# ColorMeter vs Authmeister

The clearest difference is iOS requirement: ColorMeter at 11.0 against Authmeister's 15.3. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ColorMeter ships an update every 5 weeks, Authmeister every 3 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ColorMeter | Authmeister |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.9 (8 ratings)](https://appshunter.io/ios/app/colormeter/id1502363418/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 41.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 111 MB | 91 MB |
| Requires iOS | **11.0** | 15.3 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [坤 杨](https://appshunter.io/developer/1590949449) | [Ivan Kopylov](https://appshunter.io/developer/1798070188) |

## What reviewers say

### ColorMeter

[App page](https://appshunter.io/ios/app/colormeter/id1502363418)

Connects to a colorimeter via Bluetooth to capture and analyze color data. It measures various color parameters, compares colors using different formulas, and allows for storage and retrieval of color data.

**Highlights:** Bluetooth colorimeter connection, Color data capture and analysis, Multiple color parameter measurements, Color comparison with various formulas, Color data storage and database, Color lookup and matching

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

**In-app purchases:** none


### Authmeister

[App page](https://appshunter.io/ios/app/authmeister/id6742833866)

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is ColorMeter free?

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

### Is Authmeister free?

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

### Do ColorMeter or Authmeister have ads?

Neither ColorMeter nor Authmeister shows ads.

### Which is updated more often, ColorMeter or Authmeister?

ColorMeter ships an update every 5 weeks, and Authmeister every 3 weeks. Most recently, ColorMeter was updated on October 24, 2026 and Authmeister on October 25, 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.*