# MasterTherm vs Bubble Level

The clearest difference is in-app purchases: MasterTherm at none against Bubble Level's 1. MasterTherm also leads on ads (none vs shown). Bubble Level's advantage is update cadence (every 9 days vs every 9 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Bubble Level sells 1 one-off in-app purchase. MasterTherm asks for nothing beyond the download.

MasterTherm ships an update every 9 months, Bubble Level every 9 days. The most recent releases landed on October 15, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | MasterTherm | Bubble Level |
| --- | --- | --- |
| 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** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Every 9 days** |
| Monetization | Free | — |
| Size | 15 MB | 28 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Neoware s.r.o.](https://appshunter.io/developer/622404276) | [DIREKTA s.r.o.](https://appshunter.io/developer/6810129042) |

## 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


### Bubble Level

[App page](https://appshunter.io/ios/app/bubble-level-angle-and-tilt/id6812738407)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $2.99 | one-time |


## Frequently asked questions

### Is MasterTherm free?

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

### Is Bubble Level free?

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

### Do MasterTherm or Bubble Level have ads?

Bubble Level shows ads; MasterTherm does not.

### Which is updated more often, MasterTherm or Bubble Level?

MasterTherm ships an update every 9 months, and Bubble Level every 9 days. Most recently, MasterTherm was updated on October 15, 2026 and Bubble Level on October 25, 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.*