You can create any type of package e.g daily/weekly/monthly/yearly subscription, free trial, paid trial, one time payment. User can upgrade or downgrade or cancel his/her subscription.
Demo:
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https://dropapk.to/0vzd4sgtzd15
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https://bayfiles.com/dd05K7Wfo3
https://anonfiles.com/n901KdWao1
https://1fichier.com/?9rupbvp2e7z96u5ismze
This file has UNTOUCHED status - (original developer code without any tampering done)