Side by side
Calendar 366 vs DAViCal
Both stand on calendar apps. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan iPhoneMac
Calendar 366 combines scheduling, tasks, meetings, integrations, and Apple automation in one app. Its free tier covers basic use, while premium access adds the broader feature set after a seven-day trial.
Visit Calendar 366 Free plan APIiPhoneLinux+4
DAViCal provides a free, self-hosted CalDAV server with sharing, delegation, scheduling, and broad client access. Its server requirements and administration responsibilities make deployment planning important.
Visit DAViCalThe facts
| Calendar 366 | DAViCal | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | iPhone, Mac | API, iPhone, Linux, Mac, Self-hosted, Web, Windows |
| Lowest paid plan | Calendar 366 Pro (Yearly): $19.99 a year | Free or on request |
| Plans published | 7 | 1 |
| Maker | Calendar 366 | Not published |
| Website | calendar366.com | davical.org |
| On calendar apps | #70 of 194 | #74 of 194 |
Calendar 366: what it does well
- Works across iPhone, iPad, Apple Watch, and Mac
- Supports two-way sync and shared calendars
- Includes natural-language event creation
- Connects to major calendar and meeting services
- Stores calendar and task data locally
What to know first
- Premium features require a subscription or purchase
- Some integrations and MCP features are platform-specific
- Family monthly plan costs $4.99 a month
DAViCal: what it does well
- Free Software under GPL
- Shared calendar editing
- Free/busy meeting scheduling
- LDAP authentication documented
- Access to calendars and address books
What to know first
- Self-hosted deployment required
- Windows use not recommended
- Read-write WebDAV not recommended
- Requires PHP and PostgreSQL
Alternatives to Calendar 366 Alternatives to DAViCal The whole list