Instead of Calendar.com
Calendar.com alternatives
Calendar.com is more than a place to view dates: it brings calendars, scheduling, contacts, analytics, and automation into one service. It supports shared calendars, time blocking, booking links, two-way sync, and one-on-one, group, round-robin, multi-host, and one-off meetings. Connections include Google, Outlook, iCloud, Exchange, CalDAV, and native calendars, with more than 40 integrations and access through web, iOS, Android, API, and browser extensions. Individuals can use it free; paid plans start at $20/mo, with a 14-day trial and a 20% annual-billing discount. Team limits and some controls vary by plan.
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Mozilla Thunderbird
by Mozilla ThunderbirdFree plan Open source AndroidLinuxMac+1Free, open-source desktop calendar users — Thunderbird is free and open source, with offline access and scheduled sending, while Calendar.com adds booking links, two-way sync, and analytics.
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Microsoft Outlook Calendar
by Microsoft Outlook CalendarFree plan AndroidiPhoneMac+1People using Outlook email and calendars — Outlook Free includes email and calendar across web, desktop, and mobile, while Calendar.com adds time blocking, scheduling links, and two-way sync.
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Tuta Calendar
by Tuta CalendarFree plan AndroidiPhoneLinux+3People wanting a calendar with broad device support — Tuta Calendar supports Linux and Windows alongside mobile and web, while Calendar.com offers two-way sync and more than 40 integrations.
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EGroupware
by EGroupwareFree plan Open source AndroidAPIiPhone+5Organizations wanting open-source shared calendars — EGroupware is open source and supports two-way sync and video meetings, but has no mobile apps; Calendar.com offers iOS and Android apps.
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Zoho Calendar
by Zoho CalendarFree plan AndroidiPhoneWebPeople seeking a free calendar with scheduling tools — Zoho Calendar offers shared calendars, time blocking, scheduling links, and two-way sync on a free plan, while Calendar.com’s paid plans start at $20/mo.
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Proton Calendar
by Proton CalendarFree plan AndroidiPhoneMobile users seeking a free calendar — Proton Calendar offers shared calendars and scheduling links on Android and iOS, while Calendar.com also supports web, API, and browser extensions.
Free plan Visit site - 8
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Structured
Free plan AndroidiPhoneMac+1 - 12
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Fantastical
Free plan iPhoneMacWindows - 17
FlowSavvy
Free plan AndroidiPhoneWeb - 18
Amie
Free plan APIExtensioniPhone+3 - 19
Vimcal
Free plan iPhoneMacWeb+1 - 20
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Informant
Free plan AndroidExtensioniPhone+2
An alternative may suit you better if you want a free open-source desktop app, a calendar bundled with email or workplace collaboration, or a different platform mix. Before switching, weigh device support, calendar sharing and sync, booking needs, and whether the price fits. Calendar.com offers two-way sync and a range of booking formats, plus payment processing and team analytics. The options below differ in cost, available platforms, and whether calendar tools come with email or broader collaboration features.