# GenR8 vs Chamii

The clearest difference is price: Chamii at Free against GenR8's $19.99. Chamii also leads on iOS requirement (15.0 vs 17.0). GenR8's advantage is update cadence (weekly vs every 4 weeks). On ads, in-app purchases and device support there is nothing between them.

Chamii is free to download; GenR8 costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

GenR8 ships an update weekly, Chamii every 4 weeks. The most recent releases landed on October 13, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | GenR8 | Chamii |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Rating | **[4.9 (9 ratings)](https://appshunter.io/ios/app/genr8/id6751822886/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 4 weeks |
| Monetization | Paid | — |
| Size | 21 MB | 49 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Christopher Van Hoose](https://appshunter.io/developer/1510007987) | [振瀚 王](https://appshunter.io/developer/1861360379) |

## What reviewers say

### GenR8

[App page](https://appshunter.io/ios/app/genr8/id6751822886)

Generate professional test patterns for display calibration and validation. Supports external displays, audio testing, and HDR signals. Ideal for video engineers, filmmakers, and content creators needing precise visual and audio analysis on the go.

**Highlights:** 28+ professional test patterns, External display support (USB-C, AirPlay), HDR pattern support, Audio test tones and live metering, Precision controls and customizable overlays, Export test patterns (PNG, PDF, JPG, TIFF)

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

**In-app purchases:** none


### Chamii

[App page](https://appshunter.io/ios/app/chamii/id6757855903)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GenR8 free?

GenR8 costs $19.99, with no in-app purchases.

### Is Chamii free?

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

### Do GenR8 or Chamii have ads?

Neither GenR8 nor Chamii shows ads.

### Which is updated more often, GenR8 or Chamii?

GenR8 ships an update weekly, and Chamii every 4 weeks. Most recently, GenR8 was updated on October 13, 2026 and Chamii on October 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*