UnderDrive
UnderDrive calculations
About
Calculate gear shifting parameters like speeds, final drive, and RPM drop for three-speed transmissions. It includes torque converter loss input and allows saving custom transmission setups for easy comparison of different gear ratios.
What's New in UnderDrive
1.1
September 17, 2026
Fixed a Dark Mode display issue where input values were not visible.
FAQ
What is the price of UnderDrive?
UnderDrive is a paid application priced at $9.99. This one-time purchase grants you access to all its features for calculating transmission parameters.
Does UnderDrive have ads?
No, UnderDrive does not contain advertisements. As a paid app, it offers an ad-free experience for users.
What devices does UnderDrive support?
UnderDrive is available for both iPhone and iPad devices. It is designed to run on Apple's mobile operating system.
How often is UnderDrive updated?
The latest version of UnderDrive is 1.1, which was last updated on September 17, 2026. Updates typically address bug fixes and feature enhancements.
What is the age rating for UnderDrive?
UnderDrive has an age rating of 4+, making it suitable for a wide range of users. This rating indicates minimal content concerns.
Can I save my transmission calculations in UnderDrive?
Yes, UnderDrive allows you to name, date, and save different transmission setups. This feature is useful for retrieving and comparing various configurations later.
What kind of transmissions does UnderDrive support?
UnderDrive is specifically set up for calculating parameters related to three-speed transmissions. It also includes an input for torque converter loss.