Overview

MYOO is a cross-platform mood journaling app that helps users record emotions, write diary entries, and reflect through AI-powered conversations. By combining personal journaling with contextual AI responses, the app encourages users to better understand their emotional patterns.

Tech Stack

Architecture Diagram

ERD

Workflow

• Users complete onboarding and create a profile.
• Users record emotions and write journal entries.
• Journal context is sent to the Gemini API.
• The AI assistant generates context-aware responses based on the user's journal history.

Product Walkthrough

Key Features

• Mood journaling and emotion tracking
• AI-powered journal reflection chat
• Media uploads for diary entries
• User onboarding and profile management
• Secure authentication and data protection with Supabase

My Contributions

• Developed a cross-platform mobile application using React Native, Expo, TypeScript, and Supabase.
• Implemented onboarding, mood tracking, diary creation, profile management, and media upload features.
• Integrated the Gemini API to provide context-aware AI conversations based on users' journal entries.
• Built backend functionality using Supabase Auth, Postgres, Storage, and Row-Level Security (RLS).

Challenges

• Designing a journaling experience that felt simple and natural while supporting AI-powered conversations.
• Passing relevant journal context to the AI without making conversations overly complex.
• Managing authentication and secure storage for users' personal journal data.

What I Learned

• Learned how to build a cross-platform mobile application using React Native and Expo.
• Gained practical experience integrating AI features into a mobile application using the Gemini API.
• Improved my understanding of mobile authentication, file storage, and access control with Supabase Auth, Storage, and RLS.
• Learned how to structure and manage application state and navigation in a React Native project.

Presentation

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