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Last updated: 20 July 2026
Slotcheck is a free Chrome extension that shows your Google Calendar beside meeting booking pages. These terms explain what you can expect from it and what it expects from you. They are meant to be read.
Slotcheck is published by Gravity Zero Labs ("we", "us"). By installing or using the extension, you agree to these terms. If you do not agree, please do not install it, or uninstall it — that is all it takes to stop.
Slotcheck displays your own Google Calendar in Chrome's side panel while you view a meeting scheduling page (Calendly, Cal.com, HubSpot Meetings, or SavvyCal), so you can check your availability without switching tabs. It is a convenience layer over your existing calendar. It does not book meetings, change your calendar, or act on your behalf.
To show your calendar, Slotcheck asks you to connect a Google account and grant read-only calendar access. You are responsible for connecting only accounts you are entitled to use. Slotcheck cannot create, edit, move, or delete anything in your calendar — the access is read-only by design.
How your data is handled is described in full in the Privacy Policy, which forms part of these terms. In short: your calendar data stays on your device and is never transmitted to us.
You agree not to:
Slotcheck works alongside Google Calendar and the scheduling tools listed above, but it is an independent product. It is not affiliated with, endorsed by, or sponsored by Google, Calendly, Cal.com, HubSpot, or SavvyCal. Those names and marks belong to their respective owners. Your use of each of those services remains governed by that service's own terms.
Slotcheck reads the structure of scheduling pages, which their operators may change at any time without notice. Features can therefore break or stop working, and we may update, change, or discontinue any part of the extension. We do not guarantee that Slotcheck will be available, uninterrupted, or error-free.
To the fullest extent permitted by law, Gravity Zero Labs is not liable for any indirect, incidental, or consequential damages, or for any missed meeting, scheduling conflict, or lost opportunity, arising from your use of or inability to use Slotcheck. Because Slotcheck is provided free of charge, our total liability to you is limited to zero.
You may stop using Slotcheck at any time by uninstalling it, which removes all of its local data from your browser. We may suspend or discontinue the extension, in whole or in part, at any time.
If these terms change materially, the updated version will be published at this URL with a revised date above. Continuing to use Slotcheck after a change means you accept the updated terms.
Questions about these terms can go to contact@slotcheck.app.