Keep – Relationship Notes & CRM

Inspiration

The idea came from a hackathon I attended with a friend. She often lost track of friends and forgot to check in with them, and suggested we build something to help. We quickly prototyped a simple version during the event in Lovable, and people loved it. That enthusiasm inspired us to keep going and turn the prototype into a real product.

What We Learned

We learned how universal the problem is—everyone struggles to stay connected with the people they care about. We also learned how powerful it can be to combine AI with a simple, voice-first design to make relationship management effortless.

How We Built It

We started with an iOS SwiftUI app for fast prototyping and added a local database for privacy. On the back end, we used Node.js/Express with OpenAI Whisper for speech-to-text and open router.ai for structuring notes into reminders using any LLM. We designed everything to feel simple, lightweight, and mobile-first.

Challenges We Faced

The biggest challenge was balancing privacy with AI features. We wanted to use powerful AI models while keeping all personal data safe and local on the device. Another challenge was scoping—deciding which features to keep for a minimal, lovable first version and which to save for later. Finally, building smooth integrations between voice input, AI processing, and reminders required a lot of iteration.

Built With

• express.js
• node.js
• openai
• openrouter
• railway
• swiftdata
• swiftui
• typescript