We are aware of the problem with the updated version of Device Tracker 1.1. Please do not delete the app from your device as your data may still be there. The database is in a file stored inside the ipa file. If you delete the app you also delete the database. The bug seems to affect the iPad version only.

We are working on a fixed version and will have it available shortly.

There should be a way to recover Device Tracker 1.0 from your Mac or Windows backup. If you have been backing up your Mac and iTunes Music folder (where the apps are,) then you may be able to restore your “Device Tracker.ipa” file to that location (untested.) The next time you sync your data may come back. If you need instructions send us an email – from the Contact Us link above.