AI Diary

AI Diary is a journaling app where entries take the form of a conversation with an AI rather than plain text notes. Users write about their day or feelings, and the AI responds with follow-up questions, generates summaries or poems from entries, and offers smart search across past writing. A mood-analysis feature tracks emotional patterns over time and visualizes them as a graph, and a voice interaction mode lets users speak entries and hear AI responses back. It is aimed at people using journaling for personal growth and reflection, writers wanting to develop their craft through regular writing, and anyone looking for lightweight emotional wellness support through structured self-reflection. The chat format is meant to lower the barrier to writing by prompting users with questions rather than requiring them to start from a blank page. The app runs on a freemium model: the free tier is limited to five AI messages per day, with unlimited paid plans available monthly or annually. Login is available through Google or Twitter. The site reports over 11,000 active writers and 50,000 diary entries, and credits Rajat Vaghani as founder, with copyright dated 2023-25. One limitation is that beyond encryption claims, the site does not detail how conversation data is used to train or improve its AI models, which matters for a tool handling personal, emotionally sensitive writing.