Note that a competitor to VanMoof, Cowboy Bikes, have also created an iOS app - with a beta on the App Store - that supposedly does the same (saving the encryption keys locally).
I say supposedly because the source is not available to inspect. However, the linked FAQ states that no data is stored outside the app.
(Note this is not en endorsement for Cowboy - whom I know nothing about - just pointing to the currently only iOS app I know of to save these same encryption keys for VanMoof owners).
I say supposedly because the source is not available to inspect. However, the linked FAQ states that no data is stored outside the app.
Here it is: https://bikey-app.cowboy.bike/
(Note this is not en endorsement for Cowboy - whom I know nothing about - just pointing to the currently only iOS app I know of to save these same encryption keys for VanMoof owners).