Gotify is described as 'service for sending (via a REST-API) and receiving (via browser/android app) push notifications'. There are more than 10 alternatives to Gotify for a variety of platforms, including Android, Online / Web-based, Windows, iPhone and Android Tablet. The best alternative is Pushbullet, which is free. Other great apps like Gotify are AirDroid (Freemium), Pushover (Paid), Notify17 (Freemium) and QPush (Free).
Notify17 offers its customers a single location where they can centralise all their notifications. How frequently do we happen to miss emails containing an alert, just because our inboxes are too crowded? Features: