I use the pgp plugin for apple mail on my mac, but I wouldn't want to rely on it for anything business critical. It's usually months after a macos/mail.app upd

I use the pgp plugin for apple mail on my mac, but I wouldn't want to rely on it for anything business critical. It's usually months after a macos/mail.app update before the plugin works again. Theres no equivalent option for iOS. There are alternative solutions but nothing as seamless. S/MIME is supported out of the box. For bonus ease of setup, I can install the current private key + cert pairs I need with a single provisioning profile.