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Work

Oursync.io, live in 2 days with 8 screens.

A shared scheduling app for couples. It only lets you book a time when you are both free, so there is no back-and-forth and no double-booking.

Time2 days
Built withClaude Code
DeliveredWebsite, iPhone app

The brief

Couples often can't be sure a time is really free, because only one partner knows about some plans. Oursync books only times that work for both, with no back-and-forth and no double-booking. It went from idea to the App Store in 2 days.

Highlights

  • Only times that work for bothA plan books only into time free for both partners, so nothing gets double-booked.

  • The final OK in one tapThe partner gets a request right away and confirms or declines it with one tap.

  • Right in the iPhone calendarBooked events show up in the phone's own calendar and stay up to date.

See it live

oursync.io

Screens

A look inside Oursync.io. Open any screen to see it full size.

All features

Everything I built

The full list of what Oursync.io does.

  • Booking that allows only times free for both partners, so nothing is ever double-booked
  • Booked events added to the iPhone calendar automatically and kept up to date
  • A propose, confirm or decline flow
  • Inviting a partner by email, so the couple is connected in a minute
  • Alerts on the phone's screen that open the right event in one tap
  • Busy times picked up from each partner's phone calendar, so new plans never clash with work or other commitments
  • Private calendars. A partner sees only that a time doesn't work, never the reason
  • A landing page with an App Store link, FAQ, privacy policy, terms and cookie consent
Technical details

Technical details

For developers and technical founders.

  • Serverless FastAPI on AWS Lambda, deployed with SAM
  • DynamoDB data model
  • Sign-in with Amazon Cognito
  • Scheduled jobs with EventBridge
  • Push notifications and email with SNS and SES
  • iPhone app in Flutter with native calendar sync
  • Next.js landing page on Netlify

Stack

FlutterNext.jsPythonAWSFastAPILambdaAPI GatewayEventBridgeCognitoDynamoDBCloudWatchSESSNSSSMCloudFrontNetlify

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