# MasterTherm vs DEAuser

The clearest difference is update cadence: DEAuser at every 2 months against MasterTherm's every 9 months. 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.

MasterTherm ships an update every 9 months, DEAuser every 2 months. The most recent releases landed on September 30, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | MasterTherm | DEAuser |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mastertherm/id622404273/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 15 MB | 22 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Neoware s.r.o.](https://appshunter.io/developer/622404276) | [DEASYSTEM SPA](https://appshunter.io/developer/1157501693) |

## What reviewers say

### MasterTherm

[App page](https://appshunter.io/ios/app/mastertherm/id622404273)

Remotely monitor and control your MasterTherm heat pump from your iPhone or iPad. Adjust operating modes, set temperatures, manage heating circuits, and even view weather forecasts for your location.

**Highlights:** Remote heat pump status monitoring, Control operation mode and temperature, Setup weather compensation, On/Off switching, Monitor heating circuits, View weather forecast

**Features:** macOS Compatibility

**In-app purchases:** none


### DEAuser

[App page](https://appshunter.io/ios/app/deauser/id6741229419)

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

**In-app purchases:** none


## Frequently asked questions

### Is MasterTherm free?

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

### Is DEAuser free?

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

### Do MasterTherm or DEAuser have ads?

Neither MasterTherm nor DEAuser shows ads.

### Which is updated more often, MasterTherm or DEAuser?

MasterTherm ships an update every 9 months, and DEAuser every 2 months. Most recently, MasterTherm was updated on September 30, 2026 and DEAuser on October 8, 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.*