About this app
Solo Diary replaces the habit of opening social media with a timeline that's only yours. ■ No one can see it No followers, no public posts, no like counts. What you write here is yours alone. Instead of comparing yourself to others, you face only your past self. ■ Instead of likes, a word from an AI When you post, an AI leaves a short comment. Choose from three personalities — Empathetic, Witty, or Matter-of-fact. AI comments are optional; every feature still works with them off. When on, only your note's text is sent to generate a comment. Photos are never sent. ■ Your past self, returning "A month ago / a year ago today" surfaces at the top of your timeline, so you can gently reread how you felt back then. ■ Quiet by design A dark theme. No red notification badges, and no endless scroll — a finite timeline you can actually finish. ■ In your language Available in English, Japanese, Chinese, Korean, and Spanish. The app follows your device language, and the AI replies in your language too. No account needed. Your data stays on your device and can be deleted anytime. Free to use (ads support the AI feature). Prefer no ads? A one-time "Remove ads" purchase hides them all.
Latest release
What’s New
Turn the urge to open social media into a timeline that's only yours. Write today's feelings—unseen. Instead of likes, an AI leaves you a gentle word.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Sep 30, 2026 · 8:01 AM Free