# bmLogger vs Temp Master

The clearest difference is review sentiment: bmLogger at 100% against Temp Master's 40%. bmLogger also leads on rating (5.0 vs 3.2) and update cadence (every 3 days vs every 5 weeks). Temp Master's advantage is ratings volume (12 vs 4) and iOS requirement (11.0 vs 14.0). 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.

bmLogger holds the better App Store score, 5.0 against 3.2. Both are backed by a comparable volume of ratings — 4 and 12 respectively. Written reviews point the same way: 100% of bmLogger's written reviews are positive against 40% of Temp Master's.

bmLogger ships an update every 3 days, Temp Master every 5 weeks. The most recent releases landed on October 4, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | bmLogger | Temp Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/bmlogger/id6654885355/reviews)** | [3.2 (12 ratings)](https://appshunter.io/ios/app/temp-master/id6737321665/reviews) |
| Number of ratings | 4 | **12** |
| Positive reviews | **100.0% of reviews** | 40.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 5 weeks |
| Monetization | Free | Free |
| Size | 42 MB | 43 MB |
| Requires iOS | 14.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Blue Maestro](https://appshunter.io/developer/773672141) | [Thermal Master Technology Co.,Ltd.](https://appshunter.io/developer/1770222118) |

## What reviewers say

### bmLogger

[App page](https://appshunter.io/ios/app/bmlogger/id6654885355)

This app connects to Bluetooth sensors to provide real-time temperature and humidity monitoring. It allows for data logging, historical analysis, and customizable alerts for various environmental conditions. Ideal for cold chain compliance, food safety, and climate control.

**Highlights:** Real-time temperature and humidity readings, Data logging and historical graphs, CSV data export, Multiple sensor connection, Customizable alerts, Offline functionality

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

**In-app purchases:** none


### Temp Master

[App page](https://appshunter.io/ios/app/temp-master/id6737321665)

This utility app enhances thermal imaging capabilities for compatible Thermal Master devices, offering precise temperature detection and advanced image analysis. It allows users to view, save, and export thermal data offline, with features like digital zoom and improved resolution for various inspection tasks.

**Highlights:** High-accuracy temperature detection, Enhanced infrared resolution, Offline data viewing and export, Up to 15x digital zoom, Reduced background noise, Long battery life optimization

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is bmLogger free?

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

### Is Temp Master free?

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

### Which has better reviews, bmLogger or Temp Master?

bmLogger is rated higher. bmLogger averages 5.0 out of 5 from 4 ratings, while Temp Master averages 3.2 from 12 ratings.

### Do bmLogger or Temp Master have ads?

Neither bmLogger nor Temp Master shows ads.

### Which is updated more often, bmLogger or Temp Master?

bmLogger ships an update every 3 days, and Temp Master every 5 weeks. Most recently, bmLogger was updated on October 4, 2026 and Temp Master on October 1, 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.*