I uninstalled the app and it deleted all my work!

When it comes to the mobile (Android/iOS) versions of MediBang Paint, if the data is not stored on a cloud service, any local files will be deleted when the application is uninstalled.

Files that were stored in the cloud will automatically sync upon logging into your MediBang Paint account, but there is no way of restoring local files that have been deleted.

Please take note of where you have saved your work before uninstalling MediBang Paint for any reason.