How to make app which is always running in background



respected sir, here i want to know blocks , how to make app which is always start in backgroud without opening app.

Always communicate without opening app.

For example whtsapp, without opening app, we always get messgases from from friends.



Thank you very much for instant replay.


Hello @dhav,
You can use notification prepared by @Tiziano1960.

Which run in background as well as after reboot.

Make a combination of firebaseDB and this extension.

Replace extension and try it. :+1:


thank you very very much