# testo Thermography vs Appion Central

The clearest difference is update cadence: Appion Central at every 5 weeks against testo Thermography's every 6 months. Appion Central also leads on ratings volume (14 vs 2). testo Thermography's advantage is rating (3.0 vs 2.8). On price, review sentiment, ads and in-app purchases there is nothing between them.

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

testo Thermography holds the better App Store score, 3.0 against 2.8. That said, the two scores are not equally well evidenced: Appion Central has 14 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 31% of testo Thermography's written reviews are positive against 29% of Appion Central's.

testo Thermography ships an update every 6 months, Appion Central every 5 weeks. The most recent releases landed on October 29, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | testo Thermography | Appion Central |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/testo-thermography/id1123010537/reviews)** | [2.8 (14 ratings)](https://appshunter.io/ios/app/appion-central/id1455230837/reviews) |
| Number of ratings | 2 | **14** |
| Positive reviews | **31.3% of reviews** | 28.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 63 MB | 35 MB |
| Requires iOS | 13 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Testo SE & Co. KGaA](https://appshunter.io/developer/966489178) | [Appion Inc.](https://appshunter.io/developer/978979622) |

## What reviewers say

### testo Thermography

[App page](https://appshunter.io/ios/app/testo-thermography/id1123010537)

This free application enhances the functionality of specific testo thermal imagers. It allows users to view live images, remotely control the device, and transfer stored images for analysis and report creation. Reports and images can be easily shared via email or cloud services.

**Highlights:** Live thermal imager view, Remote device control, Image and data transmission, Thermal image analysis, Report creation, Email and cloud sharing

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

**In-app purchases:** none


### Appion Central

[App page](https://appshunter.io/ios/app/appion-central/id1455230837)

Manage your HVAC tools and connect to the web portal. This app provides a mobile interface for your Appion products.

**Highlights:** Manage Appion products, Interface with Appion Portal, Mobile tool management

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is testo Thermography free?

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

### Is Appion Central free?

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

### Which has better reviews, testo Thermography or Appion Central?

testo Thermography is rated higher. testo Thermography averages 3.0 out of 5 from 2 ratings, while Appion Central averages 2.8 from 14 ratings.

### Do testo Thermography or Appion Central have ads?

Neither testo Thermography nor Appion Central shows ads.

### Which is updated more often, testo Thermography or Appion Central?

testo Thermography ships an update every 6 months, and Appion Central every 5 weeks. Most recently, testo Thermography was updated on October 29, 2026 and Appion Central on October 19, 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.*