# ARTEfac vs Amino Acids Trainer

The clearest difference is in-app purchases: ARTEfac at none against Amino Acids Trainer's 1. ARTEfac also leads on iOS requirement (11.0 vs 17.6). Amino Acids Trainer's advantage is update cadence (monthly vs every 10 months). On price, ads and device support there is nothing between them.

Both are free to download. Amino Acids Trainer sells 1 one-off in-app purchase. ARTEfac asks for nothing beyond the download.

ARTEfac ships an update every 10 months, Amino Acids Trainer monthly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ARTEfac | Amino Acids Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/amino-acids-trainer/id6791918556/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Monthly** |
| Monetization | — | Free with in-app purchases |
| Size | 67 MB | 11 MB |
| Requires iOS | **11.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Aix Marseille Université](https://appshunter.io/developer/1449701057) | [Alexander Mehanic](https://appshunter.io/developer/1888807545) |

## What reviewers say

### ARTEfac

[App page](https://appshunter.io/ios/app/artefac/id1484050522)

**Features:** macOS Compatibility

**In-app purchases:** none


### Amino Acids Trainer

[App page](https://appshunter.io/ios/app/amino-acids-trainer/id6791918556)

Master the 20 proteinogenic amino acids with interactive quizzes covering structures, codes, properties, and formulas. Practice with various modes, difficulty levels, and timed exams. Track your progress and review mistakes to build confidence.

**Highlights:** Interactive amino acid training, Structure, code, and property quizzes, Multiple quiz modes, Adjustable difficulty levels, Timed exam mode, Detailed statistics and progress tracking, Review and bookmarking features

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $3.99 | one-time |


## Frequently asked questions

### Is ARTEfac free?

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

### Is Amino Acids Trainer free?

Amino Acids Trainer is free to download, with in-app purchases available.

### Do ARTEfac or Amino Acids Trainer have ads?

Neither ARTEfac nor Amino Acids Trainer shows ads.

### Which is updated more often, ARTEfac or Amino Acids Trainer?

ARTEfac ships an update every 10 months, and Amino Acids Trainer monthly. Most recently, ARTEfac was updated on November 3, 2026 and Amino Acids Trainer on October 31, 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.*