Software Alternatives, Accelerators & Startups

Knock App VS Cal.com

Compare Knock App VS Cal.com and see what are their differences

Knock App logo Knock App

Power your product notifications with Segment and Hightouch.

Cal.com logo Cal.com

Cal.com (formerly Calendso) is the open source Calendly alternative.
  • Knock App Landing page
    Landing page //
    2023-05-05
  • Cal.com Landing page
    Landing page //
    2023-10-08

Knock App videos

No Knock App videos yet. You could help us improve this page by suggesting one.

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Cal.com videos

What can you do with Cal? | Cal.com Version 1.1 Launch | 10 new languages

More videos:

  • Review - Cal.com Version 1.0 Launch Event

Category Popularity

0-100% (relative to Knock App and Cal.com)
Developer Tools
100 100%
0% 0
Productivity
0 0%
100% 100
Web Push Notifications
100 100%
0% 0
Appointments and Scheduling

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Knock App and Cal.com

Knock App Reviews

6 Best Notification Infrastructure for Modern Applications
Knock is the most powerful notification system, capable of scaling with the users’ demands. Its unified API effortlessly handles the most complex of use cases and offers flexibility in providing user engagement, managing cross-channel workflows, and choosing notification preferences.
Source: geekflare.com

Cal.com Reviews

I've poked around a while ago at some Calendly alternatives (specifically was lo... | Hacker News
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 clunky and charge absurd amounts for it

Social recommendations and mentions

Based on our record, Cal.com seems to be a lot more popular than Knock App. While we know about 53 links to Cal.com, we've tracked only 4 mentions of Knock App. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Knock App mentions (4)

Cal.com mentions (53)

  • Start your own (side) business with open-source in mind
    Cal.com is an open-source event-juggling scheduler for everyone, and is free for individuals. - Source: dev.to / 3 months ago
  • Fellow HSP entrepreneurs, how do you manage your energy and stress?
    I force clients who want to talk to me to book a call. I use cal.com (free) and my Google Calendar (which its linked to) only allows calls on specific days/times. I have a few "Call Blocks" where they can book. That let's me do calls in a small section of my week, with ample downtime to recover the rest of the week. I'm still learning how many calls a day I can handle. Currently anything more than 2 is too much. Source: 6 months ago
  • 🔥🔥 Our awesome OSS friends 😍
    Cal.com- Cal.com is a scheduling tool that helps you schedule meetings without the back-and-forth emails. - Source: dev.to / 6 months ago
  • Cal.com Selfhost Issue: Deploying cal.com on selfhost environment gives prisma is not defined issue.
    Has any one deployed cal.com with selfhosted environment. Is yes how would have configured prisma for the same. Source: 8 months ago
  • Open Source, EVERYTHING??
    Recently I came across a company called cal.com, it's a Calendly alternative, but the catch is the entire software is open source: https://github.com/calcom/cal.com. Source: 8 months ago
View more

What are some alternatives?

When comparing Knock App and Cal.com, you can also consider the following products

SuprSend - Single Notification API for Every Channel (SMS, Slack, Whatsapp, Email, SMS, Push, App Inbox)

TidyCal - Optimize your schedule with custom booking pages and calendar integrations

MagicBell - Your app needs a notification inbox – with real-time sync, web & mobile push, and a UI that matches your brand.

SavvyCal - A scheduling tool both the sender and the recipient will love.

Courier - Courier is a notification API built for developers. Design once, and deliver to any channel – email, Slack, SMS, push, and more – all through a single API.

Calendly - 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.