MANGO-TALK is a free social networking app designed for iPhone users. Developed by Sin Toki, this app provides a platform for users to make voice and video calls before meeting in person. Unlike other services that restrict communication unless there is a match, MANGO-TALK allows users to freely send and receive messages without any limitations.

With MANGO-TALK, users can register for free without needing to provide personal information such as phone numbers, email addresses, or external social media accounts. This ensures privacy and security for users. Once registered, users can browse through profiles and show their interest by liking them. Additionally, users can write their own appeals on the bulletin board to attract more attention from others.

The app also offers the functionality to send and receive messages with favorite individuals. Users can start with voice calls to get to know each other better and later progress to video calls for a more personal experience. MANGO-TALK aims to provide a user-friendly and enjoyable communication experience, even for those who choose to use the app for free.