OpenCV
Extism
TensorFlow
CImg
PyTorch
PostSharp
MATLAB
Application and Data, Languages & Frameworks, and Language Extensions

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

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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OCL
OpenCL
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| Website | en.wikipedia.org | cal.com |
| Pricing | — | |
| Listed in |
What each product offers, as listed by its team.

No features have been listed yet.
Possible disadvantages
An editorial look at what each product does well and who it suits.

No analysis of OpenCL yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Episode 1: What is OpenCL™?
More videos
What can you do with Cal? | Cal.com Version 1.1 Launch | 10 new languages
More videos
How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using OpenCL and Cal.com. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.

We have no reviews of OpenCL yet. Be the first one to post
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...
Recommendations tracked on public social media and blogs since March 2021.

Tracking OpenCL since Mar 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 / 7 months ago
When comparing OpenCL and Cal.com, you can also consider the following products.


Say goodbye to phone and email tag for finding the perfect meeting time with Calendly. It's 100% free, super easy to use and you'll love our customer service.
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Extism is the open source, universal plug-in system. Extend all the software everywhere! Powered by WebAssembly.
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Automate your client bookings, cancellations, reminders & payments using the worlds friendliest online scheduling software.
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TensorFlow is an open-source machine learning framework designed and published by Google. It tracks data flow graphs over time. Nodes in the data flow graphs represent machine learning algorithms. Read more about TensorFlow.
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Optimize your schedule with custom booking pages and calendar integrations
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