투다 (Tooda) is a lifestyle app designed for sharing and creating personal diaries and journals with family, friends, or partners. It offers a variety of features to capture memories and express thoughts freely. Users can invite friends to create shared secret diaries, organize personal diaries by groups or themes, and bookmark important entries for easy access.

With Tooda, users can write daily entries accompanied by cute illustrations, decorate their diaries with stickers, and create a personalized space to share photos and thoughts with friends. The app provides various diary templates, lock feature for privacy, and notification alerts for interactions within shared diaries.