# Biological Code vs Unvergesslich

The clearest difference is update cadence: Biological Code at every 2 weeks against Unvergesslich's every 5 months. Biological Code also leads on 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. Biological Code sells 6 in-app purchases, starting at $29.99 per month and Unvergesslich sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Biological Code ships an update every 2 weeks, Unvergesslich every 5 months. The most recent releases landed on September 29, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Biological Code | Unvergesslich |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 5 months |
| Size | 132 MB | 58 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Mathaus Martin](https://appshunter.io/developer/1453544780) | [MEMO-MIND Brainproducts GmbH](https://appshunter.io/developer/1701413927) |

## What reviewers say

### Biological Code

[App page](https://appshunter.io/ios/app/biological-code/id1453544781)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Vollversion | $29.99 | per month |
| Organdatenbank, monatlich | $29.99 | per month |
| Biologischer Code | $0.99 | one-time |
| 15 Coach Guthaben | $5.99 | one-time |
| 45 Coach Guthaben | $11.99 | one-time |
| 120 Coach Guthaben | $49.99 | one-time |


### Unvergesslich

[App page](https://appshunter.io/ios/app/unvergesslich/id6458740011)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buch "Witz komm raus" | $22.99 | one-time |
| EINFACH - ALLES - MERKEN | $89.00 | one-time |


## Frequently asked questions

### Is Biological Code free?

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

### Is Unvergesslich free?

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

### Do Biological Code or Unvergesslich have ads?

Neither Biological Code nor Unvergesslich shows ads.

### Which is updated more often, Biological Code or Unvergesslich?

Biological Code ships an update every 2 weeks, and Unvergesslich every 5 months. Most recently, Biological Code was updated on September 29, 2026 and Unvergesslich on September 11, 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.*