For complete licensing information, visit: http://fullcalendar.io/scheduler/license FullCalendar Scheduler is tri-licensed, meaning you must choose one of three licenses to use. Here is a summary of those licenses: - Commercial License (a paid license, meant for commercial use) http://fullcalendar.io/scheduler/license-details - Creative Commons Non-Commercial No-Derivatives (meant for trial and non-commercial use) https://creativecommons.org/licenses/by-nc-nd/4.0/ - GPLv3 License (meant for open-source projects) http://www.gnu.org/licenses/gpl-3.0.en.html