One button in Receipts downloads a ZIP of every original file plus a CSV of provider, patient, date, category, and amount.
From the Receipts page, use Export all. You get a ZIP containing:
The CSV is the part that makes an archive usable rather than just complete. A folder of 400 photos named IMG_4471 is technically a backup; a folder plus an index you can sort and search is a record.
There's no export limit and no charge. Doing this once a year at tax time is a good habit — attach the export to your return copy and the year's substantiation lives in one place.
No lock-in is deliberate. A vault you can't leave isn't safe storage, it's a hostage situation.