As-salamu Alaykum wa Rahmatullahi wa Barakatuh,
SmartAzanClock.com is a Progressive Web Application.
You can think of it as an "app" that installs itself onto your device once you add it to your home screen.
Following the instructions below you can turn your Android device or Raspberry Pi
into a Smart Azan Clock for free and manage it remotely while you are on the same network. It's easy to set up and no registration or login is required.
If you prefer to get a new device we recommend Azpen A760.