When upgrading to Gaia GPS v2.4 from an earlier version, the app may crash at start-up and delete all of your Gaia GPS data. At this point, you will also need to delete the app from your iPhone and reinstall, or you won’t be able to download maps and create other data.
The reason for this problem is we added a Notes field to the database in the app. When you change the database of an iPhone app, it can be tricky to get users’ phones to migrate data properly. It appears that migration for users with large maps saved is failing because the data doesn’t migrate fast enough.
We apologize if you experience this problem. Anyone who has not yet upgraded may wish to back up any important data saved in the app before updating.