Featured onNovember 24th, 2025
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Synara
The developer-first event & invite API that fixes ICS issues
Synara is a developer-first calendar invite and event-sync service that replaces messyics files with fast, reliable API-driven scheduling that's built for modern apps. ICS is 25+ years old and parsed differently across providers. Updates get ignored, duplicated, or partially applied. Synara uses ACE, a clean JSON event format, to normalise event data. A single API call handles invites, updates, sync, and ICS fallback, so your app gets predictable behaviour everywhere.
Top comment
Product of the Day7th
I built Synara after running into the same problems every time I tried to send calendar invites from an app. The underlying ICS format is over 25 years old, parsed differently by every provider, and updates often get lost or interpreted inconsistently. Anyone who’s worked with Gmail ↔ Outlook syncing has seen this first-hand. To fix the foundation, I first created ACE, which is a modern JSON event format that removes the ambiguity you get with ICS. Synara uses ACE internally to represent every event cleanly, then handles invites, updates and ICS fallback automatically so behaviour stays predictable across providers. If you’ve dealt with ICS problems or written your own invite/update logic before, I’d love to hear what went wrong and what you wish a tool like this solved.