# testo Thermography vs ToolStack

The clearest difference is in-app purchases: testo Thermography at none against ToolStack's 1. testo Thermography also leads on iOS requirement (13 vs 16.6). ToolStack's advantage is update cadence (every 2 months vs every 6 months). On price, ads and device support there is nothing between them.

Both are free to download. ToolStack sells 1 in-app purchase, starting at $4.99 per month. testo Thermography asks for nothing beyond the download.

testo Thermography ships an update every 6 months, ToolStack every 2 months. The most recent releases landed on September 27, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | testo Thermography | ToolStack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/testo-thermography/id1123010537/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 31.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 63 MB | 54 MB |
| Requires iOS | **13** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Testo SE & Co. KGaA](https://appshunter.io/developer/966489178) | [Advanced Web Concepts Ltd](https://appshunter.io/developer/1106881054) |

## 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


### ToolStack

[App page](https://appshunter.io/ios/app/toolstack/id6746410132)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ToolStack Monthly | $4.99 | per month |


## Frequently asked questions

### Is testo Thermography free?

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

### Is ToolStack free?

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

### Do testo Thermography or ToolStack have ads?

Neither testo Thermography nor ToolStack shows ads.

### Which is updated more often, testo Thermography or ToolStack?

testo Thermography ships an update every 6 months, and ToolStack every 2 months. Most recently, testo Thermography was updated on September 27, 2026 and ToolStack on September 16, 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.*