250+ iOS apps & games curated and reviewed
Out of 250+ gammon api gravity calculator apps and games on iOS, 15 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | $9.99 | 4.0★ (8) | No | No | Jun 2026 | |
| 2 |  | $9.99 | 4.0★ (1) | No | No | Sep 2026 | |
| 3 |  | Free | 5.0★ (2) | No | No | May 2026 | |
| 4 |  | $2.99 | — | No | No | May 2026 | |
| 5 |  | $0.99 | — | — | No | Oct 2026 | |
| 6 |  | Free | — | No | No | May 2026 | |
| 7 |  | Free | — | No | Yes | Oct 2026 | |
| 8 |  | Free | — | Yes | Yes | Sep 2026 |
Calculate corrected API gravity for jet, gasoline, and diesel fuels at 60°F. This digital tool also determines the total weight of the fuel, replicating the functionality of physical slide calculators.
This application calculates the corrected API gravity at 60°F for jet, gasoline, and diesel fuels. It also determines the total weight of the fuel. It's a digital replacement for physical slide calculators.
Measure the G-force experienced in elevators or planes and compare it to planetary gravity. Record environmental photos, videos, and coordinates to save for later reference, and view G-values on a map.
