# Prometheus AI vs GefühlsKasper

The clearest difference is price: Prometheus AI at Free against GefühlsKasper's $9.99. GefühlsKasper's advantage is update cadence (every 2 days vs fortnightly) and iOS requirement (12.0 vs 17.5). On ads, in-app purchases and device support there is nothing between them.

Prometheus AI is free to download; GefühlsKasper costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Prometheus AI ships an update fortnightly, GefühlsKasper every 2 days. The most recent releases landed on October 7, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Prometheus AI | GefühlsKasper |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 days** |
| Size | 19 MB | 55 MB |
| Requires iOS | 17.5 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Max Osterried](https://appshunter.io/developer/1596062022) | [Cedric Lucien Marville](https://appshunter.io/developer/1599962223) |

## What reviewers say

### Prometheus AI

[App page](https://appshunter.io/ios/app/prometheus-ai/id6741356063)

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

**In-app purchases:** none


### GefühlsKasper

[App page](https://appshunter.io/ios/app/gefuhlskasper/id6743959834)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Prometheus AI free?

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

### Is GefühlsKasper free?

GefühlsKasper costs $9.99, with no in-app purchases.

### Do Prometheus AI or GefühlsKasper have ads?

Neither Prometheus AI nor GefühlsKasper shows ads.

### Which is updated more often, Prometheus AI or GefühlsKasper?

Prometheus AI ships an update fortnightly, and GefühlsKasper every 2 days. Most recently, Prometheus AI was updated on October 7, 2026 and GefühlsKasper 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.*