Telegram
From Planfix
Telegram is a free cross-platform messenger for smartphones and other devices that lets users exchange text messages and various types of media files.
Telegram allows you to link additional bots, which you can use to receive information from other services in your Telegram app. Telegram can also deliver push notifications (notifications that appear on a locked smartphone or tablet screen).
Planfix supports several options for working with Telegram. They are all available once you have authorized Telegram in Planfix
Important
Make sure Telegram isn't blocked in your country, and make sure it works on your device.