List of free push-notification tool/service for developerππ½

Pusher Beams
A push notifications API for developers who need critical information delivered every time. Scalable delivery for all your apps with no complex integration.
Tag: real-time, push-notification
Sandbox Account 1,000 subscribers

Push by Techulus
Receive custom push notifications without building your own app!
Tag: push-notification
Send 100 notifications/month Connect up to 5 devices Email support