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

Axolo
Swarmia
PullNotifier
Pullflow
PRFlow.dev
Axolo for GitLab
Actioner
Stop dragging GitHub Pull Request reviews for days. Get Slack DM notifications: PR reviews, react & reply to comments, CI/CD failure alerts.

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 | gitnotifier.com |
| Pricing | ||
| Company | — | Startup from France · 1 - 9 employees · 2025 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Cal.com yet.
GitNotifier - The best GitHub PR Notifications for Slack GitNotifier delivers high-signal GitHub pull request notifications directly to your Slack DMs, cutting through the noise so your team can ship faster. GitHub's native Slack integration floods channels with low-context events. Developers...
What each product offers, as listed by its team.


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


Overall verdict
Why this product is good
Recommended for
No analysis of GitNotifier.com yet.
Walkthroughs and reviews on video.
What can you do with Cal? | Cal.com Version 1.1 Launch | 10 new languages
More videos
No GitNotifier.com videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Cal.com and GitNotifier.com.
GitNotifier.com's answer:
Cloudflare Edge serverless for blazing fast notifications.
GitNotifier.com's answer:
It's cheaper and reduce the noise as GitNotifier sends the notifications directly on your Slack DMs.
GitNotifier.com's answer:
Share your experience with using Cal.com and GitNotifier.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.


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 GitNotifier.com 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 / 8 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 / 9 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 / 9 months ago
Tracking GitNotifier.com since Jul 2026.
When comparing Cal.com and GitNotifier.com, you can also consider the following products.

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Automate your client bookings, cancellations, reminders & payments using the worlds friendliest online scheduling software.
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Swarmia is an engineering productivity software trusted by 600+ engineering teams worldwide. Use key engineering metrics to unblock the flow, align engineering with business objectives, and drive continuous improvement.
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Optimize your schedule with custom booking pages and calendar integrations
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PullNotifier - a Github and Slack integration app. The most efficient Pull Request notifications on Slack -> PullNotifier allows you to see your team's latest pull request status without getting spammed with notifications.
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