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

MoonshotNX
Dealroom.co
Y-Combinator
Find-Investor.com
Attio
Google Ventures Library
Lighthouse VC
Software for raising venture capital and managing investor relations. Used by startups, investors, accelerators and financial intermediaries
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 | fundingstack.com |
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What each product offers, as listed by its team.


Possible disadvantages
No features have been listed yet.
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
More videos
How to Raising Funding for Business with Nathan Beckord - CEO of Fundingstack and Foundersuite
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Cal.com and Fundingstack. 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 Fundingstack 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 / 6 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
Tracking Fundingstack since Aug 2024.
When comparing Cal.com and Fundingstack, 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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Investor RelationAI-powered venture capital startup fundraising platform helping founders prepare for investors, structure valuation, build investor data rooms, and raise seed or Series A venture capital through a structured capital execution system.
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Automate your client bookings, cancellations, reminders & payments using the worlds friendliest online scheduling software.
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Identify promising companies before everyone else. Dealroom helps professional investors, corporates and local governments to discover & track innovative tech companies.
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Optimize your schedule with custom booking pages and calendar integrations
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Y Combinator provides seed funding for startups.
Compare Y-Combinator to Cal.com or Fundingstack: