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