Pricing
Fair pricing, clear promise
Start free. Scale when you need to. Pay yearly and save 2 months. No hidden fees, no contract traps.
Free
Always free
Perfect when you just want to show your availability to one person.
- 2 calendar accounts
- 1 sharing
- Google & Outlook
- 30-minute interval
Basic
Billed yearly – €40 / year (2 months free)
For freelancers, tax advisors, coaches – anyone juggling multiple calendars day-to-day.
14 days free · no credit card
- 5 calendar accounts
- 5 syncs
- Self-Sync included
- + Apple iCloud & KSuite
- Real-time via webhook
- Email support
Business
Billed yearly – €100 / year (2 months free)
For teams and companies that want to kill calendar chaos at scale.
- Unlimited accounts & syncs
- Self-Sync included
- All providers + iCal feeds
- Real-time via webhook
- Priority support + call
All tiers GDPR-compliant · Hosted in Germany · Cancel anytime · The trial ends automatically – nothing is charged unless you activate a plan.
Feature comparison
What's in each plan?
Every feature side by side – including every supported calendar provider.
| Feature | Free €0 / mo. | Basic €4 / mo. | Business €10 / mo. |
|---|---|---|---|
| Sync & connections | |||
| Calendar accounts | 2 | 5 | Unlimited |
| Active syncs A sync connects two calendars — e.g. Outlook ↔ Google. | 1 | 5 | Unlimited |
| Bidirectional sync (both ways) | — | ||
| Self-Sync (multiple own calendars) | — | ||
| Share calendars with others | 1 sharing | 5 sharings | Unlimited |
| Sync interval How fast changes propagate. | 30 minutes | Real-time (webhook) | Real-time (webhook) |
| Sync range (ahead) How far into the future events are synced. Always 3 months into the past. | 6 months | 6 months | 18 months |
| Supported providers | |||
| Google Calendar | |||
| Microsoft Outlook / 365 | |||
| Apple iCloud | — | ||
| KSuite (Infomaniak) | — | ||
| iCal feeds (import) | — | — | |
| CalDAV (generic) Soon | — | — | Soon |
| Privacy & hosting | |||
| Free/Busy only (no event details) | |||
| Custom label for blocked slots | — | ||
| Hosted in Germany (Hetzner) | |||
| GDPR-compliant | |||
| Data Processing Agreement (DPA) available | On request | On request | |
| Support | |||
| Help center & guides | |||
| Email support | — | ||
| Priority support | — | — | |
| 1:1 onboarding call | — | — | |
FAQ
Common questions – short answers
- Every new account starts with 14 days of Business — all features, no credit card, no subscription, no charges. You can use Self-Sync, connect Apple iCloud and kSuite and set up unlimited sharings right away. After 14 days you roll seamlessly into the free Free plan if you don't pick anything else.
- You pay for 10 months and use 12 – two months free. Cancel anytime; your plan then runs to the end of the paid period and is not renewed afterwards.
- Kalender Sync moves Free/Busy information between your Outlook, Google and iCloud calendars. KSuite and iCal feeds work the same way. Titles, notes and event details stay private – they're never copied to the other side.
- Hosted exclusively in Germany (Hetzner, Nuremberg), no third-country transfers, a Data Processing Agreement (DPA) is ready for every tier. We only access the availability data we actually need — nothing more.
- Yes, anytime with a single click in your account. On cancellation your plan runs to the end of the paid period – your data sticks around in case you come back.
How does the 14-day trial work?
Why pay annually?
What exactly gets synced?
How do you handle privacy and GDPR?
Can I switch or cancel later?
More details on plans, limits and cancellation in the help center.
Ready to end your calendar chaos for good?
Try free for 14 daysCurrently supported providers
Google Microsoft Apple iCloud KSuite iCal-FeedsNewsletter
Join the Kalender Sync community
Subscribe to our newsletter and get early access to the hottest beta features — so your setup keeps getting better.
Promise: no spam, no AI-generated filler.
