Duet is a private place for couples to plan dates and keep the memories after.

We built it because our own plans kept getting buried in chats, while the photos and little details disappeared across two camera rolls. Duet turns each date into a shared postcard: plan it, go on it, add photos and a few words, and keep it somewhere only the two of you can see.

There are no feeds, followers, likes, or public performance. Just one shared space for the relationship.

Duet Pro is also built for two people, not two separate accounts. One partner pays, both unlock. We use RevenueCat for subscriptions, Supabase for sync and storage, and a simple shared couple entitlement so the partner never hits a second paywall.

The main principle was simple: paying should unlock more, but lapsing should never take memories away. Your postcards stay yours.

Built With

  • cloudflare-workers
  • ios
  • openrouter
  • postgresql
  • revenuecat
  • sign-in-with-apple
  • storekit
  • supabase
  • swift
  • swiftui
  • xcodegen
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