# IceWatcher vs HeatPump23

The clearest difference is update cadence: HeatPump23 at monthly against IceWatcher's every 10 months. IceWatcher's advantage is iOS requirement (12.0 vs 15.6). 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.

IceWatcher ships an update every 10 months, HeatPump23 monthly. The most recent releases landed on September 8, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | IceWatcher | HeatPump23 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Monthly** |
| Size | 17 MB | 36 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Biolovision Sàrl](https://appshunter.io/developer/1175280267) | [HeatPump23 GmbH](https://appshunter.io/developer/1833480836) |

## What reviewers say

### IceWatcher

[App page](https://appshunter.io/ios/app/icewatcher/id1575465367)

**In-app purchases:** none


### HeatPump23

[App page](https://appshunter.io/ios/app/heatpump23/id6751113685)

**In-app purchases:** none


## Frequently asked questions

### Is IceWatcher free?

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

### Is HeatPump23 free?

HeatPump23 is free to download, with no in-app purchases.

### Do IceWatcher or HeatPump23 have ads?

Neither IceWatcher nor HeatPump23 shows ads.

### Which is updated more often, IceWatcher or HeatPump23?

IceWatcher ships an update every 10 months, and HeatPump23 monthly. Most recently, IceWatcher was updated on September 8, 2026 and HeatPump23 on September 10, 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.*