of Service Termination. We will stop the service at Jan/26/2018 10: 00 due to the usage situation. Details: Yubichat is fresh chatting software for the new touch era! It come true chatting by handwriting. Concept / Feature. 1. Handwriting expresses sensitive feeling. 2. Certainly you may make friends. 3. Good for killing time. 4. Only one user who you can follow.