Atlas Calendar

Web

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Freedom report

One barScore 6.8

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedThinly documented

Atlas Calendar is ranked #61 of 197 in calendar apps on Freedom251, made by Atlas Calendar (Tempe, AZ). It runs on Web. There is a free plan.

Atlas Calendar plans and pricing

All plans

Free Free Two-way sync with Google, Outlook, and iCloud · Native CalDAV support · Shared team calendars · Recurring events and tasks · CRM-linked events hyperionworks.com · 22 Sept 2026

Compared on calendar apps

Free plan: Yes
Shared calendars: Yes
Calendar sync: two_way

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