# 12th Grade Math Challenge vs Another Turing Machine

The clearest difference is price: 12th Grade Math Challenge at Free against Another Turing Machine's $1.99. 12th Grade Math Challenge also leads on iOS requirement (13.0 vs 18.2). Another Turing Machine's advantage is in-app purchases (none vs 1) and update cadence (daily vs every 11 months). On ads and device support there is nothing between them.

12th Grade Math Challenge is free to download; Another Turing Machine costs $1.99 up front. 12th Grade Math Challenge sells 1 one-off in-app purchase. Another Turing Machine asks for nothing beyond the download.

12th Grade Math Challenge ships an update every 11 months, Another Turing Machine daily. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 12th Grade Math Challenge | Another Turing Machine |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/12th-grade-math-challenge/id1626192903/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 11 months | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 34 MB | 1 MB |
| Requires iOS | **13.0** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | +4 |
| Developer | [IT365 Solutions Inc](https://appshunter.io/developer/1531416759) | [Stefan JOSTEN](https://appshunter.io/developer/949662361) |

## What reviewers say

### 12th Grade Math Challenge

[App page](https://appshunter.io/ios/app/12th-grade-math-challenge/id1626192903)

Test your knowledge with 12th-grade level math problems and puzzles. Track your progress, challenge friends, and earn a certificate of your final score. Step-by-step solutions are available for better understanding.

**Highlights:** 12th-grade math questions, Math puzzles, Score certificates, Challenge friends, Step-by-step solutions

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove all Ads from Math 12 | $0.99 | one-time |


### Another Turing Machine

[App page](https://appshunter.io/ios/app/another-turing-machine/id6742148242)

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

**In-app purchases:** none


## Frequently asked questions

### Is 12th Grade Math Challenge free?

12th Grade Math Challenge is free to download, with in-app purchases available.

### Is Another Turing Machine free?

Another Turing Machine costs $1.99, with no in-app purchases.

### Do 12th Grade Math Challenge or Another Turing Machine have ads?

Neither 12th Grade Math Challenge nor Another Turing Machine shows ads.

### Which is updated more often, 12th Grade Math Challenge or Another Turing Machine?

12th Grade Math Challenge ships an update every 11 months, and Another Turing Machine daily. Most recently, 12th Grade Math Challenge was updated on October 30, 2026 and Another Turing Machine on October 28, 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.*