Data Jar was designed to be used with Shortcuts and feels right at home in your shortcuts.
If you have used dictionaries and lists in Shortcuts, you'll feel right at home. Data Jar understands JSON.
Your data is synchronized between your devices using Apple's iCloud.
Meant to be used on the road. All your data is stored offline and will be synchronised whenever possible.
Files in your store can be accessed from iCloud Drive, just like any other file on your device.
Data Jar is free to use but contains a tip jar where users can pay a few bucks to support the developer.