Push Notify API~ NotifyDroid ~ is a simple push notification receiver that comes with an easy REST API to send messages, perfect for IoT, Raspberry Pi, Arduino, and similar devices. The app allows users to make GET/POST requests via HTTP using the API Key displayed in the app. There is a limit to the number of messages that can be sent per day, and users are advised not to send any personally identifiable information.

The app allows users to set the following parameters: k=API Key (required), t=title, c=content, and u=URL to open when clicked. The API Key can be recreated, and users can check from the test submission form. A sample request is also provided on the app's website, making it easy for users to get started.