Gear Ratio Calculator & RPMv1.1.1
Released September 14, 2026Major
iOS
What changed
- New featureLive gear ratio calculator with instant output RPM and mechanical advantage computation
- New featureSpeed/torque summary showing reduction vs. increase with exact multiplier
- Content24-gear reference catalog covering various gear types
- UXFilter and search functionality for the gear catalog
- New featureSaved setups feature to create, name, and annotate gear configurations
- Content6 built-in example setups for various mechanical applications
- UXFully offline functionality with no account or ads required
Original release notes
Version 1.1.1 • Live gear ratio calculator — driving teeth, driven teeth, and input RPM compute ratio, output RPM, and mechanical advantage instantly • Speed/torque summary showing reduction vs. increase with exact multiplier • 24-gear reference catalog spanning spur, helical, bevel, planetary, and worm gear types • Filter and search the gear catalog by type or keyword • Saved setups — create, name, annotate, and delete your own gear configurations • 6 built-in example setups covering bikes, industrial reducers, clocks, wind turbines, and worm drives • Fully offline — no account, no ads, no internet required