Automatic and private
On iPhone, ShowCards mirrors your wallet to your own private iCloud database; on Android, to your own private Google Drive app storage. Only your own account can reach it, and we cannot see it. Changes sync in the background within moments of being made.
When sync is off
If you are not signed in to your cloud account, ShowCards shows a small banner and simply keeps everything on the device. The app works fully offline; sync resumes when you sign in.