Booked Scheduler is described as 'Booked (formerly phpScheduleIt) is a simple but powerful reserve-anything scheduler. With flexible layouts, custom rules, a powerful administrative backend, and an unbelievably simple user experience, Booked can fit almost any need' and is an app in the Office & Productivity category. There are seven alternatives to Booked Scheduler for a variety of platforms, including Windows, Linux, Mac, Self-Hosted solutions and Online / Web-based. The best alternative is Rapla, which is both free and Open Source. Other great apps like Booked Scheduler are Celcat Timetabler (Paid), Hub Planner (Paid), Kairos Calendar (Free, Open Source) and ADE (Paid).
A timetabling, resource planning and management solution aimed at schools, universities, corporations and military training centers. Written in Java JEE. Has a web interface, a desktop Java client, and an API.