# Caleffi Pipe Sizer vs VexMe

The clearest difference is in-app purchases: Caleffi Pipe Sizer at none against VexMe's 2. Caleffi Pipe Sizer also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.4). VexMe's advantage is update cadence (daily vs every 7 months). On price and ads there is nothing between them.

Both are free to download. VexMe sells 2 in-app purchases, starting at $3.99 per month. Caleffi Pipe Sizer asks for nothing beyond the download.

Caleffi Pipe Sizer ships an update every 7 months, VexMe daily. The most recent releases landed on November 2, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Caleffi Pipe Sizer | VexMe |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/caleffi-pipe-sizer/id1088928458/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Daily** |
| Monetization | Free | — |
| Size | 44 MB | 61 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Caleffi S.p.A](https://appshunter.io/developer/920722440) | [Romain Joulia](https://appshunter.io/developer/1874554809) |

## 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


### VexMe

[App page](https://appshunter.io/ios/app/vexme/id6816722148)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VexMe Premium | $3.99 | per month |
| VexMe Premium annuel | $34.99 | per year |


## Frequently asked questions

### Is Caleffi Pipe Sizer free?

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

### Is VexMe free?

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

### Do Caleffi Pipe Sizer or VexMe have ads?

Neither Caleffi Pipe Sizer nor VexMe shows ads.

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

Caleffi Pipe Sizer ships an update every 7 months, and VexMe daily. Most recently, Caleffi Pipe Sizer was updated on November 2, 2026 and VexMe on November 10, 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.*