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Synara

#2 Daily WinnerPremium

Developer-first API for reliable calendar invites and sync

4 upvotes
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What is Synara?

Synara is a developer-first calendar invite and event-sync service that replaces messy .ics 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.

How to use Synara

  1. 1

    Create an event in your app and send it to Synara via API or SDK

  2. 2

    Synara normalizes the event using ACE and determines the correct calendar action

  3. 3

    Synara delivers the invite/update/cancellation to all attendees across providers

  4. 4

    Monitor delivery, RSVPs, and sync state through logs and webhooks

  5. 5

    Use Synara’s tools to resend invites, rebuild ICS, or replay webhooks if needed

Key features

Uses ACE JSON format to normalize event data across providers

Single API call handles invites, updates, cancellations, and ICS fallback

Automatic update syncing without duplicates or partial updates

Real-time visibility via logs and webhooks

Drop-in SDKs for PHP and JavaScript

Use cases

  • Operations teams scheduling shifts across multiple calendars
  • Logistics companies sending delivery windows to customers
  • Sales teams booking meetings with prospects on different platforms
  • Event organizers managing attendee invitations and updates
  • Developer tools that embed calendar scheduling without ICS headaches

Best for

DevelopersSaaS teamsEvent plannersLogistics companiesSales prosIndie hackers

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Frequently asked questions about Synara

Common questions to help you decide if Synara is right for you.

Synara offers a free early access tier. Visit the official site for current pricing and plans.

It uses an update queue and sync state tracking to ensure updates are applied correctly across all calendars, eliminating duplicates or ghost events.

Synara works with Google Calendar, Microsoft Outlook, Apple Calendar, and any provider that supports ICS fallback.

It’s for developers and teams building apps that send calendar invites, especially in ops, logistics, sales, and event management.

It uses a JSON-based ACE format internally and automatically generates ICS fallback for attendees using legacy calendar clients.

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