Updated 2026-10-07
Methodology
Each tool is tested by creating the same event, with a time zone, location and description, and adding it to Google Calendar, Apple Calendar, Outlook.com, Office 365 and Yahoo. Each criterion is scored from 0 to 10. The overall score is the weighted average.
| Criterion | Weight | What we check |
|---|---|---|
| Calendar coverage | 20% | Google, Apple/iCal (ICS), Outlook.com, Office 365, Yahoo and others, including subscribe-to-calendar feeds. |
| Features | 20% | Shareable event links, landing pages, buttons, recurring events, time zones, bulk/CSV and email support. |
| Ease of use | 15% | Time to create a first working link, clarity of the editor and quality of the output. |
| API & integrations | 15% | REST API, no-code integrations, embeds and developer documentation. |
| Analytics | 10% | Click and add tracking per calendar type, per event and per link. |
| Privacy & GDPR | 10% | Data processing terms, EU friendliness, tracking behaviour on end users. |
| Pricing & value | 10% | Free tier availability and value of paid plans. |
How we researched
Every conclusion on this site comes from our own independent research. We tested each tool hands-on and cross-checked the results against multiple sources: official vendor documentation, published pricing pages, changelogs, source code for the open-source options and public user reviews. No tool pays for a ranking position.
- Hands-on testing: the same event created and added in every tool
- Official vendor documentation and help centres
- Published pricing pages and plan limits
- Changelogs and release notes
- Source code and issue trackers for the open-source options
- Public user reviews and community discussions
Scores are reviewed whenever a tool ships a significant update. Vendors can request a re-test, but cannot pay for a higher score.