Eventail - A compact calendar widget for iOS 🗓️
Datelist.io - Datelist - Online booking system
Cal.com - Cal.com (formerly Calendso) is the open source Calendly alternative.
Leinko - Leinko helps non-technical independent professionals start their online virtual service business for coaching, training, teaching, or consulting.
Inspora - virtual chat-stylist for fashion advice.
Square Appointments - Add an online booking link. Easily embed the customizable widget directly on your website. Any changes to your online scheduling, prices, or services update automatically.