# Btutu thermometer vs HeatMaster

The clearest difference is update cadence: HeatMaster at every 3 days against Btutu thermometer's weekly. Btutu thermometer's advantage is iOS requirement (9.0 vs 17.0). 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.

Btutu thermometer ships an update weekly, HeatMaster every 3 days. The most recent releases landed on October 27, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Btutu thermometer | HeatMaster |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/heatmastercilico-thermometer/id6738163357/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | — | Free |
| Size | 24 MB | 5 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [伟才 邓](https://appshunter.io/developer/893608406) | [新胜 吴](https://appshunter.io/developer/895484226) |

## What reviewers say

### Btutu thermometer

[App page](https://appshunter.io/ios/app/btutu-thermometer/id1507724198)

**Features:** macOS Compatibility

**In-app purchases:** none


### HeatMaster

[App page](https://appshunter.io/ios/app/heatmastercilico-thermometer/id6738163357)

This app provides real-time temperature monitoring for cooking, with customizable alerts and data logging. It supports dual-mode tracking for heating and cooling, with options for Celsius/Fahrenheit and CSV export.

**Highlights:** Dual-mode real-time temperature monitoring, Customizable target temperatures and alerts, Celsius/Fahrenheit unit switching, Automatic timestamped data logging, CSV data export, Bluetooth connectivity, Low battery notifications

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Btutu thermometer free?

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

### Is HeatMaster free?

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

### Do Btutu thermometer or HeatMaster have ads?

Neither Btutu thermometer nor HeatMaster shows ads.

### Which is updated more often, Btutu thermometer or HeatMaster?

Btutu thermometer ships an update weekly, and HeatMaster every 3 days. Most recently, Btutu thermometer was updated on October 27, 2026 and HeatMaster on October 9, 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.*