Daerie
An AI-assisted Android journaling app that keeps writing as personal as a paper notebook.
- Role
- Independent developer
- Release
- August 2026 · Google Play
- Platform
- Android (native)
- Languages
- 10 languages
( Idea )
Digital note apps are functional, but rarely personal. With Daerie, the goal was to make writing enjoyable again by keeping the feel of a paper notebook.
The app brings together a notebook-like interface, mood tracking and an AI companion that can draw on your journal with your permission. I handled the whole process myself, from the idea to the release on Google Play.
( What I built )
6 modulesDigital journal
- Journal entries
- Customisable journals and themes
- Notebook-like interface
- Page-turn animations
AI companion
- LLM API integration
- Journal context governed by the user's permissions and preferences
- A personal assistant that can draw on what you've written
Mood tracking
- Daily mood entries
- Mood charts
- Weekly, monthly and yearly reviews
Organisation
- Calendar
- Reminders
- Features that support a writing habit
Multilingual
- Support for 10 languages
Release and product
- Google Play Console workflows
- Packaging and publishing
- Testing and version management
- Store requirements
( Technical depth )
Problem and approachConnecting AI to a journal while respecting privacy
A journal is a person's most private writing. It's useful for the assistant to use that context, but the user has to stay in control of it.
ApproachLLM API integration; the assistant only uses journal context according to the user's permissions and preferences.
One product, ten languages
Offering the same journaling experience to people in different languages.
ApproachMultilingual mobile development: Daerie supports 10 languages today.
Bringing the notebook feel to the screen
An app that's "like a notebook" should recall paper through its interactions, not just its visual theme.
ApproachPage-turn animations, customisable journals and a range of visual themes.
( Tech stack )
( What I learned )
- Shipping a real mobile product
- Building a multilingual mobile app
- Weaving AI features into the user experience
- Mobile interface animation
- Notification and reminder systems
- Managing app store processes
( Gallery )
App screens