Progress
The progress screen lists each language the user has engaged with through SynchroTales, shows the total time spent listening to that language, and displays an estimated size of the user's vocabulary in it:
The action menu at the top right of the progress screen includes options to import and export progress:
When "Export Progress" is selected, a json file containing all of the user's scores & listening times across all languages will be downloaded.
This json file may be imported using the "Import Progress" option to restore these scores and times to SynchroTales.
Imported progress will overwrite any existing progress for conflicting languages! Make sure that the scores you're importing are the ones you want, and backup your current scores so that they can be recovered.