
Calendly
Cal.com
TidyCal
SavvyCal
Doodle
Acuity Scheduling
Zencal
zcal is the fastest way to schedule every meeting for Free and make it personal.

Axolo
PullNotifier
GitNotifier.com
Axolo for GitLab
Swarmia
Pullflow
GitLab
Replace GitLab's spammy Slack notifications with PRFlow. One updating message per MR with CI/CD status and threaded comments for gitlab.com and self-hosted GitLab.

Which is more popular?
Based on our record, zcal seems to be more popular. It has been mentioned 6 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | zcal.co | prflow.dev |
| Pricing | ||
| Platforms | ||
| Company | 2021 | โ |
| Listed in |
In their own words, as submitted to SaaSHub.


Say goodbye to cold, impersonal scheduling links. Use zcal to create beautiful, personalized booking pages that make a great first impression on your guests. It's 100% Free Forever ๐ฅ! If everyone agrees that scheduling links help save time, then why are they so universally unloved? Today most...
No description of PRFlow.dev yet.
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
Zcal is recommended for individuals and professionals who frequently set up meetings or appointments, such as business professionals, freelancers, and entrepreneurs, as well as for teams and organizations that require a reliable and easy-to-use scheduling solution.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Meet zcal, the FREE personal Calendly alternative
More videos
No PRFlow.dev videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0โ100% relative to the other.


As answered by people managing zcal and PRFlow.dev.
PRFlow.dev's answer:
Go backend PostgreSQL DB, React/TypeScript frontend.
PRFlow.dev's answer:
Engineering teams using GitLab.com or self-managed and Slack.
PRFlow.dev's answer:
Engineered for simplicity and security. Native GitLab support.
Share your experience with using zcal and PRFlow.dev. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


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 PRFlow.dev yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


>ended up just switching over to https://zcal.co and it has been great so far Wait wait wait. It can sync my Google and Outlook calendars into a single scheduling service, and they're not charging me anything? What's the catch here? - Source: Hacker News / almost 4 years ago
I've poked around a while ago at some Calendly alternatives (specifically was looking for something that was cheaper than Calendly with most of the basic features). I tried using cal.com for a bit but ended up just switching over to... - Source: Hacker News / almost 4 years ago
There's an even a freer alternative, not FOSS though. http://zcal.co It also allows connection to multiple calendars. - Source: Hacker News / almost 4 years ago
Tracking PRFlow.dev since Jun 2026.
When comparing zcal and PRFlow.dev, 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.
Compare Calendly to zcal or PRFlow.dev:


Cal.com (formerly Calendso) is the open source Calendly alternative.
Compare Cal.com to zcal or PRFlow.dev:

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.
Compare PullNotifier to zcal or PRFlow.dev:

Optimize your schedule with custom booking pages and calendar integrations
Compare TidyCal to zcal or PRFlow.dev:

Stop dragging GitHub Pull Request reviews for days. Get Slack DM notifications: PR reviews, react & reply to comments, CI/CD failure alerts.
Compare GitNotifier.com to zcal or PRFlow.dev: