Send UnlimitedCalendar Invites That Actually Get Accepted
Break through calendar invitation limits and automate your webinar & meeting outreach — no more missed invites, no more no-shows.
99%
Invitation delivery rate
4.5x
Higher webinar attendance
Calendar invite accepted!
25 more people registered for your webinar
Why Tantra's Calendar Automation?
Focus on what matters now, with a clear path to omni-channel outreach
Unlimited Invites
Evade calendar providers' sending limits without risk of bans.
99% Delivery Rate
Your invites land in inboxes, not spam folders.
Automated Reminders
Maximize attendance with smart follow-up sequences.
Easy Setup
Import contacts & launch campaigns in minutes.
Coming Soon: Multi-Channel Outreach
Plan for email, LinkedIn, WhatsApp, SMS & Telegram — all in one unified inbox for seamless omni-channel campaigns.
TRUSTED BY MARKETERS WHO USE THE WORLD'S BEST OUTREACH TOOLS
The Problem: Calendar Invitation Limits
Calendar providers limit how many invites you can send, leading to empty webinars and lost revenue.
- Calendar providers limit how many invites you can send
- Mass invitations often get filtered as spam
- No automated reminder system for webinar attendees
- Lack of tracking capabilities for invitation opens
The Solution: Tantra's Calendar Automation
Tantra bypasses these limits with unlimited calendar invites + automated reminders that boost attendance — all in a simple, powerful platform.
- Send unlimited calendar invites without hitting provider limits
- Guarantee delivery with our proprietary sending system
- Automate reminders to reduce no-shows by up to 68%
- Track opens and RSVPs with detailed analytics
4.5x
Higher webinar attendance with calendar invites
2.7x
Increase in response rates with personalization
68%
Reduction in no-show rates with smart reminders
5x
ROI compared to manual calendar outreach
Powerful Features to Supercharge Your Outreach
Everything you need to create, automate, and optimize your calendar outreach campaigns
Webinar Invitation Power
Bypass calendar invitation limits and reach your entire audience with webinar invites that never get filtered out.
- Unlimited calendar invites to any size audience
- 99% delivery guaranteed for maximum reach
- Automated reminders to boost attendance rates
Personalized Invites
Use dynamic fields to personalize every aspect of your calendar invites and make them stand out.
- Personalized subject lines and messages
- Custom event titles and descriptions
- Dynamic content blocks and CTAs
Advanced Analytics
Track key metrics and optimize your campaigns with real-time insights and detailed reports.
- Open, click, and acceptance rates
- No-show and attendance tracking
- Campaign performance comparison
CSV Import & Mapping
Easily import contacts from any source and map fields with our intelligent contact management system.
- One-click CSV import with validation
- Smart field mapping and recognition
- Duplicate detection and removal
Smart Scheduling
Optimize send times and automatically adjust to time zones for maximum engagement rates.
- AI-powered optimal send times
- Automatic time zone detection
- Working hours configuration
Omnichannel Ready
Start with calendar outreach and seamlessly add new channels as they become available.
- One unified dashboard for all channels
- Cross-channel campaign synchronization
- Early access to new channels
How Tantra Works
Create, launch, and optimize your webinar invitation campaigns in minutes
Create Your Campaign
Set up your multi-step sequence with custom messaging, timing, and personalization in our intuitive campaign builder.
- Design your campaign flow
- Craft personalized messages
- Set up timing and conditions
Import Your Contacts
Quickly import and validate your contact list with our smart CSV import and mapping tool.
- Upload CSV or paste data
- Map fields with smart detection
- Validate and clean data
Launch & Optimize
Schedule your campaign, monitor performance in real-time, and optimize for better results.
- Schedule and automate deployment
- Track results in real-time
- A/B test for optimal performance
See Tantra in Action
Watch a quick demo of how Tantra can transform your calendar outreach
What Marketers Are Saying
See how Tantra is helping marketers boost meeting attendance and conversions
"Since implementing Tantra's calendar campaigns, our webinar attendance rates have increased by 42%. The automated follow-ups and reminders have been a game-changer for our team."
Sarah Johnson
Marketing Director, TechCorp
"The personalization capabilities in Tantra are incredible. Our prospects feel like the invites are made just for them, which has dramatically improved our conversion rates."
Michael Chen
Growth Lead, StartupX
"We reduced our no-show rates by 65% with Tantra's smart reminder system. The analytics dashboard gives us incredible insights to keep improving our campaigns."
Emma Williams
Webinar Specialist, MarketPro
Choose the Plan That's Right for You
We offer flexible pricing options to fit your needs
Basic Plan
Ideal for small teams and occasional use
- Access to basic features
- Limited campaign creation
- Basic analytics
Pro Plan
Ideal for growing teams and regular use
- Access to all features
- Unlimited campaign creation
- Advanced analytics
Enterprise Plan
Ideal for large teams and dedicated use
- Access to all features
- Unlimited campaign creation
- Advanced analytics
Frequently Asked Questions
Everything you need to know about Tantra's calendar outreach platform
How does Tantra's calendar outreach work?
Tantra allows you to create and automate multi-step calendar outreach campaigns. You can design your campaign flow, import contacts, and launch personalized calendar invites with automated follow-ups and reminders. Our platform integrates with your existing calendar system to provide a seamless experience.
Which calendar systems do you support?
Tantra currently integrates with Google Calendar, Microsoft Outlook, and Apple Calendar. We're constantly adding support for additional calendar systems based on customer demand.
How does Tantra help reduce no-shows?
Tantra reduces no-shows through a combination of personalized invites, automatic reminders at optimal times, and engagement tracking. Our system can detect when invitees haven't viewed or accepted invites and automatically send targeted follow-ups to maximize attendance.
Can I import my existing contacts?
Yes, Tantra makes it easy to import contacts from CSV files, Google Contacts, or your CRM system. Our smart mapping tool automatically identifies and maps contact fields, saving you time and ensuring your data is correctly imported.
How secure is my data with Tantra?
Security is our top priority. Tantra uses industry-standard encryption protocols, regular security audits, and strict access controls to protect your data. We are GDPR compliant and never share your contact information with third parties.
What kind of analytics do you provide?
Tantra provides comprehensive analytics including open rates, response rates, meeting acceptance rates, attendance rates, and no-show metrics. You can track campaign performance over time and compare different campaigns to optimize your outreach strategy.
When will other channels be available?
Currently, we've fully implemented our calendar invitation features for webinar and meeting outreach. Other channels like email, LinkedIn, WhatsApp, and SMS are in active development and will be released in the coming months. Multi-step campaigns across multiple channels will be available once these additional channels are integrated.
Ready to Transform Your Calendar Outreach?
Join the growing community of marketers who have increased their meeting attendance rates by up to 60% with Tantra.