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Calendly VS HasData

Compare Calendly VS HasData and see what are their differences

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Contents:
  1. ยป Base Details
  2. ยป Videos
  3. ยป Reviews
  4. ยป Alternatives

Calendly logo 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.

HasData logo HasData

HasData is a top web scraping platform for developers and enterprises. It delivers structured, real-time data from the web using scalable APIs and no-code tools, removing the need to manage proxies, browsers, or anti-bot systems.
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  • Calendly Landing page
    Landing page //
    2023-10-14
  • HasData Landing page
    Landing page //
    2025-10-09
  • HasData HasData API's Playground
    HasData API's Playground //
    2025-10-09
  • HasData HasData No-Code Scrapers
    HasData No-Code Scrapers //
    2025-10-09

HasData is one of the best web scraping API platforms built for performance, stability, and scale. It delivers enterprise-grade APIs built for speed, reliability, and accuracy. Businesses that depend on live search data, competitive intelligence, and public web data trust HasData for its consistent performance and transparent infrastructure.

The HasData SERP API is one of the fastest and most reliable on the market. It processes millions of requests per hour with a median latency around 1.75 seconds, providing clean and complete Google Search results without dealing with captchas, proxy management, or rotating browser setups. HasDataโ€™s infrastructure scales horizontally across self-managed Kubernetes clusters to ensure zero downtime during heavy traffic bursts or sustained data-collection workloads.

The HasData Web Scraping API goes beyond search. It provides a unified, resilient system that handles complex scraping tasks automatically โ€” covering dynamic pages, anti-bot protection, and JavaScript rendering. Developers get structured JSON results instantly, with no need to handle HTML parsing, headless browsers, or maintenance overhead.

HasData offers a broad range of specialized APIs, covering key platforms including Google Maps, Zillow, Amazon, Indeed, and many more. Each API is designed for production-level use cases where uptime, precision, and response speed matter more than anything else. Whether for SEO monitoring, price intelligence, lead generation, or market analytics, HasData removes the technical pain points so teams can focus on data, not scraping infrastructure.

For companies that require the best scraping performance without operational risk, HasData is a proven choice. It combines real-time data extraction power, consistent reliability, and developer-friendly APIs to support everything from startups to large enterprises running millions of daily requests.

Calendly

Website
calendly.com
Pricing URL
Official Calendly Pricing
$ Details
-
Platforms
-
Release Date
2013 January
Startup details
Country
United States
State
Georgia
City
Atlanta
Founder(s)
Tope Awotona
Employees
100 - 249
Edit details

HasData

Website
hasdata.com
Pricing URL
Official HasData Pricing
$ Details
Free Trial $49 / Monthly (Up to 200,000 Requests | 15 concurrent requests)
Platforms
Cloud Web Python Node JS PHP Go Zapier Browser
Release Date
-
Startup details
Country
United States
State
TX
City
HOUSTON
Founder(s)
Roman Miliushkevich, Sergey Ermakovich
Employees
10 - 19
Edit details

Calendly features and specs

  • User-Friendly Interface
    Calendly has an intuitive and easy-to-use interface, which simplifies the process of scheduling meetings for both the scheduler and invitee.
  • Integration Capabilities
    Calendly integrates seamlessly with various calendar services (Google Calendar, Outlook, iCal) and other tools like Zoom, Slack, and Salesforce.
  • Customizable Availability
    Users can set their availability preferences down to the minute, allowing for precise control over when they are available for meetings.
  • Automated Reminders
    Calendly automatically sends out reminders to meeting participants, thereby reducing no-shows and ensuring everyone is prepared.
  • Group and Collective Scheduling
    Calendly supports scheduling for groups and teams, making it easier to coordinate meetings with multiple participants.

Possible disadvantages of Calendly

  • Limited Free Plan Features
    The free version of Calendly offers limited features, such as restricted event types and fewer integration options compared to the paid versions.
  • No Option for Meeting Notes
    Calendly does not have built-in functionality for adding detailed meeting agendas or notes directly within the booking system.
  • Learning Curve for Advanced Features
    While basic usage is straightforward, some users may find a steeper learning curve when trying to utilize Calendly's more advanced features.
  • Dependency on Internet Connection
    Calendly relies on a stable internet connection for real-time updates and notifications, which can be a drawback in areas with unreliable connectivity.
  • Privacy Concerns
    Sharing available time slots publicly can sometimes raise privacy concerns, especially for users who are particular about their personal information.

