objective c - Delete objects on server when app is deleted from iOS -

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searching solution seems there's no delegate method fires when app being deleted.

my app uploads user profile data on server (name, image) , can delete manually calling function inside app linked "delete profile" button.

but if user deletes app, without deleting profile first, data on server forever , available other user's view, opposed should expected.

what should best way rid of server data user deletes app?

1) make app push enabled. send "background" pushes time time, once week. run own push server - there java , python code around, other kinds too.

when see token bounces, know app has been deleted. mark account stale. @ later time, if user has not done account, can either delete or mothball it.

the downside approach need user's permission send remote notifications.

2) require user re-log account once every 3 months. if don't log in, can above - mark, mothball, delete.


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