# CTSmall heat pump controller vs Mit Greentel

The clearest difference is update cadence: Mit Greentel at every 6 weeks against CTSmall heat pump controller's every 15 months. CTSmall heat pump controller's advantage is iOS requirement (7.0 vs 12.0). On price, ads, in-app purchases and device support there is nothing between them.

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

CTSmall heat pump controller ships an update every 15 months, Mit Greentel every 6 weeks. The most recent releases landed on September 14, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | CTSmall heat pump controller | Mit Greentel |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/ctsmall-heat-pump-controller/id868825104/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 11 MB | 32 MB |
| Requires iOS | **7.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Flemming Veng](https://appshunter.io/developer/868825107) | [MobileValue Aps](https://appshunter.io/developer/1156466365) |

## What reviewers say

### CTSmall heat pump controller

[App page](https://appshunter.io/ios/app/ctsmall-heat-pump-controller/id868825104)

Remotely manage your heat pump's temperature and settings from anywhere. Control heating, cooling, and even additional relay outputs like water heaters. Receive alerts and ensure your home is always at the desired temperature.

**Highlights:** Remote heat pump control, Temperature adjustment, Control of two relay outputs, Power guard functionality, Alarm output, Supports over 35 heat pump brands, Event system for custom actions

**Features:** macOS Compatibility

**In-app purchases:** none


### Mit Greentel

[App page](https://appshunter.io/ios/app/mit-greentel/id1600043646)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CTSmall heat pump controller free?

CTSmall heat pump controller is free to download, with no in-app purchases.

### Is Mit Greentel free?

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

### Do CTSmall heat pump controller or Mit Greentel have ads?

Neither CTSmall heat pump controller nor Mit Greentel shows ads.

### Which is updated more often, CTSmall heat pump controller or Mit Greentel?

CTSmall heat pump controller ships an update every 15 months, and Mit Greentel every 6 weeks. Most recently, CTSmall heat pump controller was updated on September 14, 2026 and Mit Greentel on June 1, 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.*