# TopInfrared vs OpenDXF

The clearest difference is ads: TopInfrared at none against OpenDXF's shown. TopInfrared also leads on iOS requirement (12.0 vs 17.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. TopInfrared sells 1 one-off in-app purchase and OpenDXF sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

TopInfrared ships an update every 3 weeks, OpenDXF every 5 weeks. The most recent releases landed on October 24, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | TopInfrared | OpenDXF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (52 ratings)](https://appshunter.io/ios/app/topinfrared/id6452017744/reviews)** | — |
| Number of ratings | **52** | — |
| Positive reviews | 39.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 518 MB | 6 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [HK TOPDON TECHNOLOGY Co., LIMITED](https://appshunter.io/developer/1846276192) | [Murat Karacam](https://appshunter.io/developer/1847055356) |

## 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 |


### OpenDXF

[App page](https://appshunter.io/ios/app/opendxf/id6759446001)

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is TopInfrared free?

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

### Is OpenDXF free?

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

### Do TopInfrared or OpenDXF have ads?

OpenDXF shows ads; TopInfrared does not.

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

TopInfrared ships an update every 3 weeks, and OpenDXF every 5 weeks. Most recently, TopInfrared was updated on October 24, 2026 and OpenDXF on October 15, 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.*