Solid Diary — AI Journal is a personal journaling app with built-in AI analysis designed to help you end the day calmly and with more self-awareness. It’s made as a private space to reflect, capture emotions and events, and better understand your patterns over time.
AI-assisted reflection
You write about your thoughts, plans, and experiences, and the app’s AI provides a gentle analysis to help you notice what’s easy to miss in the moment:
- Mood trends over time
- Possible triggers
- Repeating themes and patterns
These insights can support self-development, emotional well-being, and goal work without turning journaling into a complicated process.
Privacy and one-time purchase
The developers emphasize full privacy: your entries stay with you. Solid Diary has no subscription—pay once and use it as long as you need. It’s available across Apple devices, which makes it convenient if you journal from multiple screens:
- iPhone
- iPad
- Mac
For ages 9+
Solid Diary is intended for users ages 9 and up, so it can work both as an adult’s personal journal and as a teen’s tool for building reflection and mindfulness habits.

