How calendar publishing
actually works.

How feeds work. What edits cost. Why subscribers stay subscribed.

Foundations

How calendar feeds work under the hood. Start here.

4 min read

What Is an ICS File? The Calendar Format, Explained

An ICS file is the plain-text format every calendar app understands. What's inside one, how to open it, and the difference between importing a file and subscribing to a link.

4 min read

How calendar subscriptions work

Why pasting a calendar link into Apple or Google is different from saving a calendar file once.

3 min read

How often Apple and Google refresh subscribed calendars

Apple refreshes subscribed calendars about hourly, Google every 12 to 24 hours, Outlook 1 to 4 hours. Plus how to get a time-sensitive change through faster.

6 min read

RRULE explained: recurring calendar events in plain English

Recurring rules look intimidating. Here is the entire grammar in 800 words.

For parents

Kid sports, school events, custody schedules.

5 min read

Shared Family Calendar App for Parents

A shared family calendar app built for parents who publish kid sports, school, and custody schedules. One link, live updates, no app installs for subscribers.

8 min read

Best Shared Calendar App for Every Use

Not every shared calendar app works the same way. Which apps suit families who all edit, and which suit publishers broadcasting a schedule to subscribers.

For instructors & coaches

Class series, training programs, recurring sessions.

5 min read

Class Schedule App for Instructors

Post a class schedule once as a live link. Students subscribe in Apple, Google, or Outlook. Edits show up on their calendars automatically, no texts needed.

5 min read

How to charge for a calendar subscription

Most creators give the schedule away because they assume it has no price. Here is when a calendar is worth paying for.

For organizers & publishers

Getting a calendar onto 30 phones cleanly, season after season.

4 min read

How to share a calendar with a group

Group calendar pattern for organizers: publish one link, 30 people subscribe, edit once, everyone sees it. PTA, clubs, congregations, volunteer rotations.

4 min read

How to share a camp schedule with parents

Camp directors: publish one calendar link parents subscribe to. Edit once when an activity moves and every subscribed phone picks up the change. No app, no account, no new PDF.

4 min read

When to edit a calendar vs publish a new one

The rule of thumb is simple. Same audience equals same calendar. Different audience equals new calendar.

5 min read

Embed a Calendar on a Website

Embed a subscribable calendar on any website. One iframe, auto-resizes, updates when you edit. Works in WordPress, Squarespace, Webflow, and Notion.

Or just try it.

Type a schedule. Calfeed builds the calendar.

Try for freeSee pricing