CalendarBridge Alternative: What to Know Before You Buy
CalendarBridge is one of the better-known tools for syncing multiple calendars. If you landed here, you’ve probably already seen their website and are wondering: Does it fit my setup? Is the price worth it? And what about GDPR?
Here’s an honest comparison — including the cases where CalendarBridge is actually the better choice.
What CalendarBridge Offers
CalendarBridge syncs calendar events between Google, Outlook, and Apple. Beyond basic syncing, it offers scheduling pages (similar to Calendly), a dedicated calendar app, and since 2025, an “AI Executive Assistant.”
Pricing (as of March 2026):
| Plan | Calendars | Price (monthly) | Price (annual) |
|---|---|---|---|
| Basic | 2 | $5/month | $4/month |
| Premium | 5 | $10/month | $8/month |
| Pro | 8 | $40/month | $32/month |
All plans include unlimited events, up to 10 scheduling pages, and the calendar app.
Where CalendarBridge Falls Short
For many European teams, there are three concrete problems:
1. US Hosting CalendarBridge processes calendar data on US servers. For companies with works council agreements or in regulated industries (law firms, consulting, healthcare), that’s a dealbreaker. You need a data protection impact assessment, must review standard contractual clauses, and potentially get approval from your works council or DPO.
2. Built Around Full-Event Sync CalendarBridge can sync full event details or just “busy” — but its default and rules are built around full-event sync (titles, attendees, notes). With Kalender-Sync, free/busy is the default: if you just want to know whether a slot is free or busy, you never share more data than necessary.
3. Price with Multiple Calendars If you want to connect Outlook, Google, and iCloud, you need at least the Premium plan ($10/month). For 8 calendars, it’s $40/month — that adds up quickly, especially if all you need is free/busy.
Kalender-Sync as an Alternative: What’s Different?
Kalender-Sync deliberately does less than CalendarBridge — and that’s exactly the point.
What Kalender-Sync does:
- Syncs calendars between Google, Outlook, Apple iCloud, GMX, WEB.DE, mailbox.org, Infomaniak kSuite, and iCal feeds (Business plan) — generic CalDAV coming soon; free/busy by default, with “title + time” or “full details” selectable per sync
- Creates “Blocked” entries in the target calendar when you have an event elsewhere (with a custom display name if you want — Basic plan and up)
- By default no titles, no attendees, no notes — just free/busy; you decide per sync whether more becomes visible
- True two-way sync and live-sharing directly into another person’s calendar — no ICS feed
What Kalender-Sync doesn’t do:
- No scheduling pages
- No dedicated calendar app
- No AI assistant
| CalendarBridge | Kalender-Sync | |
|---|---|---|
| Sync type | Selectable (focus: full events) | Selectable per sync (default: busy only) |
| Providers | Google, Outlook/M365, Apple iCloud, ICS links | Google, Outlook, Apple, GMX, WEB.DE, mailbox.org, kSuite, iCal feeds (Business); CalDAV coming soon |
| Hosting | USA | Germany (Hetzner) |
| Price | From $5/month | Free plan, from €4/month |
| DPA | On request | Included in Business plan, otherwise on request |
| Separate app required | No (optional calendar app) | No, runs in the background |
When CalendarBridge Is the Better Choice
If you need meeting scheduling or want a centralized calendar app — then CalendarBridge is the more complete tool. The AI assistant can add value for power users with many meetings.
When Kalender-Sync Is a Better Fit
- You want data minimization by default — availability only, unless you opt into more detail per sync
- Your company requires hosting in Germany or the EU
- You need a DPA (data processing agreement) without weeks of back-and-forth (included in the Business plan)
- You use more than 2 calendars and don’t want to pay $10+/month
- Your works council or data protection officer needs to approve
Switching from CalendarBridge
If you’re already using CalendarBridge and want to switch:
- Note which calendars you’re currently syncing and in which direction
- Sign up at Kalender-Sync and select your providers
- Connect your calendars via OAuth (Google, Outlook) or app-specific password (iCloud)
- Create the same sync rules and pick the visibility level per sync — busy only (default), title + time, or full details
- Cancel CalendarBridge once you’ve verified everything works
Setup takes under 5 minutes.
