# Caleffi Pipe Sizer vs testo Thermography

The clearest difference is rating: Caleffi Pipe Sizer at 5.0 against testo Thermography's 3.0. Caleffi Pipe Sizer also leads on review sentiment (50% vs 31%). On price, ratings volume, update cadence and ads there is nothing between them.

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

Caleffi Pipe Sizer holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 50% of Caleffi Pipe Sizer's written reviews are positive against 31% of testo Thermography's.

Caleffi Pipe Sizer ships an update every 7 months, testo Thermography every 6 months. The most recent releases landed on October 2, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Caleffi Pipe Sizer | testo Thermography |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/caleffi-pipe-sizer/id1088928458/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/testo-thermography/id1123010537/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | **50.0% of reviews** | 31.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 6 months** |
| Monetization | Free | Free |
| Size | 44 MB | 63 MB |
| Requires iOS | 13.0 | 13 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Caleffi S.p.A](https://appshunter.io/developer/920722440) | [Testo SE & Co. KGaA](https://appshunter.io/developer/966489178) |

## What reviewers say

### Caleffi Pipe Sizer

[App page](https://appshunter.io/ios/app/caleffi-pipe-sizer/id1088928458)

This application assists hydraulic and HVAC professionals in accurately sizing water or air pipes. It calculates pressure drops and offers a modern, intuitive interface for precise system design on the go.

**Highlights:** Accurate water/air pipe sizing, Pressure drop calculation, Customizable technical parameter calculations, Extensive material and configuration library, Modern and intuitive interface, Enhanced performance

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Caleffi Pipe Sizer free?

Caleffi Pipe Sizer is free to download, with no in-app purchases.

### Is testo Thermography free?

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

### Which has better reviews, Caleffi Pipe Sizer or testo Thermography?

Caleffi Pipe Sizer is rated higher. Caleffi Pipe Sizer averages 5.0 out of 5 from 1 ratings, while testo Thermography averages 3.0 from 2 ratings.

### Do Caleffi Pipe Sizer or testo Thermography have ads?

Neither Caleffi Pipe Sizer nor testo Thermography shows ads.

### Which is updated more often, Caleffi Pipe Sizer or testo Thermography?

Caleffi Pipe Sizer ships an update every 7 months, and testo Thermography every 6 months. Most recently, Caleffi Pipe Sizer was updated on October 2, 2026 and testo Thermography on October 12, 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.*