Hello product hunt Multiple times I tried to build a proper calendar sync app, but it became prohibitively complex. Providers like Google Calendar and Outlook require extensive user agreements because once authorized, an app has access to ALL calendar events. This creates significant privacy risk — you're trusting the app with your most personal information. The breakthrough came when I realized the solution was simpler: don't store any data, period. Through brainstorming with AI, I discovered a safer and even better alternative: utilizing PWA features to generate and trigger native calendar events using ICS files. This approach avoids the OAuth complexity entirely while delivering the same functionality with better privacy. Another break through is discovering PWA calendar capabilities demo at https://progressier.com/pwa-capa.... With this the experience is complete. Syncing event is as simple as input the calendar url, find the event, then sync it to target calendar. No auth, no hassle, just sync.

BusiCal

Sync your calendar event without hassle

Sync your calendar event without hassle