# TopInfrared vs bmLogger

The clearest difference is review sentiment: bmLogger at 100% against TopInfrared's 40%. bmLogger also leads on rating (5.0 vs 3.5) and in-app purchases (none vs 1). TopInfrared's advantage is ratings volume (48 vs 4) and iOS requirement (12.0 vs 14.0). On price, ads and device support there is nothing between them.

Both are free to download. TopInfrared sells 1 one-off in-app purchase. bmLogger asks for nothing beyond the download.

bmLogger holds the better App Store score, 5.0 against 3.5. That said, the two scores are not equally well evidenced: TopInfrared has 48 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 40% of TopInfrared's written reviews are positive against 100% of bmLogger's.

TopInfrared ships an update every 3 weeks, bmLogger every 3 days. The most recent releases landed on October 14, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | TopInfrared | bmLogger |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (48 ratings)](https://appshunter.io/ios/app/topinfrared/id6452017744/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/bmlogger/id6654885355/reviews)** |
| Number of ratings | **48** | 4 |
| Positive reviews | 39.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 518 MB | 42 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [HK TOPDON TECHNOLOGY Co., LIMITED](https://appshunter.io/developer/1846276192) | [Blue Maestro](https://appshunter.io/developer/773672141) |

## What reviewers say

### TopInfrared

[App page](https://appshunter.io/ios/app/topinfrared/id6452017744)

This thermal imaging camera app provides high-resolution thermal images for precise temperature detection. It's ideal for inspecting insulation, examining electronics, and identifying heat loss with excellent accuracy and sensitivity.

**Highlights:** High-resolution thermal imaging (256x192), Precise temperature detection, Insulation inspection, Circuit board examination, High heat sensitivity (40mk), Low power consumption

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Features | $19.99 | one-time |


### 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


## Frequently asked questions

### Is TopInfrared free?

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

### Is bmLogger free?

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

### Which has better reviews, TopInfrared or bmLogger?

bmLogger is rated higher. TopInfrared averages 3.5 out of 5 from 48 ratings, while bmLogger averages 5.0 from 4 ratings.

### Do TopInfrared or bmLogger have ads?

Neither TopInfrared nor bmLogger shows ads.

### Which is updated more often, TopInfrared or bmLogger?

TopInfrared ships an update every 3 weeks, and bmLogger every 3 days. Most recently, TopInfrared was updated on October 14, 2026 and bmLogger on October 4, 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.*