Calendly
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.
UniTime
UniTime is a comprehensive open-source academic scheduling solution that helps you manage course timetabling, student scheduling, and examination planning within a single integrated web-based platform.
Quick Comparison
| Feature | Calendly | UniTime |
|---|---|---|
| Website | calendly.com | unitime.org |
| Pricing Model | Freemium | Free |
| Starting Price | Free | Free |
| FREE Trial | ✓ 14 days free trial | ✘ No free trial |
| Free Plan | ✓ Has free plan | ✓ Has free plan |
| Product Demo | ✓ Request demo here | ✓ Request demo here |
| Deployment | ||
| Integrations | ||
| Target Users | ||
| Target Industries | ||
| Customer Count | 0 | 0 |
| Founded Year | 2013 | 2002 |
| Headquarters | Atlanta, USA | West Lafayette, USA |
Overview
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.
UniTime
UniTime is an open-source academic scheduling platform designed to solve the complex logistical challenges of higher education institutions. You can coordinate course timetabling, manage student sectioning, and organize examination schedules while accounting for specific constraints like room availability and faculty preferences. The system uses advanced optimization algorithms to ensure your schedules are efficient and conflict-free.
You can also manage event room reservations and track departmental requirements through a unified web interface. Because it is open-source and based on the Comprehensive Academic Scheduling System, you have the flexibility to host it on your own servers and customize it to fit your university's unique administrative workflows. It is particularly effective for large universities managing thousands of students and diverse course offerings.
Overview
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.
UniTime Features
- Course Timetabling. Build complex course schedules automatically while balancing instructor preferences, room capacities, and student needs without manual errors.
- Student Scheduling. Optimize student registrations by automatically placing them into course sections that fit their individual requirements and academic goals.
- Examination Timetabling. Create conflict-free exam schedules for midterms and finals by managing room assignments and student seating plans simultaneously.
- Event Management. Manage non-academic room bookings and departmental events through a centralized calendar that prevents double-bookings across your campus.
- Instructor Management. Track faculty availability and workload requirements to ensure your teaching staff is assigned to the right rooms at the right times.
- Constraint Solver. Apply custom rules and constraints to your schedules to meet specific departmental policies or physical accessibility requirements automatically.
Pricing Comparison
Calendly Pricing
- 1 calendar connection
- Unlimited one-on-one events
- One event type
- Automated event notifications
- Mobile app access
- Everything in Free, plus:
- Connect 2 calendars per user
- Unlimited active event types
- Group and collective events
- Reminders and follow-ups
- Custom branding on booking pages
UniTime Pricing
- Full access to all modules
- Unlimited users and students
- Self-hosted deployment
- Apache License 2.0
- Community-driven updates
- API and database access
- Everything in Open Source, plus:
- Public documentation access
- Community mailing list
- Bug reporting via GitHub
- Contribute to source code
- No vendor lock-in
Pros & Cons
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
UniTime
Pros
- Completely free with no recurring licensing costs
- Highly flexible and customizable for unique needs
- Handles massive datasets for large university systems
- Strong optimization algorithms reduce scheduling conflicts
- Active community support and regular software updates
Cons
- Requires significant technical expertise to install
- User interface feels dated compared to SaaS
- Initial configuration and setup is time-consuming