How to transfer data between devices

If you are moving to a new device, you can create a data backup from your original device and manually restore the data to the new device.

How to create a backup (as one single backup file)
https://simpleone.aidaluu.com/inventorymanager/article15.html

How to restore a backup (as one single backup file)
https://simpleone.aidaluu.com/inventorymanager/article16.html

How to reinstall this app
https://simpleone.aidaluu.com/inventorymanager/article24.html

Important things to note:

Please keep in mind backups can fail! (This is rare but it can happen!)
Never delete data from your original device before verifying data has been successfully restored to the new device