Secret Codes for Vivo is a free app developed by Qasim Apps Studio that provides users with access to hidden codes to change settings and perform other functions on their Vivo mobile devices. The app includes details of common Android secret codes, such as network, GPS, Bluetooth, and WLAN test, as well as firmware version information, factory tests, PDA, and IMEI number display.

In addition to these features, Secret Codes for Vivo offers users the ability to reset and unlock their devices, check manufacturing dates, and view hardware and software information. The app also includes functionality to share codes with social apps free and offline.

It is important to note that some manufacturers do not allow the use of all secret codes, and they may not work on all devices. Users should exercise caution and use at their own risk.

Overall, Secret Codes for Vivo is a useful app for Vivo mobile users who want to discover the secret world of their Android devices and change settings that cannot be accessed through regular phone settings.