NinjaNext product
MoodCanvas: a private visual mood journal
Pick one colour a day and watch it grow into a personal mosaic and monthly artwork. Our Android app keeps everything on the device.
Finished first version with its release pipeline and store kit ready. Not yet published.
- Owner
- NinjaNext product
- Industry
- Consumer Apps & Games
- Period
- 2026
- Platforms
- Android
- Key figures
- 30starget time for a daily check-in
The problem
Mood journaling often feels like homework, and many mood apps ask for an account and personal data. We wanted a check-in that takes under 30 seconds and never leaves the phone.
What we built
The daily check-in is a single colour, with an optional feeling, note and tags. Entries build a month mosaic and a generated piece of artwork, all stored offline in SQLite with no network access.
Key features
- Daily check-in with a 12-colour palette or a custom colour, 12 feelings, an optional note and tags
- Month mosaic calendar with labels for screen readers
- Generated monthly artwork and a year-in-colours view, exportable as a high-resolution image
- Searchable journal with filters by feeling, tag and date
- Monthly reflections with simple counts and neutral observations, never diagnoses
- JSON and CSV export, and delete-all-data in one step
- Large touch targets, selection never shown by colour alone, reduced motion and dynamic text size
Technology stack
The main technologies used in this project.
- React Native
- Expo
- TypeScript
- expo-sqlite
- react-native-svg
- react-native-reanimated
- Jest
- GitHub Actions
Our role
Designed and built by NinjaNext.
Challenges and how we handled them
Art from personal data, privately
The monthly artwork is generated on the device from the user's own entries, and the app is blocked from network access, so nothing is uploaded.
Screens
Let's build it
Planning something similar?
Tell us about your project. If it is close to MoodCanvas, we will explain what we would reuse, what we would do differently and what to decide first.