# glrkgl vs caTTho

The clearest difference is in-app purchases: glrkgl at none against caTTho's 1. glrkgl also leads on device support (4 vs 2) and iOS requirement (12.0 vs 26.0). caTTho's advantage is update cadence (every 7 months vs every 55 months). On price and ads there is nothing between them.

Both are free to download. caTTho sells 1 one-off in-app purchase. glrkgl asks for nothing beyond the download.

glrkgl ships an update every 55 months, caTTho every 7 months. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | glrkgl | caTTho |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/glrkgl/id955099553/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 55 months | **Every 7 months** |
| Monetization | Free | — |
| Size | 9 MB | 13 MB |
| Requires iOS | **12.0** | 26.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Greg Kufera](https://appshunter.io/developer/955099552) | [Vlastimil Stefl](https://appshunter.io/developer/1447495739) |

## What reviewers say

### glrkgl

[App page](https://appshunter.io/ios/app/glrkgl/id955099553)

This application allows users to create robot noises using their phone. It aims to disrupt conversations with unique sound effects. Simply touch and dance to generate robot sounds.

**Highlights:** Robot noise generation, Interactive sound creation, Conversation disruption tool, Touch-based controls, Dance integration

**In-app purchases:** none


### caTTho

[App page](https://appshunter.io/ios/app/cattho/id1559044904)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium fatures | $0.99 | one-time |


## Frequently asked questions

### Is glrkgl free?

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

### Is caTTho free?

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

### Do glrkgl or caTTho have ads?

Neither glrkgl nor caTTho shows ads.

### Which is updated more often, glrkgl or caTTho?

glrkgl ships an update every 55 months, and caTTho every 7 months. Most recently, glrkgl was updated on November 1, 2026 and caTTho on October 30, 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.*