# ColorMeter vs CTGauge

ColorMeter and CTGauge are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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, CTGauge every 2 months. The most recent releases landed on August 17, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | ColorMeter | CTGauge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.7 (7 ratings)](https://appshunter.io/ios/app/colormeter/id1502363418/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 41.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Free | — |
| Size | 111 MB | 25 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [坤 杨](https://appshunter.io/developer/1590949449) | [Shenzhen Linshang Technology Co., Ltd.](https://appshunter.io/developer/1546040319) |

## 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


### CTGauge

[App page](https://appshunter.io/ios/app/ctgauge/id6450739989)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ColorMeter free?

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

### Is CTGauge free?

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

### Do ColorMeter or CTGauge have ads?

Neither ColorMeter nor CTGauge shows ads.

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

ColorMeter ships an update every 5 weeks, and CTGauge every 2 months. Most recently, ColorMeter was updated on August 17, 2026 and CTGauge on September 9, 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.*