Handbell is an Android app developed by AmzApp that lets you turn your smartphone into a virtual handbell. It is a fun and entertaining application that allows you to produce the sound of a handbell by shaking your phone. The app is inspired by the handbell used by Howard in the popular TV show, Big Bang Theory.

With Handbell, you can choose between different handbell sounds and use your phone as a bell to have fun with your friends and family. The app is easy to use, and all you have to do is hold your phone and move it like a handbell to hear the bell sound.

Overall, Handbell is a great app for anyone who wants to have some fun and play with a virtual handbell. It's a simple app that does what it promises, and it's perfect for anyone who loves Big Bang Theory or just wants to add a little fun to their day.