Acuity Scheduling
Acuity Scheduling launched in 2006 and was acquired by Squarespace in 2019, becoming Squarespace Scheduling (still branded Acuity in many contexts). The product philosophy is service-business-first: handle the entire booking workflow including payments, intake forms, package sales, group classes, and recurring appointments natively. Acuity built for the operator running a wellness practice, coaching business, salon, or service company, not for the SaaS sales rep.
In 2026 Acuity serves approximately 200,000+ paying customers concentrated in service business verticals (wellness, beauty, education, professional services, fitness). The strengths are native payment processing through Stripe and Square, sophisticated intake forms with conditional logic, class and group session management, package sales, and gift certificate handling. The weakness is integration depth with B2B sales stacks — Acuity's integration ecosystem is smaller and less polished than Calendly's.