Assembly Line

Calendly

Calendly connects and simplifies all of the work around meetings, from scheduling, payments, and meeting prep to notetaking, contact management, and follow-up.

Calendly is commercial booking and scheduling software made by Calendly. It was first released in 2013, and it is based in Remote. Its English Wikipedia article has about 1k readers a month on phones.

Made by
Calendly
Since
2013
Wikipedia readers on phones
1k a month
Source code
Closed

Website Wikipedia

Judgement

What it is
Complete system
What it does
Meeting scheduling links that check your calendar availability, with round-robin team scheduling, payments, reminders and CRM integration.
Adopt it when
Sales, recruiting or consulting staff spend time on back-and-forth emails to book meetings.
Watch out
Team features and integrations need paid seats.
Ready for
Production-ready
Runs as
Cloud service, mobile app and browser extension
What the license allows
Closed source: you use it under the maker's terms and cannot change or resell the code.

Judged on 2026-11-03 from the maker's description and Wikipedia. The license and age lines are worked out directly.

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Under it

Every program, Calendly included, runs on a microchip.

How compilers were built, back to punched paper tape

The description is the maker's own, quoted as written. Facts come from Wikipedia and refresh weekly. Readers are counted on Wikipedia's mobile site only, because automated traffic that Wikimedia does not flag inflates desktop counts.