This application simplifies driveline setup and predicts performance changes from gear ratios and tire size. It offers tools to calculate vehicle speed and RPM variables, aiding in rig planning and performance expectation.




90+ iOS apps curated and reviewed
With an average user rating of 4.0★, the driveline angle category is one of the App Store's strongest. Browse all 90+ apps we track, sorted so the most loved ones surface first.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 3.3★ (3) | No | No | May 2026 | ||
| 2 | Free | 5.0★ (1) | No | No | Aug 2026 | ||
| 3 | Free | 4.0★ (2) | No | No | May 2026 | ||
| 4 | Free | 4.4★ (295) | Yes | No | Sep 2026 | ||
| 5 | $3.99 | 5.0★ (1) | No | No | Aug 2026 | ||
| 6 | $9.99 | — | No | No | Jul 2026 | ||
| 7 | Free | 3.0★ (1) | No | No | Aug 2026 | ||
| 8 | Free | — | No | No | May 2026 |




This application simplifies driveline setup and predicts performance changes from gear ratios and tire size. It offers tools to calculate vehicle speed and RPM variables, aiding in rig planning and performance expectation.






This utility app transforms your iPhone into a live inclinometer, displaying pitch and roll angles simultaneously for easy reading. It provides customizable warnings with visual and haptic feedback as you approach or exceed set limits. Designed for off-road enthusiasts, it offers a clear, glanceable view of your vehicle's tilt without needing GPS or an internet connection.





Perform a variety of calculations related to vehicle drivelines and engines. This tool helps users get the most out of genuine Spicer parts with specialized calculators for RPM, fuel savings, and more.