AutoTech 4+

Steven Clarner

Designed for iPhone

    • $1.99

iPhone Screenshots


AutoTech is an automotive calculator that offers the mechanic, technician or enthusiast quick computation of 45+ formulas in the areas of aerodynamics, chassis, drivetrain, engine, performance, suspension, and tires. Supports both U.S. and metric units.

What’s New

Version 1.5

New Drivetrain Calculation:
- RPM (from speed, axle gear ratio, transmission gear ratio, and tire diameter)

New Engine Calculations:
- Valve Spring Open Pressure
- Valve Spring Rate

Fixed an issue in the Unit Converter where Weight was not being shown as an option.

App Privacy

The developer, Steven Clarner, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

More By This Developer

You Might Also Like