Also, not having the certificate can make it more likely the app will continue to work in future. Apple had an incident where App Store apps stopped working wh

Also, not having the certificate can make it more likely the app will continue to work in future. Apple had an incident where App Store apps stopped working when the App Store certificate was replaced. I lost a few apps that I'd purchased that way (though some developers graciously gave me a non App Store version to work around it): https://techcrunch.com/2015/11/12/all-mac-store-apps-stopped-working-due-to-expired-security-certificate/ https://techcrunch.com/2015/11/12/all-mac-store-apps-stopped...