Never Get Double-Booked Again

Sync your Google Calendar, Outlook, and Apple Calendar in real-time. Smart blocker and mirror modes keep all your calendars perfectly aligned.

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Joined by 1,200+ busy professionals across 40+ countries

How It Works

Get your calendars synced in three simple steps.

Step 1

Connect

Link your Google Calendar and Microsoft Outlook accounts in seconds with secure OAuth.

Step 2

Configure

Choose blocker mode to prevent double-booking, or mirror mode for full two-way sync.

Step 3

Relax

Your calendars stay in sync automatically. Double-bookings become a thing of the past.

Everything You Need

Powerful features to keep your calendars perfectly synchronized.

Real-time Sync

Your calendars update the moment an event is added, changed, or deleted.

Blocker Mode

Automatically create busy blocks to prevent double-booking across calendars.

Mirror Mode

Full two-way sync that mirrors event details between calendars.

Multi-provider

Works with Google Calendar, Microsoft Outlook, and Apple Calendar.

Privacy First

Your data is encrypted at rest and in transit. We never read your events.

Always Protected

Busy blockers are placed the instant an event is created, before anyone can book the same slot.

Developer API

REST API with key-based auth for custom integrations and automations.

Sound Familiar?

CalendarSync was built to solve the scheduling headaches that cost professionals time and clients.

The Double-Booked Freelancer

Before

You use Google Calendar for personal clients and Outlook for your agency work. A client books a slot via Calendly, but that slot is already taken on your other calendar.

After CalendarSync

The moment a meeting lands on either calendar, a busy block appears on the other instantly. Your availability is always accurate, everywhere.

The Work/Life Juggler

Before

You have a work Google account and a personal one. Your family books you for dinner on a night you have a late client call, because they can't see your work calendar.

After CalendarSync

Work events silently appear as "Busy" on your personal calendar. No details shared, just protected time. Both lives, perfectly balanced.

The Multi-Company Consultant

Before

You're embedded with three clients, each using their own Outlook org. Their assistants keep scheduling calls on top of each other because no one can see your full availability.

After CalendarSync

All three calendars sync into one unified view. Book time with one client and the others are automatically blocked. One schedule, zero chaos.

Simple, Transparent Pricing

Start free, upgrade when you need more power.

Free Trial

$0for 14 days

2 calendar connections
1 sync pair
One-way sync (A → B)
Blocker mode
15-minute sync interval
7-day log retention

Start Free Trial

Pro

$7/monthMost Popular

Unlimited connections
Unlimited sync pairs
Two-way sync (A ↔ B)
Blocker + Mirror modes
Instant sync
30-day log retention
Priority email support
REST API access

Upgrade to Pro

Ready to Simplify Your Schedule?

Join thousands of professionals who never worry about double-bookings.

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