These calculators have been developed to help in the Setting up, Production and Checking of the gears available via the Ultrascale web site. Three of the main types of gears are covered, these are Worm gears, Helical gears and Spur gears. The flow of the app has been setup in such a way as to allow for the calculators to be used on a individual basis, using minimal information to output the basic data required, or as a complete process flow from start to finish. For example, starting at the worm then creating a matching worm wheel and then to output the base tangent data to allow the gear to be checked.

What’s New

Version 2.1.0

This app has been updated by Apple to display the Apple Watch app icon.

Updated help files
Fixed error check bug for helical and pressure angles (Data Entry)
Modified User Interface
Latest iOS

Ratings and Reviews

1.0 out of 5
1 Rating

1 Rating

App Privacy

The developer, SpiralArm Consulting Limited, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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