From the Ludeca website:
We are proud to release a new version of our “Laser Align” mobile application. The app is available in the iTunes Store for both iPhone and iPad; as well as in Google Play for Android. The application now has an interactive Tolerance Table, where the user can input his own machine RPM and the app will kick back the respective Alignment Tolerances for both short flex and spacer type couplings. It also includes a Thermal Growth Calculator and now has a Soft Foot Assistant to help the user interpret soft foot values.
The app is available everywhere for FREE. Download now.