What's New

- Content adjustments
- Minor bug-fixes

App Description

Learn, interpret and inspect GD&T according to ISO 1101. This app describes a large range of definitions of geometric dimensioning and tolerancing and supports engineers and employees as a multimedia reference book. As part of operative education, this app shows relationships and makes it easier to understand the right handling of form and position tolerances in practice.
This app explains the most important definitions of GD&T and its interpretation by examples (straightness, roundness, flatness, cylindricity, profile of a line, parallelism, squareness, angularity, position, concentricity, symmetry, circular runout, …)
-25 animations
-Basic information
-Form tolerance
-Profile tolerance
-Position tolerance
-Orientation tolerance
-Runout tolerance

iPhone Screenshots

(click to enlarge)

GD&T screenshot 1 GD&T screenshot 2 GD&T screenshot 3 GD&T screenshot 4

App Changes

  • June 06, 2014 Initial release
  • August 05, 2014 New version 1.4
  • April 22, 2015 New version 1.5
  • May 02, 2015 New version 1.6
  • October 08, 2015 New version 2.0
  • October 17, 2015 New version 2.0.1
  • June 13, 2019 New version 2.0.5
  • October 21, 2019 New version 2.0.7
  • October 28, 2019 New version 2.0.8
  • September 16, 2023 New version 3.0.1