Questions, answered plainly.
Your file stays on your device. During normal receipt creation, your device sends a randomized code made from its fingerprint, plus encrypted recovery data. It doesn't send the plain fingerprint or the random value that opens the code. Keep the original file and the complete receipt for checking. Privacy Policy.
Does a dated photo end the storage rental?
No. Follow the facility's notice and hand-back requirements, and keep its acknowledgment. A file receipt does not end a contract.
Will this prove a later bill is wrong?
No. The agreement, notices, facility records and facts of the move-out still matter. It dates only the saved bytes.
The file tester runs on your device. It does not issue a timestamp or take a payment.