Disclosure

Affiliate links

We may earn a commission if you buy through these links: Cal.com.

Affiliate status never influences scores, order or "best for" picks. Scores are computed in code from published data and test results, using the same rubric for every tool. Every affiliate programme we belong to is listed on this page. Every affiliate link is labelled "affiliate" and marked as sponsored. Every tool gets one equally prominent link, whether or not it is an affiliate link.

Who runs this site

Calendar Booking Lab and Add to Calendar Lab are run together. The two sites review different kinds of tools, so no tool appears on both, and neither site's scores take the other into account. Links between the two sites are ordinary links, not paid placements.

Analytics

We use PostHog to count page views and clicks and see which pages help readers. It sets a first-party cookie so a return visit counts as the same visitor. We don't use it to identify you by name, and we don't share it with the tools we review or use it for advertising.

Check our scores yourself

You can download the raw data (JSON) behind every review: plans, limits, features, sources, problems found, and each tool's points in every category. With the rubric on the methodology page, you can recompute any score and check that it matches what we publish.

Or let the code do it: this short JavaScript example downloads the data and the scoring code that builds this site, recalculates every score and compares it with the published one. Run it with node recalculate-scores.mjs (Node 22 or later) or paste it into your browser's console.

Free accounts and trials

We sign up like any user. We don't accept free paid plans from vendors in exchange for coverage.

Vendor contact

Vendors can submit corrections through the same public form as anyone else. Like every correction, it needs a source, and the outcome is logged on the changelog.