Theoretically, you can also keep allowing Push Notification permission every time you install and then delete. This will cause the number of push tokens (unique

Theoretically, you can also keep allowing Push Notification permission every time you install and then delete. This will cause the number of push tokens (unique per device per install) they see to increase. There are ways to overcome this of course - they might have a routine to send silent push notifications at regular intervals to test for this and purge inactive ones or retire extremely old tokens. Just a lot of housekeeping. P.S: Not posting to incite any malicious behavior - just issues i've seen with trying to count "unique" installs for mobile apps. Edit:typo