A free program for Android, by Cashify.in.

This App is powered by Cashify.in, a website that lets you buy and sell smartphones. It is one of India’s largest mobile-to-mobile marketplace and serves as a great platform for both sellers and buyers to come together and trade. It is a mobile-first platform that lets you sell your old smartphone and get buyback for it. 

The app makes the entire process very easy and hassle-free. All you need to do is download the app, create an account, and list your old phone for sale. You can then get in touch with buyers and start a dialogue.

It is a great way to upgrade to the latest vivo smartphone and to get rid of your old one. If you are looking to purchase a new smartphone, this app can help you find the best deals in the market.