Local storage keeps routine data movement simple, but it makes a recovery plan essential. A backup is useful only if it was fully saved, can be found later and can be restored.
Create the archive deliberately
Use the app’s backup tool rather than copying individual files. Body Log creates a versioned archive that keeps records and media together and records an integrity value for every photo.
Finish the share action
Creating an archive and saving it are separate steps. After the system share sheet appears, choose a destination such as Files, AirDrop or a private computer location. Do not assume the file exists simply because the archive was prepared.
Verify before you rely on it
Open the destination and confirm the file is present. Before a major migration, a restore test with disposable content is the strongest check that your process works.
Keep the old installation until the new one displays the expected photos and records.
Store the export with care
Body Log backups are integrity-checked but not encrypted. Anyone who obtains the archive may be able to access its contents. Use a private destination and avoid casual messaging or shared folders.
The takeaway
Create, save, verify and—before a major change—test restore. Treat the archive like the original private photos.
Body Log articles are general educational material about keeping a personal record. They are not medical advice or a substitute for professional care.