Question 1

Cal.com vs Calendly: How hard is it to migrate?

Accepted Answer

The transition is straightforward. Cal.com allows you to import your existing event types and availability settings. Most users can move their entire setup in less than an hour. Once your Opsily instance is live, you simply update the links on your website. Your clients will see a faster, more professional scheduling page immediately.

Question 2

Does Cal.com support all my calendar providers?

Accepted Answer

Yes. Cal.com supports Google Calendar, Outlook, Office 365, and Apple Calendar. It handles multiple calendar connections per user to prevent double bookings. It also integrates with Zoom, Google Meet, and Microsoft Teams for video conferencing. You get all the features of Calendly without the per-seat restrictions.

Question 3

How does Opsily handle Cal.com updates?

Accepted Answer

We manage the entire update lifecycle for you. Our systems monitor the official Cal.com repository for new stable releases. We test the updates to ensure compatibility before rolling them out to your instance. This ensures you always have the latest features and security fixes without having to manage code or servers yourself.

Question 4

Is there a limit on the number of users I can have?

Accepted Answer

Opsily does not charge per user. You are only limited by the resources of the server plan you choose. Our Small plan can typically handle dozens of active users. If your team grows to hundreds or thousands, you can scale your server plan with one click. Your cost per user actually goes down as you grow larger.

Question 5

Is my data really more secure with a hosted instance?

Accepted Answer

Yes. When you use a SaaS provider, your data is stored in a multi-tenant database alongside millions of other users. On Opsily, your Cal.com instance runs in its own isolated environment. Your database is completely separate from other customers. This drastically reduces the attack surface and ensures your scheduling data remains private.

Question 6

Can I use my own custom domain for booking links?

Accepted Answer

Absolutely. This is one of the main reasons teams choose Cal.com. You can set up a custom domain like book.yourcompany.com. This keeps your brand front and center throughout the entire customer journey. We provide the SSL certificate and handle the configuration so your custom domain works perfectly from day one.

Question 7

What happens if I need to cancel my Opsily hosting?

Accepted Answer

You are never locked in. Since Cal.com is open source, you can export your data at any time. If you decide to move to your own servers or another provider, your data goes with you. This is the ultimate defense against vendor lock-in. You own your infrastructure, we just make it easier to manage.

Cal.com vs Calendly: Own your scheduling.

Why Opsily?

Performance at scale

Automated updates

True data sovereignty

How It Works

Choose Your App

Pick your plan

One-click deployment

Go live

Trust & Compliance

Data Privacy

SSL Encrypted

Daily Backups

GDPR Ready

Simple, Transparent Pricing

Frequently Asked Questions