Cello is an Android app developed by Rev Soft Inc (1505, 14#, JianWai SOHO West, ChaoYang District, Beijing, PRC). Others apps created by Rev Soft Inc are: Distortion Guitar, Synth Bass 1.

Cello first became available on 31 May 2015. It is estimated that Cello has been downloaded between 500000 and 1000000 times from the Play Store.