You must launch MyContainers while being logged into the same App Store Apple ID that you used with your prior purchase of MyContainers.  If you are unable to login with the same Store ID, you must buy the In-App purchase in order to unlock the Full Version.  After the receipt for the prior or current purchase is verified, you will automatically be credited with the purchase of the Full Version.

1. Export the MyContainers database from the first device
   • Start My Containers and then tap the Settings button on the Toolbar
   • Tap App Preferences and then Tap Select Backup Destination
   • Select iCloud Documents and Tap Save
   • Tap the Back button to return to Settings
   • Now Tap the Manage Database Backups button and then Tap the Backup Now button
   • Make a note of the timestamp of this new backup.
2. Import the My Containers database backup package that was just created into the second device
   • Start My Containers and then tap the Settings button on the Toolbar
   • Tap App Preferences and then Tap Select Backup Destination
   • Select iCloud Documents and Tap Save
   • Tap the Back button to return to Settings
   • Now Tap the Manage Database Backups button and then locate the backup with the same timestamp of the backup that was just created in step 1.
   • Tap the Restore Backup button
   • If the database is not completely empty, it will prompt you with a warning.  If you Tap Continue to Restore Database from Backup, the database will be completely replaced with the backup being restored. 
3. At this point, the databases of both devices contain an identical copy of all of the containers, items, attributes and configuration information and both devices have access to the same backup packages in the MyContainers folder of your iCloud Drive, which is available in Finder on macOS Catalina or later.

• NOTE: Only use the steps procedure if you want to delete all of the Items or the Configuration in your current database and start over from scratch.
• In the Program Settings section tap the Manage Database Contents button
• If you want to delete all of the existing Items and keep the Configuration, under the Delete section, tap the Delete All Database Items button and also confirm the deletion when asked.
• If you want to delete the currently defined Configuration, but keep  all of the existing Items, under the Delete section, tap the Delete Database Configuration button and also confirm the deletion when asked.  Note: This will also cause all Attributes and Categories associated with all Items to be deleted.
• If you want to delete all of the existing Items and the Configuration, under the Delete section, tap the Delete Entire Database button and also confirm the deletion when asked.
• The My Containers database is now ready to customize with a new Configuration and add new Containers and Items.  A fresh copy of the sample data may be reloaded instead.

If desired, MyContainers will make database backups to your iCloud Drive.  This is one way to share a MyContainers database among multiple devices.  A version of MyContainers using iCloud storage to sync a single database across multiple devices is a long term goal for MyContainers. It is not available at this time.  If this feature is important to you, please submit a contact form with that request.

MyContainers has been tested with the Brother QL-810W Ultra-Fast Label Printer along with Brother DK-1201 Address Labels (1.1 X 3.5 Inch).  Please let us know if you have success with other printers or labels.

Any AirPrint compatible printer with 8.5" x 11" paper should work.