HasData features and specs

  • Sub-2s Median Latency
    Every API request completes in about 2.1 seconds on average, even under high load.
  • 99.9% uptime SLA
    Stay online with highly reliable servers, automated failover, and 24/7 infrastructure monitoring.
  • Up to 10M Requests/Hour
    Handle massive scraping operations with infrastructure built to support 10 million hourly API calls.
  • 100M+ Proxies
    Access hundreds of millions rotating IPs for global coverage and unblockable data collection.
  • JavaScript Rendering
    Extract content from dynamic, JavaScript-heavy websites without manual browser emulation.
  • Auto-Retry & Failover
    Built-in error handling and retries ensure high success rates even under volatile network conditions.
  • Clean Structured Output
    Deliver consistent, parsed JSON with metadata, images, text, listings, and links.
  • Full Anti-Bot Protection
    Bypasses Cloudflare, Datadome, and Akamai automatically โ€” no proxy rotation or browser setup required.
  • Easy Integration
    Connect in minutes using clear API documentation, SDKs, and straightforward REST architecture.

Analysis of Calendly

Overall verdict

  • Calendly is considered a good choice for individuals and businesses looking for an efficient way to manage appointments and streamline their scheduling process. Its ease of use and robust feature set make it a valuable tool for enhancing productivity.

Why this product is good

  • Calendly is a highly regarded scheduling tool due to its user-friendly interface, seamless integrations with other calendar apps like Google Calendar and Outlook, and its ability to automate appointment scheduling. It eliminates the back-and-forth emails needed to find a convenient meeting time. Users appreciate the numerous customization options, such as setting availability, buffer times between meetings, and limiting the number of meetings per day.

Recommended for

  • Professionals who need to manage multiple appointments and meetings.
  • Businesses seeking to provide clients with a straightforward way to schedule consultations.
  • Teams that require coordination and scheduling across different time zones.
  • Freelancers looking to automate client booking processes.

Analysis of HasData

Overall verdict

  • HasData is a solid web scraping and data extraction platform that offers reliable APIs and tools for collecting structured data from websites, making it a good choice for businesses and developers needing scalable data solutions.

Why this product is good

  • Provides ready-to-use scraping APIs that handle proxies, CAPTCHAs, and JavaScript rendering automatically
  • Offers scalable infrastructure suitable for both small projects and large-scale data extraction needs
  • Supports structured data output formats like JSON and HTML for easy integration
  • Includes documentation and developer-friendly tools to speed up implementation
  • Handles anti-bot measures so users can focus on data rather than infrastructure

Recommended for

  • Developers building applications that require automated web data collection
  • Businesses conducting market research and competitor price monitoring
  • E-commerce companies tracking product data and reviews
  • Data analysts and researchers gathering large datasets from the web
  • SEO professionals monitoring search engine results and rankings

Calendly videos

+ Add

Calendly Sucks! Here's What I'm Using Now Instead...

More videos:

  • Tutorial - Calendly Tutorial: Book Yourself Solid on Autopilot
  • Review - Review: Calendly

HasData videos

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

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Category Popularity

0-100% (relative to Calendly and HasData)

Calendly

HasData

Appointments and Scheduling
100 100%
Appointments and Scheduling
0% 0
Data Extraction
0 0%
Data Extraction
100% 100
Appointment Scheduling
100 100%
Appointment Scheduling
0% 0
Web Scraping
0 0%
Web Scraping
100% 100

Questions & Answers

As answered by people managing Calendly and HasData.

What makes your product unique?

HasData's answer:

HasData combines high-speed infrastructure with intelligent web data extraction. Its APIs handle JavaScript rendering, IP rotation, and anti-bot bypassing at scaleโ€”without requiring additional tooling. Developers can integrate once and retrieve clean, reliable data instantly.

Why should a person choose your product over its competitors?

HasData's answer:

Choose HasData for performance, reliability, and simplicity. Its APIs deliver fast response times, high accuracy, and zero hidden limits. The platform is built for real-world scrapingโ€”resilient under load, stable in production, and trusted by high-volume users.

How would you describe the primary audience of your product?

HasData's answer:

HasData serves developers, data engineers, and businesses that need scalable, automated access to public web data. These users build tools, analytics platforms, and competitive intelligence systems powered by structured, real-time information.

What's the story behind your product?

HasData's answer:

HasData was created to eliminate the complexity of large-scale web scraping. Frustrated by fragile scripts, unreliable proxies, and blocked requests, the founders built a unified platform that turns scraping into a dependable API service.

Which are the primary technologies used for building your product?

HasData's answer:

HasData runs on a distributed infrastructure using Golang, Python, and Node.js. It leverages headless Chromium for rendering, Kubernetes for scaling, and global IP rotation systems for reliable data extraction across regions.

Who are some of the biggest customers of your product?

