
Calendly
Acuity Scheduling
TidyCal
zcal
SavvyCal
SetMore
Doodle
Cal.com (formerly Calendso) is the open source Calendly alternative.

SessionLab
AgendaTrac
MeetingPlanner.io
UX Agenda
Workshop Timer
Miro
Mural
Create workshop agendas using an intuitive timeline. Blocks, groups, breakout sessions – all via drag and drop. Save and share via a link, no account required

Which is more popular?
Based on our record, Cal.com seems to be more popular. It has been mentioned 60 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | cal.com | sessionplan.de |
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What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
What can you do with Cal? | Cal.com Version 1.1 Launch | 10 new languages
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Cal.com and Sessionplan.
Sessionplan's answer:
Sessionplan combines a visual, timeline-based planning experience with a strong commitment to simplicity and privacy. No account, no cloud, no cost — ever. Everything runs locally in your browser, making it fast, private, and accessible to anyone without any setup.
Sessionplan's answer:
Sessionplan is 100% free with no premium tiers or hidden costs. Unlike many competing tools, it requires no registration and stores no data in the cloud. It's lean, focused, and gets you from zero to a structured agenda in minutes.
Sessionplan's answer:
Trainers, coaches, facilitators, Scrum Masters, teachers, and event organizers — anyone who needs to plan a structured session and wants a simple, reliable tool without the overhead of complex software.
Sessionplan's answer:
Sessionplan was born out of a real frustration: existing tools were either too complex, too expensive, or both. As a professional facilitator, I needed something simple and reliable for my own work — so I built it myself. What started as a personal tool has since grown into a free resource for trainers, coaches, and facilitators around the world.
Share your experience with using Cal.com and Sessionplan. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


The honest read: if you're leaving Acuity because your business outgrew simple scheduling — you need deposits, add-ons, multiple staff and locations, and ideally a booking site you own — Opencals is built for exactly...
I tried using https://cal.com for a bit but ended up just switching over to https://zcal.co and it has been great so far. All these other scheduling tools end up trying to do too much and always seem to end up a bit...
We have no reviews of Sessionplan yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Then for the component library, I was really into coss ui. I stumbled upon it randomly one day and loved it so much. My Nathan's AI project already had a UI heavily inspired by cal.com: send button, message suggestions... So when I saw... - Source: dev.to / 7 months ago
I keep coming back to what would have happened if I didn't have a strong technical understanding of how calendar technology works — the difference between local and cloud calendars, what an ICS feed is, why enterprise auth blocks... - Source: dev.to / 7 months ago
Plausible brought open source to web analytics. Cal.com did it for scheduling. Formbricks did it for surveys. PostHog did it for product analytics. Quackback does it for feedback collection. - Source: dev.to / 8 months ago
Tracking Sessionplan since Apr 2026.
When comparing Cal.com and Sessionplan, you can also consider the following products.

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SessionLab is the dynamic way to design your workshop and collaborate with your co-facilitators.
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Automate your client bookings, cancellations, reminders & payments using the worlds friendliest online scheduling software.
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Optimize your schedule with custom booking pages and calendar integrations
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Simple online scheduling tool for group meetings
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