Sirijunga Keyboard is a free Android app developed by Kuldip Sanyak Limbu. It is designed to assist Limbu people in typing in Sirijunga script on their Android devices. The app offers three different keyboard layouts, all of which are kept simple to ensure easy and comfortable typing.

The installation process is straightforward. You can download the app from the Google Play Store and then follow these simple steps: go to settings, select Language and Input, choose Sirijunga Keyboard as the default keyboard, and you're done. Once enabled, you can start using Sirijunga Keyboard to type in Sirijunga script.