The developers of rePORTAL have just released an upgrade (v6.4) of their web portal and scheduling software. They are offering a 10% discount on all server licenses between now and the end of January 2020. Contact them through their website if you are interested in trying or buying their software. You can read more about the features of rePORTAL in my these annual comparisons:
http://kenhamady.com/cru/comparisons/server-based-deployment-options
http://kenhamady.com/cru/comparisons/server-based-scheduling-engines