22+ iOS apps curated and reviewed
Sizing US/CA is the household name in gastite, but it's far from the only option. We track 22+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 3.2★ (13) | Yes | No | Oct 2026 | |
| 2 |  | Free | — | No | No | May 2026 | |
| 3 |  | Free | — | No | Yes | Oct 2026 | |
| 4 |  | Free | 2.0★ (1) | No | No | May 2026 | |
| 5 |  | Free | — | No | No | Oct 2026 | |
| 6 |  | Free | 4.1★ (19) | No | No | Oct 2026 | |
| 7 |  | Free | 3.6★ (63) | No | No | Oct 2026 | |
| 8 |  | Free | — | No | No | May 2026 |
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.
This app simplifies calculating the required size of Gastite® CSST for gas installations. Input gas type, CSST length, and appliance power to instantly determine the correct size. It offers easy navigation, user-friendly design, and access to FAQs and installation guides.
