Why Square Appointments Might Just be the Best Way to Streamline Customer Bookings Square Appointments makes billing and booking clients simple with its all-in-one app. Stay informed and join our daily newsletter now! Email January 26, 2021 3 min read Disclosure: Our goal is to feature products and services that we think you'll find interesting and useful. If you purchase them, Entrepreneur may get a small share of the revenue from the sale from our commerce partners. In today’s busy world, keeping up with customer appointments can be a real challenge. On top of all your work, you’re using lots of different types of technology to run your business. So why not combine your POS and your customer booking system into one easy app?