 8 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Michal Piascik](https://appshunter.io/developer/1135979677) | [Tomasz Rygula](https://appshunter.io/developer/879228654) |

## What reviewers say

### MMK AR

[App page](https://appshunter.io/ios/app/mmk-ar/id1590326683)

**Features:** macOS Compatibility

**In-app purchases:** none


### Beautiful Trigonometry

[App page](https://appshunter.io/ios/app/beautiful-trigonometry/id6746460113)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Trigonometry Access | $1.99 | one-time |


## Frequently asked questions

### Is MMK AR free?

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

### Is Beautiful Trigonometry free?

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

### Do MMK AR or Beautiful Trigonometry have ads?

Neither MMK AR nor Beautiful Trigonometry shows ads.

### Which is updated more often, MMK AR or Beautiful Trigonometry?

MMK AR ships an update every 6 months, and Beautiful Trigonometry every 3 months. Most recently, MMK AR was updated on October 3, 2026 and Beautiful Trigonometry on September 18, 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.*