# CTSmall heat pump controller vs Blend by Cobblestone

The clearest difference is update cadence: Blend by Cobblestone at fortnightly against CTSmall heat pump controller's every 15 months. CTSmall heat pump controller's advantage is iOS requirement (7.0 vs 15.0). 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, Blend by Cobblestone fortnightly. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | CTSmall heat pump controller | Blend by Cobblestone |
| --- | --- | --- |
| 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 | **Fortnightly** |
| Monetization | Free | — |
| Size | 11 MB | 66 MB |
| Requires iOS | **7.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [Flemming Veng](https://appshunter.io/developer/868825107) | [Evryone ApS](https://appshunter.io/developer/1149393205) |

## 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


### Blend by Cobblestone

[App page](https://appshunter.io/ios/app/blend-by-cobblestone/id6478753765)

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

**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 Blend by Cobblestone free?

Blend by Cobblestone is free to download, with no in-app purchases.

### Do CTSmall heat pump controller or Blend by Cobblestone have ads?

Neither CTSmall heat pump controller nor Blend by Cobblestone shows ads.

### Which is updated more often, CTSmall heat pump controller or Blend by Cobblestone?

CTSmall heat pump controller ships an update every 15 months, and Blend by Cobblestone fortnightly. Most recently, CTSmall heat pump controller was updated on November 1, 2026 and Blend by Cobblestone on November 4, 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.*