Is there a backup / export function?

[biff80]

So I have a new android and was trying to migrate my cards over to the new phone. Maybe I'm being dense, but I can't figure out how to do it (I don't have a server)

• The export function in the app just seems to migrate app settings.
• android\data\com.akylas.cardwallet\files is basically an empty directory

Is there a simple way to copy & paste into a new phone?