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Kalender Sync

Roadmap

What's next

We build in the open. Below: what we're shipping now, what's queued, and what's parked. What matters most to you, you decide in the in-app voting board.

Last updated: August 27, 2026

How to read this

Three buckets — no ship dates

We deliberately don't promise dates. “Now” is live work. “Next” is concretely planned. “Later” is a parked idea — interesting, not committed.

Now · Shipping this sprint

Microsoft Publisher Verification

Frictionless sign-in in strict Microsoft tenants — especially relevant for tax-advisor, consulting and enterprise clients. No more admin-consent detours.

In-app UI rework

New dashboard layout, clearer sharing flows, faster navigation. Complete overhaul of the interface based on your feedback.

Team pricing plan

Requestable today: volume tiers for teams of 5+ users, centralized billing, shared sub-processor overview, one contract for all sharings — details on the pricing page. Self-service checkout coming.

Next · Queued for the next 4–6 weeks

Fastmail integration

CalDAV-based connection to Fastmail calendars — app-specific password, no mail access, EU hosting stays EU hosting.

Yahoo Calendar

Yahoo Calendar via CalDAV — the long tail of personal calendars users want to align with their work calendar.

Help desk

Searchable guides, FAQ and self-serve diagnostics right inside the app. Find the answer before you even open a support ticket.

Later · Parked — ideas & Q3+

Sharing with AI agents

Connect your calendar directly to AI assistants — schedule, reschedule, block. Privacy-compliant with clear permission boundaries.

Proton Calendar (read-only ICS import)

Mirror Proton events as a source into other calendars. A full two-way connection isn't possible due to Proton's end-to-end encryption as long as Proton offers no third-party calendar access — scope under review.

Your suggestions

What's missing here is decided in the in-app voting board. Every vote counts — no exceptions.

Changelog

What we've already shipped

19 releases since February 9, 2026. The 3 latest are visible by default — older entries expand below.

  1. New v0.9.1 July 19, 2026

    mailbox.org as a provider

    Berlin-based business mail provider mailbox.org can now be connected via CalDAV — from the Basic plan. With GMX, WEB.DE and mailbox.org, Kalender Sync now supports three of Germany's best-known mail providers.

  2. New v0.9.0 July 19, 2026

    GMX & WEB.DE as new providers

    Germany's two big personal mail providers have arrived: GMX and WEB.DE calendars can now be connected via CalDAV with an app-specific password — from the Basic plan. Your private German mail calendar runs alongside Outlook, Google and iCloud in a controlled way, with the visibility level selectable per sync.

  3. Fix v0.8.1 July 4, 2026

    Recurring events from Apple & CalDAV calendars

    Recurring events from Apple and CalDAV calendars are now synced completely — including all occurrences, exceptions and deletions.

Show older releases (16)
  1. New v0.8.0 July 4, 2026

    18 months of forward sync on the Professional plan

    The forward sync window is extended from 6 to 18 months on the Professional plan — ideal for bookings and planning far ahead. Free and Basic continue to sync 6 months ahead; into the past it stays 3 months for everyone.

  2. New v0.7.0 June 10, 2026

    7 days of Professional free — try every feature

    New accounts now start with 7 days on the Professional plan — full access to every feature: self-sync, two-way sync, Apple iCloud, kSuite, iCal feeds and unlimited sharings. No credit card, no automatic charge. After the trial you are moved to the free Free plan automatically.

  3. New v0.6.0 May 10, 2026

    30 days of Basic free for new accounts

    New accounts automatically start with 30 days of Basic — including self-sync, Apple iCloud, KSuite, and 5 sharings. No credit card required, no auto-charge. After the trial you're moved to Free; paused sharings are preserved and can be reactivated anytime by subscribing to Basic.

  4. New v0.5.0 April 7, 2026

    Google Calendar without waitlist

    Google calendars can now be connected directly — no manual approval needed. Google OAuth verification completed.

  5. Fix v0.4.1 March 11, 2026

    iCal feed: Recurring events

    Recurring events from iCal feeds are now correctly expanded into individual events and synced.

  6. New v0.4.0 March 11, 2026

    Apple iCloud, KSuite, iCal feeds & dashboard redesign

    Apple iCloud and Infomaniak KSuite as new providers. iCal feed subscriptions for external calendars. New dashboard layout with improved sharing flow.

  7. Fix v0.3.4 March 8, 2026

    Reauth crash fixed

    Fixed error when reconnecting a provider. Automatic sync resumes after re-authentication.

  8. New v0.3.3 March 8, 2026

    Feedback feature

    New feedback button for reporting issues and feature requests directly from the app.

  9. Fix v0.3.2 March 2, 2026

    Sync loop fixed

    Fixed infinite bidirectional synchronization issue.

  10. Improvement v0.3.1 March 1, 2026

    Pilot feedback implemented

    Email invitations, compact invitation rows and improved feedback system.

  11. Improvement v0.3.0 March 1, 2026

    Branding & polish

    Favicon, email layout, provider icons and input validation.

  12. Fix v0.2.2 February 27, 2026

    Microsoft sync fix

    Fixed synchronization issue with Microsoft calendars.

  13. Improvement v0.2.1 February 27, 2026

    Security update

    General security improvements and infrastructure hardening.

  14. Improvement v0.2.0 February 27, 2026

    UI/UX overhaul

    New invite flow, branded header, toast notifications, confirmation dialogs and loading states.

  15. Fix v0.1.1 February 27, 2026

    Bug fixes & stability

    Various fixes for calendar creation, account disconnection and GDPR deletion.

  16. New v0.1.0 February 9, 2026

    Project launch

    Foundation with Google & Microsoft calendar synchronization.

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Currently supported providers

GoogleMicrosoftApple iCloudKKSuiteGMXWEB.DEmailbox.orgiCal-Feeds