# WS thermometer vs HeatMaster

The clearest difference is rating: HeatMaster at 5.0 against WS thermometer's 2.7. HeatMaster also leads on update cadence (every 3 days vs every 6 weeks). WS thermometer's advantage is ratings volume (15 vs 1) and iOS requirement (7.1 vs 17.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

HeatMaster holds the better App Store score, 5.0 against 2.7. That said, the two scores are not equally well evidenced: WS thermometer has 15 ratings behind it against 1, so its average is the more settled of the two.

WS thermometer ships an update every 6 weeks, HeatMaster every 3 days. The most recent releases landed on November 2, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | WS thermometer | HeatMaster |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (15 ratings)](https://appshunter.io/ios/app/ws-thermometer/id1086899108/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/heatmastercilico-thermometer/id6738163357/reviews)** |
| Number of ratings | **15** | 1 |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 days** |
| Monetization | Free | Free |
| Size | 37 MB | 5 MB |
| Requires iOS | **7.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Maverick Industries, Inc.](https://appshunter.io/developer/959429430) | [新胜 吴](https://appshunter.io/developer/895484226) |

## What reviewers say

### WS thermometer

[App page](https://appshunter.io/ios/app/ws-thermometer/id1086899108)

Monitor cooking temperatures with a Bluetooth-connected thermometer. Set custom temperatures, receive notifications when done, and track progress for multiple probes. Includes a four-channel timer for various cooking needs.

**Highlights:** Bluetooth thermometer connection, Real-time temperature monitoring, Customizable temperature presets, Cooking progress tracking, Notifications for target temperature, Four-channel timer with up/down count

**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 WS thermometer free?

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

### Is HeatMaster free?

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

### Which has better reviews, WS thermometer or HeatMaster?

HeatMaster is rated higher. WS thermometer averages 2.7 out of 5 from 15 ratings, while HeatMaster averages 5.0 from 1 ratings.

### Do WS thermometer or HeatMaster have ads?

Neither WS thermometer nor HeatMaster shows ads.

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

WS thermometer ships an update every 6 weeks, and HeatMaster every 3 days. Most recently, WS thermometer was updated on November 2, 2026 and HeatMaster on November 12, 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.*