Tangle

An AI that knows you through your journal, shareable with people who matter.

Most journaling apps are write-only: you dump thoughts into a void and hope insights emerge. Tangle creates an AI companion that learns from your entries—your "Tangle"—that can reflect back patterns, offer perspective, and actually talk with you about what you're thinking.

You can also share your Tangle with friends and family. They get to interact with an AI version of your inner world, with granular privacy controls so you decide what they can access. It's a way to be understood without having to explain everything explicitly.

Built as a native iOS app, Tangle combines private journaling with selective social features. The AI generates prompts, surfaces themes, and provides reflections based on your history. Friends can chat with your Tangle, and you can maintain private notes on theirs.

How it works:

• SwiftUI for native iOS experience

• Firebase for real-time sync and auth

• Node.js/Vercel backend for AI processing

• OpenAI GPT integration for personalized responses

• CoreData with Firestore sync for offline-first functionality

• Sign in with Apple, invite codes for sharing

Contact for TestFlight beta.