The limit that is almost always there

When a WordPress calendar plugin is free, the part held back is nearly always recurring events. It makes commercial sense — repetition is the feature that turns a calendar from a list into a schedule, and every venue, gym and course provider needs it. So it goes in the paid tier, and the free tier becomes a demonstration rather than a product.

Other limits to watch for: a cap on how many events you can create, a month view reserved for the paid version, an “upgrade” notice on every admin screen, or a free tier that works for thirty days. None of these are dishonest, but they are worth knowing about before you build a page around the plugin.

What a finished free plugin looks like

It has no counter and no countdown. Its recurring events are complete rather than partial — not just “every week”, but “the second Tuesday”, “the last Friday”, “twelve times”, “until June”, and the ability to cancel or move one occurrence without disturbing the rest. It renders a month view and a list. It lets your visitors subscribe to the calendar in their own app. And its settings screen does not nag you.

That is the standard the free plugin here is built to. A venue with a fortnightly quiz night, or a studio with three classes a week, can use it indefinitely and never see a prompt to pay. That is not generosity; it is the belief that a free tier which is not a real product does not earn any trust worth having.

What is not free here

One thing: pulling events in from a calendar you keep somewhere else. If your schedule lives in Google Calendar or Outlook and you want the website to follow it automatically, that is the paid part. The reason is that it is the part with ongoing cost — feed formats change, providers change their exports, and somebody has to keep up with it.

Everything you can do by typing events into WordPress, you can do for nothing, permanently.

Two things to check on any free plugin before you commit

First, its listing on WordPress.org: the last-updated date and the WordPress version it is tested against. A calendar that has not been touched in a year is a calendar whose timezone handling is already a year out of date.

Second, its support forum. Not the star rating — the ratio of threads opened to threads resolved. A free plugin whose author has stopped replying is free in the same way an abandoned building is free.