
1. Acuity Scheduling
Best for flexible paid appointments
What it does better than Square Appointments
Acuity is payment-agnostic — it works with Stripe, Square, or PayPal — and offers deeper intake forms, packages, memberships, and class scheduling than Square Appointments. That flexibility suits coaches, clinics, and studios that do not fit a retail POS model.
Where Square Appointments still wins
It has no free plan and no integrated in-person POS or payment hardware, which Square Appointments provides natively.
Best for: Service businesses that want appointment depth and freedom to choose a payment processor.




