Software Alternatives & Startups
Register | Login

AddCal VS GitHub Surf

Compare AddCal VS GitHub Surf and see what are their differences

AddCal

Add-to-calendar links, RSVPs and subscription calendars for events

Rating
0 reviews
Pricing
Freemium $12 / Monthly (Premium Plan)
Promote on VibeVoted
Alternatives Is it good?
GitHub Surf

Open repositories in a VSCode environment in your browser

No screenshot yet
Rating
0 reviews
Pricing
Open source
Promote on VibeVoted
Alternatives Is it good?
Kanera
Plan across boards with Kanban, tables, calendars, Gantt timelines, and dependencies. Track priorities, progress, and changes with reporting, activity history, automations, notes, custom fields & AI agent attribution. Mobile-ready and self-hostable. sponsored

Which is more popular?

Based on our record, AddCal seems to be more popular. It has been mentioned 1 time since March 2021.

social mentions
1 vs 0
Productivity popularity
77% vs 23%
alternatives listed
82 vs 1

Base details

Website, pricing, platforms and company facts side by side.

AddCal
GitHub Surf
Website addcal.co github.surf
Pricing
Freemium $12 / Monthly (Premium Plan) Official pricing
Open source
Company Startup from Australia · 1 - 9 employees · 2025 —
Listed in
Calendar And Scheduling Web App Productivity Calendar +1
Developer Tools Productivity Note Note Taking +1

About AddCal and GitHub Surf

In their own words, as submitted to SaaSHub.

AddCal
GitHub Surf

AddCal is an event-sharing platform for getting events into attendees' calendars. Create a single add-to-calendar link or button that works with Google Calendar, Apple Calendar, Outlook, Office 365 and Yahoo. Key features Add-to-calendar links & buttons – one universal link per event,...

Read more about AddCal

No description of GitHub Surf yet.

Features and specs

What each product offers, as listed by its team.

AddCal 8 features
GitHub Surf 4 features
  • Add-to-Calendar Links
    One universal link or button per event that works with Google, Apple, Outlook, Office 365 and Yahoo calendars
  • Subscription Calendars
    Live calendar feeds that automatically update subscribers when events change or are cancelled
  • RSVP Management
    Going/maybe/not going responses, custom questions, capacity limits with waitlists and CSV export
  • Smart Links
    Generate calendar events dynamically from URL parameters, webhooks or Zapier
  • Event Analytics
    Track clicks and calendar adds per link, broken down by calendar provider
  • Integrations
    Zapier, Zoom and an MCP server for AI assistants
  • Public Event Pages & Embeds
    Shareable public calendar pages and embeddable widgets for websites
  • Custom Domains & Branding
    Serve links from your own domain and remove AddCal branding
  • User-Friendly Interface
    GitHub Surf provides an intuitive and easy-to-navigate interface that makes it accessible for both beginners and experienced users.
  • Integration with GitHub
    The tool seamlessly integrates with GitHub, allowing users to easily access repositories and track changes efficiently.
  • Real-Time Collaboration
    It supports real-time collaboration features, enabling multiple users to work on the same project simultaneously and see each other's edits instantly.
  • Visual Representation
    Provides a visual representation of project histories and branches, which helps in understanding the development process better.

Possible disadvantages

  • Limited Offline Capabilities
    GitHub Surf requires an internet connection for most functionalities, which limits its usability in offline scenarios.
  • Learning Curve
    Users new to GitHub or similar platforms might experience a learning curve when first using GitHub Surf, owing to its various features and tools.
  • Performance Issues
    Some users may experience performance lags or slower response times when working with large repositories.
  • Privacy Concerns
    As with any online tool, there might be concerns related to data privacy and security, especially when dealing with sensitive project information.

Analysis

An editorial look at what each product does well and who it suits.

AddCal
GitHub Surf

No analysis of AddCal yet.

Overall verdict

  • GitHub Surf appears to be a niche tool designed to enhance the experience of browsing and exploring GitHub repositories, offering a more visual or streamlined interface than GitHub's native UI. It seems useful for developers who want a faster or more intuitive way to navigate codebases, though as a smaller or newer service, it may lack the robustness, feature completeness, or long-term support of GitHub's official tools.

Why this product is good

  • Provides an alternative, potentially more visual or user-friendly way to browse GitHub repositories
  • May offer quicker navigation or discovery features compared to GitHub's default interface
  • Useful for developers who want to explore codebases without cloning them locally
  • Likely lightweight and focused on a specific browsing use case

Recommended for

  • Developers who frequently browse open-source repositories and want a different visual experience
  • Users looking for quick repository exploration without needing full GitHub account features
  • Casual coders or students exploring codebases for learning purposes
  • Those seeking alternative UI/UX for GitHub navigation as a supplementary tool

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
AddCal
GitHub Surf
77% 77%
Productivity
23% 23%
0% 0%
Developer Tools
100% 100%
100% 100%
Calendar And Scheduling
0% 0%
0% 0%
Note Taking
100% 100%

Questions & Answers

As answered by people managing AddCal and GitHub Surf.

Which are the primary technologies used for building your product?

AddCal's answer

Laravel on Laravel Vapor (AWS Lambda), a Vue.js front end, Cloudflare, PostgreSQL on PlanetScale, and Stripe for billing.

What makes your product unique?

AddCal's answer

AddCal combines add-to-calendar links, live subscription calendars and RSVPs in one tool, so organisers don't need separate products for each. One link works across Google, Apple, Outlook, Office 365 and Yahoo. Subscription calendars push updates and cancellations to subscribers automatically. Smart Links let developers generate events on the fly from URL parameters, webhooks or Zapier. There's also an MCP server, so AI assistants can create and manage events directly.

Why should a person choose your product over its competitors?

AddCal's answer

The free plan includes unlimited calendar adds and subscription calendars, and paid plans are simple monthly or annual tiers with no per-event fees. Every link comes with analytics. Moving from AddEvent takes one click. AddCal is independently built and run, so support comes straight from the people who build the product.

How would you describe the primary audience of your product?

AddCal's answer

Anyone who needs people to actually save and attend their events: webinar and SaaS marketers, schools and school districts, universities, local councils, sports clubs, community and faith groups, and event organisers. It's also for developers who add calendar links to apps, emails and booking flows.

Who are some of the biggest customers of your product?

AddCal's answer

  • MIT
  • Accenture
  • Deloitte
  • ServiceNow
  • Workday
  • Snowflake
  • Merck

What's the story behind your product?

AddCal's answer

In 2020, a webinar invite that worked in Gmail broke in Outlook, and half the attendees couldn't add the event to their calendars. That frustration led to Calndr.link, a weekend hack that offered one add-to-calendar link that worked in every calendar app. Organisers wanted more, so Calndr.link grew into AddCal, which added RSVPs, subscription calendars, embeddable widgets, automation and analytics. Every Calndr.link URL still works. Today AddCal is used by more than 15,000 people and teams in over 120 countries, with more than 25 million calendar adds.

User comments

Share your experience with using AddCal and GitHub Surf. For example, how are they different and which one is better?

Log in or Post with

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

AddCal 1 mention
GitHub Surf 0 mentions
  • Search crawlers were adding our customers' events to their calendars
    If you want add to calendar links where someone else deals with this, that's AddCal. You can make one in a few seconds with the free link generator, or put an add to calendar button on your site. - Source: dev.to / 6 days ago

Tracking GitHub Surf since Mar 2021.

Alternatives to AddCal and GitHub Surf

When comparing AddCal and GitHub Surf, you can also consider the following products.

Loading...