# Amino Acids Trainer vs Munin

The clearest difference is update cadence: Munin at every 2 days against Amino Acids Trainer's monthly. Munin also leads on iOS requirement (15.1 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Amino Acids Trainer sells 1 one-off in-app purchase and Munin sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Amino Acids Trainer ships an update monthly, Munin every 2 days. The most recent releases landed on October 9, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Amino Acids Trainer | Munin |
| --- | --- | --- |
| 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 | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 11 MB | 43 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Alexander Mehanic](https://appshunter.io/developer/1888807545) | [Ivar Reukers](https://appshunter.io/developer/6794910435) |

## What reviewers say

### 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 |


### Munin

[App page](https://appshunter.io/ios/app/munin-general-knowledge/id6794910433)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Munin Monthly | $2.99 | per month |
| Munin Yearly | $29.99 | per year |


## Frequently asked questions

### Is Amino Acids Trainer free?

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

### Is Munin free?

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

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

Neither Amino Acids Trainer nor Munin shows ads.

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

Amino Acids Trainer ships an update monthly, and Munin every 2 days. Most recently, Amino Acids Trainer was updated on October 9, 2026 and Munin 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.*