02 Features

Features

Connect your calendars and pick how events flow. Hetk handles the rest.

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Works with

  • Google Calendar
  • Microsoft Outlook
  • Apple iCloud
Hetk dashboard showing active sync between Google Calendar and Outlook
  1. 01.

    Multi-Provider Calendar Sync

    Sync events between Google Calendar, Microsoft Outlook, and Apple iCloud. Mix and match: sync your Google work calendar with your Outlook personal calendar, or keep all three in step.

    • Google and Microsoft sync via real-time webhooks; changes appear in seconds
    • Apple iCloud syncs via CalDAV with automatic polling
    • Cross-provider: sync Google to Outlook, Outlook to iCloud, or any combination
  2. 02.

    Flexible Sync Directions

    Choose exactly how events flow between each calendar pair. Set up one-way sync to copy events from a source calendar, or bi-directional sync to keep both calendars in step.

    • One-way: events flow from source to target only
    • Bi-directional: new events in either calendar appear in the other, and edits to an original update its copy
    • Per-pair configuration: each sync relationship has its own direction setting
  3. 03.

    Privacy Controls

    Control what details are visible when events sync to another calendar. Keep sensitive meeting titles private, or show only that you're busy. Synced copies never carry the attendee list.

    • Replace the details with "Busy": the title becomes "Busy", notes and location are cleared
    • Flag the copy as private: people the calendar is shared with see only "Busy", not the details
    • Title templates: label synced events by source, like "[Job 1] Busy", using a rule you write
  4. 04.

    Filters

    Choose which events sync. Add simple "skip" rules to a sync, and events that match stay in their own calendar. The week preview redraws as you change a rule, so you see the result before you save.

    • Skip all-day events, events that show you as free, or invitations you answered "Maybe" to
    • Skip events whose title contains a word or phrase, like "Lunch" or "Gym"
    • Skip by color: a color you gave a Google Calendar event, or an Outlook category (iCloud events have no color to match)
    • Only events created in this calendar: stop events that arrived from another sync from being copied on
  5. 05.

    Automatic Sync

    Events sync automatically as soon as they change. No manual copying, no scheduled batch jobs. Between Google and Outlook, a new event appears in the other calendar within seconds. iCloud is checked every 5 minutes, less often if quiet.

    • Google Calendar and Outlook send push notifications, so changes usually arrive within seconds
    • A safety check runs every 15 minutes in case a notification is missed
    • Automatic webhook renewal: Hetk manages expiration and re-registration
    • Built-in duplicate detection stops the same event from syncing twice
  6. 06.

    Simple Setup

    Connect your calendar accounts, pick which calendars to sync, choose a direction, and you're done. The guided sync wizard walks you through each step.

    • Sign in with Google or Microsoft, then connect Apple iCloud with an app-specific password
    • Pick calendars, a direction, privacy settings and filters in a 4-step wizard
    • Pause, resume, or reconfigure any sync relationship at any time
  7. 07.

    Affordable Plans

    Hetk costs a fraction of the alternatives. The Personal plan starts at $15/year.

    • Personal: $15/year (early adopter: $10/year), unlimited calendars, up to 3 sync pairs
    • Professional: $50/year (early adopter: $35/year), unlimited calendars, up to 8 sync pairs
    • 21-day free trial with full feature access

How the pieces fit together

The features above aren’t a checklist of separate tools. They’re the parts of one setup, and they make the most sense together. You connect your accounts, you create a sync relationship between two calendars, you pick a direction, and you decide how much of each event the other side should see. That’s the whole model. Everything else is Hetk doing that job reliably while you forget about it.

A sync relationship is the unit you work with. Each one links a source calendar to a target, carries its own direction, and has its own privacy settings. You can have several at once, pointed in different directions, and they don’t interfere. A common arrangement is one-way mirrors flowing into a calendar you read, plus a private “Busy” sync flowing out to a calendar other people read. The use-case pages show real versions of this for freelancers, lawyers, executive assistants, and others.

You don’t have to set one up blind. The sync wizard shows a preview of your week as Hetk would sync it before you press “Create and start”, and every existing sync has a read-only calendar view of what Hetk’s next pass would do.

What isn’t here is also deliberate. No scheduling assistant, no AI rewriting your meeting titles, no platform-flavoured extras. The title templates are deterministic by design: a pattern you write, applied the same way every time, with no model deciding anything. The reasoning behind keeping AI out of the product is in why Hetk has no AI.

What “real-time” actually means

Hetk supports exactly three providers: Google Calendar, Microsoft Outlook / 365 and Apple iCloud.

Google Calendar and Outlook. Changes in Google Calendar and Outlook usually arrive within seconds, through push notifications. A safety check runs every 15 minutes in case a notification is missed. Hetk renews the push subscriptions before they expire, so you never have to think about reconnecting.

Apple iCloud. Apple iCloud has no push. Hetk checks iCloud every 5 minutes, and less often for a calendar that has been quiet. Changes going the other way, into iCloud, are written as soon as Hetk hears about them.

Hetk does not promise a hard number. The result in practice: you stop copying events by hand.

Two safeguards run underneath. Duplicate detection keeps the same event from being written twice, which is the failure mode most ad-hoc sync setups eventually hit. And because Hetk tracks each synced event by its identifier, an edit updates the existing copy instead of creating a second one.

Set it up for your calendars

Each provider connects a little differently. The integration pages say what Hetk asks for and what it can and cannot sync: Google Calendar and Google Workspace, Outlook and Microsoft 365, and Apple iCloud over CalDAV.

Then follow the guide for your pair: Outlook with Google Calendar, iCloud with Google Calendar, iCloud with Outlook, or a shared Outlook calendar with Google. iCloud needs an app-specific password before it will connect.

Not sure yet? Try Hetk on spare calendars first. Every guide is listed on the guides page, and unfamiliar terms are in the glossary.

Pick a plan by how many syncs you need

Both plans include every feature on this page: bi-directional sync, all three providers, the full set of privacy controls, filters, and automatic updates. The difference is how many sync relationships you can run at once. Personal covers up to three sync pairs, which suits keeping a work and personal calendar aligned or handling a couple of clients. Professional covers up to eight, for people coordinating several calendars across providers and organisations. Connected calendars are unlimited on both; only the number of active sync pairs is capped. Every account starts with a 21-day free trial that includes full access, so you can build your real setup before deciding.

Still weighing Hetk against another tool? The comparison pages go feature by feature, and the 2026 calendar sync roundup puts the main alternatives side by side. Wondering whether your specific situation is a good fit? The FAQ answers the questions we hear most.