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Tuck scans the barcode cards in your physical wallet — loyalty cards, memberships, library cards, gym cards — and turns them into Apple Wallet passes. You can rip through a whole stack in one sitting: scan, sort out the tricky ones, tap once, and they're on your phone. Tuck keeps the original card photo and the raw number with every pass as a backup.
Turning a printed card into a phone barcode isn't always perfect. A store's scanner may expect a different barcode format than the one Tuck detected, some registers only accept the physical card, and screen glare or brightness can affect a scan. That's why Tuck keeps the original photo and number with each pass — a cashier can key in the number or read the photo if the barcode won't scan. Keep your physical cards as a fallback; don't rely on Tuck as your only copy.
Yes. Everything you scan — card numbers, photos, names — is stored only on your iPhone. There is no account, no sign-in, and nothing is uploaded. Tuck has no analytics and no trackers; its App Store privacy label is "Data Not Collected." The one exception is honest and narrow: to sign a Wallet pass, only a set of secure fingerprints (hashes) — never your card number, photo, or name — is sent to be signed, and the signing service stores nothing. See the Privacy Policy for the full detail.
Because there's no account and no server, there's nothing for us to delete. Deleting the Tuck app from your iPhone removes all of its scanned data. Passes you already added live in Apple Wallet and can be deleted there individually at any time.