# HJM vs Color

The clearest difference is in-app purchases: HJM at none against Color's 1. HJM also leads on iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

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

## The numbers

| Metric | HJM | Color |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 42.9% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | Free | — |
| Size | 30 MB | 166 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hermanos Julian M S.L.](https://appshunter.io/developer/1367547773) | [建辉 梁](https://appshunter.io/developer/1031819493) |

## What reviewers say

### HJM

[App page](https://appshunter.io/ios/app/hjm/id1367547774)

Manage your smart radiator temperatures easily and quickly from your smartphone. Adjust heating remotely without being at home, ensuring comfort and efficiency.

**Highlights:** Remote temperature management, Smart radiator control, Easy and quick adjustments, Smartphone access, Energy efficiency

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

**In-app purchases:** none


### Color

[App page](https://appshunter.io/ios/app/color-joy/id6761195180)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock ALL articles | $2.99 | one-time |


## Frequently asked questions

### Is HJM free?

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

### Is Color free?

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

### Do HJM or Color have ads?

Neither HJM nor Color shows ads.

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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.*