Kalender Sync vs zcal
Kalender Sync and zcal are both scheduling & calendar tools. Kalender Sync is aimed at freelancers and small businesses, while zcal is aimed at freelancers. Both have a free plan.
German-hosted calendar sync across providers, with AI assistant access
Free, well-designed scheduling pages
| Pricing | Freemium | Freemium · $7 |
| Starting price | Not published | $7/mo |
| Free plan | Yes | Yes |
| Free trial | 7 days | 14 days |
| Built for | Freelancers, Small businesses | Freelancers |
| Platforms | web | web |
| Country | DE | US · 2021 |
| Rating | — | — |
Choose Kalender Sync if
Freelancers and consultants in Europe who need GDPR-compliant sync across Google, Outlook, iCloud and German mail providers.
- Covers German providers that most sync tools ignore
- Privacy-friendly default shares busy time only
- GDPR DPA included even on the Free plan
Look elsewhere if: Teams wanting AI task scheduling or central admin for many users (Reclaim, Ridian).
Choose zcal if
Individuals wanting free scheduling.
- Generous free plan
- Clean design
- Polls
Look elsewhere if: Sales teams.
Kalender Sync vs zcal pricing
Kalender Sync
- Free€02 accounts, 1 sharing, Google and Outlook only, 100 AI credits
- Basic€5/mo3 accounts, 5 syncs, all providers; 2 months free yearly
- Professional€12/moUnlimited accounts and syncs, 18 months ahead, 2,000 credits
zcal
- Free$0Unlimited links and calendars, meeting polls
- Pro$7/user/moTeams, workflows; small teams
- Business$12/user/moCustom domains, custom email domains
Kalender Sync · Key features
- One-way or two-way sync between calendars at different providers
- Supports Google, Outlook, iCloud, GMX, WEB.DE, mailbox.org and kSuite
- Busy-only, title and time, or full-detail visibility per sync
- Real-time webhooks for Google and Outlook, 5-minute polling for others
- MCP server for Claude, ChatGPT, Cursor, Zapier and n8n
- Per-calendar AI permissions with a logged history of actions
Cons
- Prices listed only in euros
- Free plan cannot sync your own calendars with each other
- Non-Google, non-Outlook providers update about every five minutes
zcal · Key features
- Free booking pages
- Group events
- Meeting polls
- Reminders
- Custom questions
- Calendar sync
Cons
- Limited team features
- Fewer integrations
- Small company
Kalender Sync vs zcal: FAQ
Do Kalender Sync and zcal have a free plan?
Yes, both Kalender Sync and zcal have a free plan; paid plans add more usage and features.
Which is better for small businesses, Kalender Sync or zcal?
Kalender Sync lists small businesses as a core audience, while zcal is aimed more at freelancers.