An issue has been found in which MotiFIT Run and MotiFIT Ride 3.3.1 crash upon attempting to start a session. We have found a solution and are submitting an urgent patched release to Apple on April 12, 2017.
Please email email@example.com to join TestFlight and get an early version of the patched released.
UPDATE: Version 3.3.2 has been released to the App Store on April 13th, 2017 in order to resolve this issue. To download this update, simply open the App Store app on your device and tap on UPDATES tab at the bottom right.