Calendly vs Untis Comparison: Reviews, Features, Pricing & Alternatives in 2026

Detailed side-by-side comparison to help you choose the right solution for your team

Updated Apr 2026 8 min read

Calendly

0.0 (0 reviews)

Calendly is an automated scheduling platform that eliminates back-and-forth emails by allowing others to book meetings directly on your calendar based on your real-time availability and custom preferences.

Starting at Free
Free Trial 14 days
VS

Untis

0.0 (0 reviews)

Untis is a comprehensive school scheduling and resource management software designed to automate complex timetable creation while managing daily substitutions and school communication for educational institutions.

Starting at --
Free Trial 0 days

Quick Comparison

Feature Calendly Untis
Website calendly.com untis.at
Pricing Model Freemium Custom
Starting Price Free Custom Pricing
FREE Trial ✓ 14 days free trial ✓ 0 days free trial
Free Plan ✓ Has free plan ✘ No free plan
Product Demo ✓ Request demo here ✓ Request demo here
Deployment cloud mobile desktop saas on-premise mobile desktop
Integrations Google Calendar Outlook Zoom Salesforce HubSpot Slack Stripe PayPal Microsoft Teams Zapier Microsoft Teams WebUntis Moodle LDAP Active Directory Various School MIS Systems
Target Users solopreneur small-business mid-market enterprise small-business mid-market enterprise
Target Industries education
Customer Count 0 0
Founded Year 2013 1970
Headquarters Atlanta, USA Stockerau, Austria

Overview

C

Calendly

Calendly simplifies the way you schedule meetings by removing the frustrating back-and-forth of email chains. You simply set your availability preferences, share your personal link, and let invitees pick a time that works for everyone. It automatically syncs with your existing calendars to ensure you are never double-booked and sends instant confirmations to all parties involved.

You can use it for everything from simple one-on-one check-ins to complex group sessions and round-robin sales calls. The platform handles the time zone conversions and reminder notifications automatically, so you can focus on the actual meeting rather than the logistics of setting it up. It scales easily from individual freelancers to large global enterprises requiring advanced security and team routing.

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Untis

Untis helps you master the complex challenge of school scheduling and daily resource management. You can automate the creation of conflict-free timetables that account for teacher availability, room constraints, and specific pedagogical requirements. The platform moves beyond static schedules by allowing you to manage daily substitutions, room changes, and cancellations in real-time, ensuring your school day runs smoothly even when the unexpected happens.

You can bridge the communication gap between administration, teachers, students, and parents through integrated web and mobile applications. Whether you are managing a small primary school or a large multi-campus university, the software scales to handle your specific organizational structure. By digitizing your class registers and grade books, you eliminate paperwork and centralize all essential school data in one secure location.

Overview

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Calendly Features

  • Calendar Sync Connect up to six calendars per user to automatically check your real-time availability and prevent any double-bookings.
  • Automated Workflows Send automated thank-you notes, meeting reminders, and follow-up emails to your invitees to reduce no-shows and save time.
  • Round Robin Scheduling Distribute incoming meetings automatically among your team members based on availability, priority, or equal distribution logic.
  • Meeting Polls Vote on preferred times for large group meetings and let the majority decide the best slot without endless email threads.
  • Custom Branding Remove the Calendly logo and add your own branding to booking pages for a professional, cohesive client experience.
  • Payment Integrations Collect payments via Stripe or PayPal directly at the moment of booking to streamline your billing process.
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Untis Features

  • Automated Timetabling. Generate complex school schedules automatically while satisfying thousands of individual constraints for teachers, classes, and rooms.
  • Substitution Planning. Manage daily teacher absences and room changes instantly with smart suggestions that minimize educational disruption.
  • Digital Class Register. Track student attendance, document lesson content, and manage homework assignments digitally from any web-enabled device.
  • Untis Mobile App. Access your personalized schedule and receive instant push notifications about room changes or cancellations on your smartphone.
  • Resource Management. Coordinate the booking of specialized rooms, laboratory equipment, and shared school vehicles to prevent double-bookings.
  • Parent-Teacher Communication. Schedule parent-teacher conferences and share student progress reports through a secure, centralized communication portal.

Pricing Comparison

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Calendly Pricing

Free
$0
  • 1 calendar connection
  • Unlimited one-on-one events
  • One event type
  • Automated event notifications
  • Mobile app access
U

Untis Pricing

Pros & Cons

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Calendly

Pros

  • Eliminates repetitive back-and-forth emails effectively
  • Automatic time zone detection works flawlessly
  • Clean and intuitive interface for invitees
  • Seamless integration with major calendar providers

Cons

  • Free version limited to one event type
  • Customization options restricted on lower tiers
  • Workflows can be complex to set up initially
A

Untis

Pros

  • Powerful automation engine handles extremely complex scheduling constraints
  • Real-time synchronization between administration and the mobile app
  • Modular structure allows schools to scale features as needed
  • Highly reliable performance even for very large educational institutions

Cons

  • Significant learning curve for new administrative users
  • Interface feels dated compared to modern consumer apps
  • Initial configuration requires a substantial time investment
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