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Traditional Calendar Problems
problem with calendars
Traditional Calendar Problems

Google and Outlook

Slow You Down

They aren’t built to send large calendar invites, don’t let you add personal touches, and end up wasting hours you could spend on more important things.

No Mass Invites

You Waste Hours Adding Guests One by One - Then Hit the Limit.

No Personal Touch

Without Personal Touch, Your Invites Fail to Connect or Engage.

Meet BulkCalendar

Purpose-Built Tool That Saves You Hours

BulkCalendar makes sending, personalizing, and managing large calendar invites effortless — so you can focus on running your events, not fighting your calendar.

Mass Invites in Seconds

Send thousands of invites at once without guest limits or repetitive clicks.

Personalized for Every Guest

Add names, custom notes, and details so every invite feels personal and engaging.

Meet Calzap
Easy Steps

How IT Works?

Save hours of manual work - in just 3 simple steps, personalise every invite and send them directly from your own email and domain.

01

Create Calendar

Add a Personal Touch, Use First Names or Any Data You Choose

02

Import Guests

Copy-paste thousands of emails, or upload a CSV or Excel file

03

Send

Send securely from
your own email or domain

Other benefits

More Power. Less Effort.

BulkCalendar isn’t just a calendar tool — it’s your speed, your brand, and your security all in one place.

Send from Your Email & Domain

Build trust and brand recognition by sending directly from your own email and domain.

Secure Data Storage

Your data is protected with AES-256 encryption — the same standard used by global banks.

No Sending Limits

Reach hundreds or thousands without worrying about caps like Google or Outlook impose.

Email Integrations

Works with SendGrid, Brevo, Mailgun & more for reliable, high-deliverability sending.

Automate Your Invites

Schedule recurring or triggered invites so you never have to send manually again.

Zero Learning Curve

With a simple, intuitive design, you’ll start sending calendar invites in minutes

Compatibility

Works with Every Calendar

Send calendar invites that work seamlessly across all major apps - Google, Outlook, Apple, Yahoo, and more. So your attendees never miss an event.

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Start Sending Your Calendar Invites

Use your Google or Microsoft account to schedule, personalize, and send calendar invites effortlessly

Get Started

Users All Around the World

Trusted by users worldwide

to send millions of calendar invites with ease.

0 +
Users
0 +%
Higher Attendee Turnout
0 M+
Calendar Invites/Month