HasData's answer:

HasData serves leading companies in SEO, digital marketing, cybersecurity, and content intelligence. These clients rely on HasData to power large-scale data collection, competitive analysis, plagiarism detection, and local search insightsโ€”handling millions of requests per day without service disruption.

User comments

Share your experience with using Calendly and HasData. 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 Calendly and HasData

Calendly Reviews

  1. Edi Malkovich
    Best scheduling app

    Very simple and easy to use. Eliminate this back and forth hustle with booking calls.

Acuity Scheduling alternatives for businesses outgrowing it
Calendly is the meeting-scheduling default โ€” connect calendars, share a link, and let people book time, with round-robin and team routing on paid tiers. If your "Acuity problem" is really just meetings and your business doesn't hinge on deposits, packages, or a service storefront, Calendly is cleaner and more focused than Acuity for that job. It's not the tool for a salon or...
Source: opencals.com
The Best 24 Appointment Scheduling Apps and Booking Software
I have frequently used Calendly in the past, primarily for scheduling job interviews. What I appreciate about Calendly is that the free version still allows you to connect one calendar, book unlimited meetings, create a custom Calendly link, and send out automatic email notifications and reminders to invitees who book with you.
Source: blog.hubspot.com
neetoCal, a calendly alternative, is a commodity and is priced accordingly
neetoCal is not the first company to compete with Calendly. We are not even the second company to compete with Calendly. We are probably the 30th player in this crowded space. With so many players in the market, scheduling software seems like a commodity.
Source: blog.neeto.com
I've poked around a while ago at some Calendly alternatives (specifically was lo... | Hacker News
Calendly is only $12/month for their professional plan which saves you money if you even schedule only one meeting a month with it.
Source: news.ycombinator.com
The Best Alternatives to Doodle That You Should Check Out
Some may remember the Zoom.ai application. This app has been rebranded as CalendarHero, which resembles Calendly. You can suggest different meetings at different times and then share a link with invitees. Invitees can then indicate their preferred meeting time.
Source: trafft.com

HasData Reviews

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

Based on our record, Calendly seems to be more popular. It has been mentiond 119 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.

Calendly mentions (119)

  • AI Almost Sold Me a Subscription I Didn't Need
    Claude took a different path but landed in the same place. It suggested Calendly, Cal.com (open source), and SavvyCal as products I can subscribe to. When I explained that my work calendar was behind corporate SSO and I cannot use my personal computer to link calendars, it pivoted to bridging apps like Sync My Calendar and DAVx5 to push data from my Android to the cloud. It did mention Google Calendar's Booking... - Source: dev.to / 6 months ago
  • Tools for Building a Modern JavaScript Booking Application
    However, if you are looking for an out-of-the-box solution with minimal technical involvement, it is reasonable to consider SaaS platforms such as Appointedd, Calendly, and Scheduly. These products may not provide the same level of flexibility and customization as the DHTMLX Booking widget, but they can be the right choice when speed and ease of deployment are the main priorities. - Source: dev.to / over 1 year ago
  • Calendly and Accessibility Problems
    Calendly is a scheduling platform. I decided to use Calendly on my homepage, giving someone the ability to choose a time and book a call. - Source: dev.to / over 1 year ago
  • Using Clerk SSO to access Google Calendar and other service data
    BookMate is an open-source, publicly accessible, lightweight clone of popular booking services like cal.com or Calendly. - Source: dev.to / over 1 year ago
  • A list of SaaS, PaaS and IaaS offerings that have free tiers of interest to devops and infradev
    Calendly โ€” Calendly is the tool for connecting and scheduling meetings. The free plan provides 1 Calendar connection per user and Unlimited sessions. Desktop and Mobile apps are also offered. - Source: dev.to / over 2 years ago
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HasData mentions (0)

We have not tracked any mentions of HasData yet. Tracking of HasData recommendations started around Oct 2025.

What are some alternatives?

When comparing Calendly and HasData, you can also consider the following products

Acuity Scheduling - Automate your client bookings, cancellations, reminders & payments using the worlds friendliest online scheduling software.

Apify - Apify is a web scraping and automation platform that can turn any website into an API.

Doodle - Make meetings happen. With Doodle, scheduling becomes quick and easy.

ScrapingBee - ScrapingBee is a Web Scraping API that handles proxies and Headless browser for you, so you can focus on extracting the data you want, and nothing else.

SimplyBook.me - Online scheduling software that offers you a beautiful customisable booking website (or widget to your own website) to accept bookings and payments with the possibility of selling products as well.

Zyte - We're Zyte (formerly Scrapinghub), the central point of entry for all your web data needs.

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