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Harmonizely
A flexible, universal meeting scheduler that supports all calendar types, including CalDAV.
What it does
Unifies multiple calendars (Google, Outlook, CalDAV) into a single availability view. Provides highly customizable scheduling pages with removable branding and custom domains. Automates meeting creation, link generation (Zoom/Google Meet), and reminders. Features multilingual support for over 15 languages on the booking page. Includes 'Secret Meeting' types and round-robin scheduling for multi-person teams.
Why it works
Universal Sync: The only tool in its class that doesn't assume you use Google or Microsoft. Customization: Offers deeper white-label options than competitors at a lower price point. Simplicity: Features a clean, 'no-learning-curve' interface for both the user and the invitee. Fidelity: Ensures perfect timezone synchronization to eliminate meeting no-shows.
Category: Productivity
Team Size: 2-10
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As of 2026
Productivity
Revenue: $100k-$1M ARR
A flexible, universal meeting scheduler that supports all calendar types, including CalDAV.
Overview
Harmonizely is a specialized scheduling platform designed for users who need a more flexible alternative to Calendly. It distinguishes itself by being one of the few tools to support the open CalDAV standard, enabling seamless integration with non-mainstream calendars like Zimbra, Fastmail, and Zoho, alongside Google and Outlook. By focusing on customization and white-labeling, Harmonizely helps freelancers and small teams maintain a professional, on-brand booking experience.
Funding status: Bootstrapped
Revenue source: Subscriptions
Customer type: B2B2C
Pricing: Freemium
Tech stack: React, Node.js, AWS, CalDAV
Platform: Web
Integrations: Google Calendar, Outlook, Zimbra, Zoho, Zoom, Zapier, WordPress
Founder story
Founded in 2018 by Rafal Kukla in Siedlce, Poland. Rafal, a software engineer, built the tool after realizing that most schedulers ignored his preferred calendar system. He turned a side project into a global SaaS, scaling it to serve thousands of professionals who value flexibility and privacy.
What it does
- Unifies multiple calendars (Google, Outlook, CalDAV) into a single availability view
- Provides highly customizable scheduling pages with removable branding and custom domains
- Automates meeting creation, link generation (Zoom/Google Meet), and reminders
- Features multilingual support for over 15 languages on the booking page
- Includes 'Secret Meeting' types and round-robin scheduling for multi-person teams.
Who it's for
- Freelancers & Consultants
- Tech-forward Recruiters
- SDRs & Sales Teams
- Users of non-mainstream calendars (Zimbra/Zoho)
Why it works
- Universal Sync: The only tool in its class that doesn't assume you use Google or Microsoft
- Customization: Offers deeper white-label options than competitors at a lower price point
- Simplicity: Features a clean, 'no-learning-curve' interface for both the user and the invitee
- Fidelity: Ensures perfect timezone synchronization to eliminate meeting no-shows.
Growth strategies
- Targeted the 'Disillusioned Calendly User' who felt priced out of custom branding.
- Used a highly successful AppSumo launch to build an early base of thousands of power users.
- Leveraged a unique 'CalDAV- first' narrative to capture the niche technical market.
- Maintained a lean, customer- first roadmap focusing on localization and domain flexibility.
Alternatives
Comparison overview
- Calendly: More mainstream; Harmonizely is the superior specialist for non-Google calendars and white-labeling.
- Cal.com: Open-source; Harmonizely is the more established, easy-to-use SaaS specialist for CalDAV users.
- Harmonizely is the #1 choice for professionals who want a beautiful, universal scheduling page.