Funtouch OS is an Android-based operating system developed by Vivo.

It was initially released in 2013 and serves as the primary software on Vivo smartphones.

The operating system is based on the Android platform and has been modified to improve the user experience.

Although it is based on Android 4.4.2, the operating system has been modified to provide functions and design elements exclusive to Vivo devices.

Funtouch OS has seen numerous updates over the years, each of which has added new functionality and enhancements to the system.