# Viessmann vs Sizing US/CA

The clearest difference is device support: Viessmann at 4 against Sizing US/CA's 2. On price, in-app purchases and iOS requirement there is nothing between them.

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

## The numbers

| Metric | Viessmann | Sizing US/CA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.2 (13 ratings)](https://appshunter.io/ios/app/sizing-usca/id1420112805/reviews)** |
| Number of ratings | — | **13** |
| Positive reviews | — | 11.1% of reviews |
| In-app purchases | No | No |
| Ads | — | Yes |
| Update frequency | — | Every 6 weeks |
| Monetization | — | Ad-supported |
| Size | 27 MB | 27 MB |
| Requires iOS | **9.0** | 10.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [desi9n sp z o. o.](https://appshunter.io/developer/673556818) | [Gastite Products LLC](https://appshunter.io/developer/668653608) |

## What reviewers say

### Viessmann

[App page](https://appshunter.io/ios/app/viessmann/id955144613)

**In-app purchases:** none


### Sizing US/CA

[App page](https://appshunter.io/ios/app/sizing-usca/id1420112805)

This utility app helps installers determine the correct size of flexible gas piping for their projects. It calculates the appropriate pipe size based on gas type, tubing length, supply pressure, and flow capacity. Users can also access installation guides and product information.

**Highlights:** Flexible gas pipe sizing, US and CA location selector, Automatic value adjustment, Certification card access, Installation guide viewer, Product search, Direct contact with developer

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Viessmann free?

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

### Is Sizing US/CA free?

Sizing US/CA is free to download, with no in-app purchases.

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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.*