Push Notifications Fixer is a free app that lets you make your Android phone send instant notifications even if it has been closed or the network is poor.

How does it work?

This app is an open source project and you can find its source code on GitHub. It's a native client which connects to the GSF API of your Android phone. It changes the values of some numbers in the notifications database of your phone. It checks if the connection is established, if the connection is good, and if it is not, it will send a request to establish the connection.

What are the benefits of this app?

It can solve the problem of the delayed notifications of some services such as GMail, Whatsapp, Facebook, Twitter, and others.