Hetk

Hetk is a calendar synchronization service that keeps Google Calendar, Microsoft Outlook, and Apple iCloud in real-time sync. When an event changes in one calendar, the change appears in the others within seconds — without manual copying, scheduled exports, or browser extensions.

Hetk is built for people who run their lives across multiple calendars: freelancers managing client schedules, remote workers separating personal and work commitments, consultants juggling firms, and executives whose assistants need visibility into availability without exposing every detail.

Key features include bi-directional sync between any combination of providers, privacy controls that mask event titles and attendees when syncing to shared calendars, identity transformation that replaces the organizer email with the target account's identity, and automatic webhook subscriptions that surface changes within seconds (Google and Microsoft) or within 3–5 minutes (Apple iCloud via CalDAV).

Pricing starts at $15 per year for personal use (up to 3 calendars) with a 21-day free trial. Hetk is built and operated in Estonia under EU jurisdiction by Hetk Technologies OÜ.