HITOCOCO is a smartphone application designed for members of 「ココヘリGPS+」・「ココヘリマリン」・「HITOCOCO」. By registering a dedicated transmitter with the app, users can track GPS location information (updated every 3 minutes) within the SONY IoT network "ELTRESS" range on their smartphone maps. Additionally, direct communication using Bluetooth signals turns the smartphone into a receiver, allowing users to pinpoint the transmitter's location based on signal strength from tens of meters away.

The app serves as a tool for locating individuals by tracking GPS footprints and enabling direct communication for precise location identification. HITOCOCO aims to assist users in finding themselves or their loved ones, offering search activities utilizing a dedicated signal and receiver for direct communication, irrespective of smartphone app communication.