aCalendar, Fantastical, Tuta, Notion Calendar, BusyCal, Rainlendar, DigiCal, Cozi, Cron Calendar, TimeTune, Microsoft Mail and Calendar, Scriby, Calendar Lock PEA, Woelkli, MIDAS, Greg, Fossify Calendar, Lightning Calendar, Business Calendar, Calendar Buddy, Proton Calendar, timegrid.io, Amie, wtplan, Teamup Calendar, Cupla, Tockify, HEY Calendar, One Calendar, Me Calendar, CalenGoo, Sunrise Calendar, Desktop Calendar, WebCalendar, Timepage, When I Work, do-Organizer, OneView Calendar, Simple Calendar, Futurenda, jquery-calendar, Jorte, GNOME Contacts, WAVE Calendar, Nextcloud Calendar, Touch Calendar, GCalToolKit, todoyu, UKs Kalender, Holiline Reminder, RemindMe desktop calendar, GNOME Calendar, Active Desktop Calendar, Zoho Calendar, BORG Calendar, Persian Calendar, 30 Boxes, Homechart, Attendexer, SSuite My Calendar Diary, Ominder, Koma-Mail, DayViewer, Setmore Appointments, Woven Calendar, Planning Pal, Clean Google Calendar, fruux, CalendarWiz, qOrganizer, GMX Calendar, Calbird, DHTMLX Scheduler .NET, Day by Day Organizer, FCorp My Calendar, ChronoFlo Calendar, MemoCalendar.net, OnSched, Trumba, Caliander, Plain Today Calendar, OrgBusiness Software, Localendar, Maian Events, Q-IT Team Scheduler, Kalendar, Kin Calendar, GeneralSync, vircorX, styleNbook, HipCal, 1calendar, Calvetica, Spicebird, KeepTime, AnCal, Fabmin, The Calendar Pro, Easy Event, Calendarific, Calendarscope, Bookis, Convenient Calendar, Merge Calendar, PreMinder, 3veta, OrgCalendar, Coolendar, WizCal, Draftboard, Handy Calendar, Google Calendar Tags, Polar Liquoo, Visual Calendar for Tablets, SortedTime LLC are some alternatives to Google Calendar.