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Opta VS Cal.com

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

TidyCal
Optimize your schedule with custom booking pages and calendar integrations featured
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Opta logo Opta

Opta is a new kind of Infrastructure-As-Code framework designed for fast moving startups.

Cal.com logo Cal.com

Cal.com (formerly Calendso) is the open source Calendly alternative.
  • Opta Landing page
    Landing page //
    2022-01-04
  • Cal.com Landing page
    Landing page //
    2023-10-08

Opta videos

+ Add

OPTA Review

More videos:

  • Review - Opta Expected Goals
  • Review - OPTA Unisex Black SB - 108 Smartwatch - Unboxing and Review | OPTA Smartwatch | Giveaway

Cal.com videos

+ Add

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 Opta and Cal.com)

Opta

Cal.com

Developer Tools
100 100%
Developer Tools
0% 0
Productivity
7 7%
Productivity
93% 93
APIs
100 100%
APIs
0% 0
Appointments and Scheduling
0 0%
Appointments and Scheduling
100% 100

User comments

Share your experience with using Opta and Cal.com. For example, how are they different and which one is better?
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Reviews

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

Opta Reviews

We have no reviews of Opta yet.
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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
Source: news.ycombinator.com

Social recommendations and mentions

Based on our record, Cal.com seems to be more popular. It has been mentiond 53 times since March 2021. 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.

Opta mentions (0)

We have not tracked any mentions of Opta yet. Tracking of Opta recommendations started around Oct 2021.

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 / 2 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: 5 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 / 5 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: 7 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: 7 months ago
View more

What are some alternatives?

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

Neuro - Instant infrastructure for machine learning

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.

Filestack - Simple file uploader and robust APIs for uploading, transforming, and delivering any file into your app. Filestack is a collection of tools and powerful APIs that make it simple to upload, transform, and deliver content.

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

Elph Plasma - Highly scalable blockchain infrastructure for Ethereum

zcal - zcal is the fastest way to schedule every meeting for Free and make it personal.

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