# Colors vs x

The clearest difference is price: x at Free against Colors's $0.99. x also leads on in-app purchases (none vs 1) and update cadence (monthly vs every 19 months). On ads and device support there is nothing between them.

x is free to download; Colors costs $0.99 up front. Colors sells 1 one-off in-app purchase. x asks for nothing beyond the download.

Colors ships an update every 19 months, x monthly. The most recent releases landed on August 11, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Colors | x |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | — | 56.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 19 months | **Monthly** |
| Monetization | — | Free |
| Size | 12 MB | 282 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gerhard Lentschik](https://appshunter.io/developer/629988041) | [Kermi GmbH](https://appshunter.io/developer/879996391) |

## What reviewers say

### Colors

[App page](https://appshunter.io/ios/app/colors/id1493352845)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Advertising | $0.99 | one-time |


### x

[App page](https://appshunter.io/ios/app/x-center/id1531279688)

Control your heat pump system remotely with this app. Monitor performance, create custom scenes, and view statistics from anywhere. No extra hardware is needed to get started.

**Highlights:** Remote heat pump control, Comprehensive system monitoring, Customizable scenes, Statistics and overviews, Alarm and warning notifications, Dark and light mode

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Colors free?

Colors costs $0.99, and also offers in-app purchases.

### Is x free?

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

### Do Colors or x have ads?

Neither Colors nor x shows ads.

### Which is updated more often, Colors or x?

Colors ships an update every 19 months, and x monthly. Most recently, Colors was updated on August 11, 2026 and x on October 3, 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.*