This is a mobile training log journal app for Jiu-Jitsu practitioners. Jiu-Jitsu practitioners often invest a lot of time, at least 3 times a week, but given the varied nature of Jiu-Jitsu techniques, it's not easy to remember all the technical lesson content. helps all practitioners who are consistently training to become a black belt. Record your daily exercise and categorize it by technique to help you discover your own Jiu-Jitsu style. Through , after creating a journal entry, users can systematically review their logs in two ways: 1. View diary entries in calendar format based on the diary category 2. View diary entries in a technique tree format based on the technique category [ Contact ] Instagram: https://www.instagram.com/post_black_belt/ Email: [email protected] *Updates may be slow as this is a one-person development app. For any other inquiries, please contact via email