250+ iOS apps curated and reviewed
iFLEXCSST is the household name in iflexcsst, but it's far from the only option. We track 250+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | — | No | No | May 2026 | |
| 2 |  | Free | 3.8★ (9) | No | No | Aug 2026 | |
| 3 |  | Free | 3.7★ (30) | No | No | Jul 2026 | |
| 4 |  | Free | 5.0★ (1) | No | No | May 2026 | |
| 5 |  | Free | 3.2★ (13) | Yes | No | May 2026 | |
| 6 |  | Free | — | No | Yes | May 2026 | |
| 7 |  | Free | 5.0★ (1) | Yes | No | Oct 2026 | |
| 8 |  | Free | — | No | No | May 2026 |
This application helps users calculate the correct size of flexible gas piping for installations. It supports various sizing methods and gas types, providing accurate results based on selected parameters. Users can also access updated design guides and installation instructions.
This app provides essential data and calculators for oil and gas well calculations. Access key dimensions, strengths, and specifications for tubulars to quickly determine volumes and capacities. Supports multiple unit systems for flexible calculations.
