Solo Diary: Just for You
A gentle diary with AI
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
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.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
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.
The developer, Sae Ueno, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- User Content
- Identifiers
- Usage Data
- Diagnostics
Data Linked to You
The following data may be collected and linked to your identity:
- User Content
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Sae Ueno
- Size
- 29.5 MB
- Category
- Lifestyle
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- Japanese
- Age Rating
13+
- 13+
- Contains
Advertising
Messaging and Chat
- In-App Purchases
Yes
- Remove ads $2.99
- Copyright
- © Sae 2026