Does anyone know a ready-made service for logging into the site via push notifications?

Question

Mobile development

Are there ready-made solutions for logging in via push notifications to mob. telephone?
This functionality works on privat24: when you try to log in to the privat24.ua website, it sends a form to the application where you confirm the entry by clicking OK in the form.

Answer 1

start here
https://habrahabr.ru/company/yandex/blog/249547/
hardly ready, everything seems to be not going smoothly there

Answer 2

You can do this in PushAll:
Send a unicast to the user - he goes through it and presses OK. Universally works both on a computer and on a phone.