At the moment Safari on iOS doesn’t support web push notifications.
safari
Let’s ask Apple to add Web Push Notifications to iOS
We’ve all been there: you have built a great web app, optimized for mobile, but you have to build a native or hybrid web app just to send push notifications.
Fortunately, thanks to the new standards, like the Push API, Service Workers and Web Notifications, you don’t have to build an app only to have the ability to send push notifications. Now websites can send push notifications directly, even when the user is not surfing the website.
Awesome! The problem is that web push notifications work on Android, but not on iOS!
Unable to generate ICNS file for push notification package [solved]
If you are struggling with the error above, but all your icons of the push package are of the correct size, you have probably set the wrong DPI.
Safari push notifications stop working after some time
These days we have investigated an issue related to Safari.
Sometimes it happens that you subscribe to the push notifications of a website, but after some time you don’t receive notifications anymore.
At first we thought that our system had a bug, but it’s not like that.