Pushover.net does it just fine. https://support.pushover.net/i46-are-messages-notifications-encrypted https://support.pushover.net/i46-are-messages-notificatio

Pushover.net does it just fine. https://support.pushover.net/i46-are-messages-notifications-encrypted https://support.pushover.net/i46-are-messages-notifications-... My understanding is that Pushover encrypts the message with your device's public key (from the app) and delivers it through Apple/Google. On iOS you need a special permission from Apple to "filter" push notifications and this is the hook they use to capture and decrypt it before displaying it on your phone