This is the post for those, who uses MobileNoter on iPad.
We found that some users experience a problem upgrading to version 1.3.1 from the 1.3.0 version: the updated application crashes on startup. In such case you need to remove the application and install it from scratch.
If you haven’t updated yet, run the synchronization before the update to save your data.
We’ve already sent a fixed version (1.3.3) to the App Store, but it will be in review for some time.
Sorry for inconvenience.