# Gießen vs GASSI

The clearest difference is in-app purchases: Gießen at none against GASSI's 2. Gießen also leads on iOS requirement (13.0 vs 15.1). GASSI's advantage is update cadence (every 2 days vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. GASSI sells 2 in-app purchases, starting at $2.99 per month. Gießen asks for nothing beyond the download.

Gießen ships an update every 4 months, GASSI every 2 days. The most recent releases landed on October 19, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Gießen | GASSI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 days** |
| Size | 64 MB | 41 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Distama GmbH](https://appshunter.io/developer/1321351855) | [Fabian Welke](https://appshunter.io/developer/6778550150) |

## What reviewers say

### Gießen

[App page](https://appshunter.io/ios/app/gieen/id870098722)

**In-app purchases:** none


### GASSI

[App page](https://appshunter.io/ios/app/gassi-o/id6778550148)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monatsabo | $2.99 | per month |
| Jahresabo | $17.99 | per year |


## Frequently asked questions

### Is Gießen free?

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

### Is GASSI free?

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

### Do Gießen or GASSI have ads?

Neither Gießen nor GASSI shows ads.

### Which is updated more often, Gießen or GASSI?

Gießen ships an update every 4 months, and GASSI every 2 days. Most recently, Gießen was updated on October 19, 2026 and GASSI on October 5, 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.*