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. Full Calendar Access CalendarBridge copies complete events — titles, attendees, notes. That’s more than most people actually need. If you just want to know whether a slot is free or busy, you’re sharing unnecessary data.
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 free/busy data between Google, Outlook, Apple iCloud, KSuite, and iCal feeds
- Creates “Blocked” entries in the target calendar when you have an event elsewhere
- No titles, no attendees, no notes — just free/busy
What Kalender-Sync doesn’t do:
- No scheduling pages
- No dedicated calendar app
- No AI assistant
- No full event copying
| CalendarBridge | Kalender-Sync | |
|---|---|---|
| Sync type | Full events | Free/Busy only |
| Providers | Google, Outlook, Apple | Google, Outlook, Apple, KSuite, iCal |
| Hosting | USA | Germany (Hetzner) |
| Price | From $5/month | Free |
| DPA | On request | Provided |
| Separate app required | Yes (calendar app) | No, runs in the background |
When CalendarBridge Is the Better Choice
If you need meeting scheduling, want a centralized calendar app, or need to copy complete events between accounts (e.g., keeping two Google accounts identical) — 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 only want to sync availability, not copy event content
- Your company requires hosting in Germany or the EU
- You need a DPA (data processing agreement) without weeks of back-and-forth
- 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, but now with free/busy instead of full copies
- Cancel CalendarBridge once you’ve verified everything works
Setup takes under 5 minutes.
