aCalendar, Notion Calendar, BusyCal, Rainlendar, DigiCal, Cozi, TimeTune, Calendar Lock PEA, MIDAS, Greg, Fossify Calendar, Business Calendar, Calendar Buddy, timegrid.io, Amie, Harmonizely, wtplan, Teamup Calendar, Tockify, HEY Calendar, One Calendar, Me Calendar, Desktop Calendar, WebCalendar, Homebase, When I Work, do-Organizer, OneView Calendar, Smoopit, Simple Calendar, OnceHub, Futurenda, Jorte, WAVE Calendar, Touch Calendar, GCalToolKit, todoyu, UKs Kalender, RemindMe desktop calendar, GNOME Calendar, Active Desktop Calendar, Zoho Calendar, BORG Calendar, 30 Boxes, Attendexer, Taskie, SSuite My Calendar Diary, Setmore Appointments, Clean Google Calendar, fruux, CalendarWiz, qOrganizer, GMX Calendar, Calbird, DHTMLX Scheduler .NET, Day by Day Organizer, ChronoFlo Calendar, MemoCalendar.net, OnSched, Trumba, Caliander, OrgBusiness Software, Localendar, Maian Events, Q-IT Team Scheduler, Kin Calendar, styleNbook, Calvetica, KeepTime, AnCal, Fabmin, Easy Event, Calendarific, Calendarscope, Bookis, Convenient Calendar, PreMinder, OrgCalendar, WizCal, Draftboard, Handy Calendar, Polar Liquoo, Visual Calendar for Tablets, SortedTime LLC are some alternatives to Morgen.