Kontact
Open Source
Kontact is a personal information manager and groupware software suite developed by KDE. It supports calendars, contacts, notes, to-do lists, news, and email.
Holiline Reminder
Free
Holiline Reminder is a free software calendar program for Windows.
VueMinder Calendar
Freemium
VueMinder Calendar is a calendar app for Windows.
Osmo
Open Source
Osmo is a handy personal organizer, which includes calendar, tasks manager, address book and notes modules.
Compare Rainlendar with alternatives
Compare VueMinder Calendar and Rainlendar and decide which is most suitable for you.
Compare Holiline Reminder and Rainlendar and decide which is most suitable for you.