# Color Temperature Meter+ vs calibratr

The clearest difference is review sentiment: Color Temperature Meter+ at 50% against calibratr's 0%. Color Temperature Meter+ also leads on rating (3.7 vs 1.0) and in-app purchases (none vs 1). calibratr's advantage is ads (none vs shown) and update cadence (daily vs every 4 days). On price, device support and iOS requirement there is nothing between them.

Both are free to download. calibratr sells 1 one-off in-app purchase. Color Temperature Meter+ asks for nothing beyond the download.

Color Temperature Meter+ holds the better App Store score, 3.7 against 1.0. That said, the two scores are not equally well evidenced: Color Temperature Meter+ has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 50% of Color Temperature Meter+'s written reviews are positive against 0% of calibratr's.

Color Temperature Meter+ ships an update every 4 days, calibratr daily. The most recent releases landed on November 13, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Color Temperature Meter+ | calibratr |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (6 ratings)](https://appshunter.io/ios/app/color-temperature-meter-plus/id6760257870/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/calibratr/id6811932396/reviews) |
| Number of ratings | **6** | 1 |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 days | **Daily** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 92 MB | 9 MB |
| Requires iOS | 16.4 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 12+ |
| Developer | [Kyu-Hee Jang](https://appshunter.io/developer/1587578867) | [FreshX GmbH](https://appshunter.io/developer/1532201833) |

## What reviewers say

### Color Temperature Meter+

[App page](https://appshunter.io/ios/app/color-temperature-meter-plus/id6760257870)

This app measures the color temperature of ambient light in Kelvin and tint using your device's camera. It helps photographers match white balance and choose lighting gels by providing readings, light types, and comparisons to common light sources. Save and export your measurements for later use.

**Highlights:** Measures Kelvin and tint, Identifies light types, Suggests camera white balance presets, Calculates mired shift for photography, Saves and exports readings, Compares to reference light sources

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

**In-app purchases:** none


### calibratr

[App page](https://appshunter.io/ios/app/calibratr/id6811932396)

This tool transforms your iPhone into a display measuring instrument, ensuring your photos appear as intended. It works with a free Mac app to calibrate your monitor, correcting color inaccuracies and providing detailed reports on display performance. Without a Mac, it functions as a light meter for various glowing surfaces.

**Highlights:** Monitor calibration using iPhone, RAW measurement of color patches, ICC color profile generation, White point, grey balance, and tone curve correction, Before and after image comparison, Light meter for glowing surfaces

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Keep the result | $3.99 | one-time |


## Frequently asked questions

### Is Color Temperature Meter+ free?

Color Temperature Meter+ is free to download, with no in-app purchases.

### Is calibratr free?

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

### Which has better reviews, Color Temperature Meter+ or calibratr?

Color Temperature Meter+ is rated higher. Color Temperature Meter+ averages 3.7 out of 5 from 6 ratings, while calibratr averages 1.0 from 1 ratings.

### Do Color Temperature Meter+ or calibratr have ads?

Color Temperature Meter+ shows ads; calibratr does not.

### Which is updated more often, Color Temperature Meter+ or calibratr?

Color Temperature Meter+ ships an update every 4 days, and calibratr daily. Most recently, Color Temperature Meter+ was updated on November 13, 2026 and calibratr on October 31, 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.*