Software Alternatives, Accelerators & Startups

Cal.com VS quackr

Compare Cal.com VS quackr and see what are their differences

Cal.com logo Cal.com

Cal.com (formerly Calendso) is the open source Calendly alternative.

quackr logo quackr

Protect your privacy & identity with quackr. Use our free temporary phone numbers to receive SMS online now.
  • Cal.com Landing page
    Landing page //
    2023-10-08
  • quackr Landing page
    Landing page //
    2023-08-22

quackr is a free platform that allows you to receive sms online instantly. We have temporary phone numbers from 10 countries including the US, UK & Canada.

At quackr, we believe privacy is very important - we provide phone numbers so you can use them instead of your real phone number on the internet. quackr is the perfect security tool to use if you're apprehensive about giving out your phone number online.

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

quackr videos

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

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Category Popularity

0-100% (relative to Cal.com and quackr)
Productivity
100 100%
0% 0
Communication
0 0%
100% 100
Appointments and Scheduling
VoIP
0 0%
100% 100

User comments

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Reviews

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

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

quackr Reviews

We have no reviews of quackr yet.
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Social recommendations and mentions

Cal.com might be a bit more popular than quackr. We know about 53 links to it since March 2021 and only 48 links to quackr. 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.

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 / 4 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: 7 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 / 7 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: 9 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: 9 months ago
View more

quackr mentions (48)

  • Did people really use "burner phones"?
    I'm also curious because it seems like using a phone with no strings attached today seems almost impossible unless you get an actually old phone, which either works poorly or costs a lot as part of a retro collection or something. Even my iPhone 4S doesn't work if I boot it up, and that came out last decade. Of course, in terms of using a number for making a new account or subscription of sorts, one could still be... Source: 10 months ago
  • I'm back and the chair has never been stronger.
    You can also take this poll over at bettor edge, and whichever team gets the most votes, will get an extra 5k donated to their respective charity (the loser will still get a 1k donation). So if you are so inclined, head over there and vote for the huskers and Team Jack. Right now we're losing 65% to 35% to the gophers on who should get the extra donation so vote if you can! Note they ask for a phone number to... Source: 11 months ago
  • Why is Whatsapp so popular in India?
    To be very frank, I was also thinking that another reason people tend to use Whatsapp is that it’s not really tied to any actual account as in the case of iCloud, right? It’s just a phone number that’s required, and so if you want to stay private, or just log in with a fake account, you can use a free phone number for verification, just as you would do with some disposable temporary mail when you want to log in to... Source: 11 months ago
  • Has anyone used temporary phone numbers for app registration worth it?
    While searching for another way out, I stumbled upon a service called quackr.io. It claims to provide temporary phone numbers for registration confirmation purposes. Using fake numbers for app verification is quite tempting, and I read that it's a savior when it comes to website registration. Still, I'm unsure if it's worth the effort because I also read many claiming that temporary phone numbers don't work with... Source: 12 months ago
  • Best sites for free sms
    Idk if this is the right subreddit for this question, but hopin I dont get banned XD. I want to get a verification code for something, but I dont have a phone number that I can use. Does anyone know any free sms sites that will let me get a code? The only one I found so far is quackr.io, but the site where I want to verify says that it only accpets mobile numbers whenever I try on the numbers on quackr. Source: about 1 year ago
View more

What are some alternatives?

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

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

Textverified - Textverified is a website that is designed as a phone verification service, allowing the user to bypass the phone verifications and receive codes through social media websites and applications.

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.

Receivesms.co - Receivesms.co is a website that offers virtual and real phone numbers, providing you an opportunity to bypass the SMS, Text, and Call verifications on social media platforms like Twitter, Facebook, Instagram, Telegram, WhatsApp, eBay, and others.

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

Freephonenum - Freephonenum is a website that receives online SMS, use temporary and disposable numbers from USA and Canada to get verifications code from all around the world for development.