Chi Gap is a communication application developed by Tcell JSC, available for Android users. The app is designed to make and receive calls, send SMS, and monitor balance online. To use Chi Gap, registration is required through a Tcell number. The app supports Tajik, Russian, and English languages and requires an internet connection via 2G/3G/4G mobile networks or Wi-Fi.

One of the key features of Chi Gap is its ability to make calls to Tajikistan and other countries at reasonable prices. Users can also receive calls, send SMS, and monitor their balance online. Additionally, the app allows balance top-up, including through TezSum, and temporary balance credit through the "Temporarily payment" service of Tcell. Users can also transfer balance from one Tcell number to another using the "Mobile transfer" service. Moreover, users can get special offers from Tcell and stay informed of breaking news through the app. Customers can also contact Tcell Customer Care through online chat, free voice call, or email.

It is important to note that the app may incur charges for internet usage. For more information, users can contact their operator. Overall, Chi Gap is a useful communication application for Tcell users in Tajikistan, providing a range of features to meet their communication needs.