# Sharing and inviting

Share your Busy/Free calendar in three taps in Apple's Calendar app, invite someone from Contacts, and see them once they share back.

Alto Calendar uses Apple's own calendar sharing. Nothing goes through a server of ours: the person you share with sees your Busy/Free calendar in their own Calendar app, and in Alto Calendar if they have it.

## Three taps in the Calendar app

1. **Find your calendar** in the Calendar app's list of calendars.
2. **Add the people you want**: tap Add Person under Shared With and enter their email.
3. **Then turn off Allow Editing**, so they see your time but can never change it.

## Invite from Contacts

Pick someone from Contacts and Alto Calendar copies their email and opens Calendar, with a message to send them. The message carries your email, the one thing they need to share back.

## Sharing back

Sharing goes one way. They will see when you are free, and you will see them once they share their own calendar back. Alto Calendar tells you when they do.

If someone already shares with you, Alto Calendar finds them and offers to share back: you can see when they are busy, and they see when you are free once you share yours.

## Who you share with

Sharing with one person is free. [Pro](/pricing) shows everyone who shares with you: a partner, family and friends, not only one person.

Source: https://altocalendar.com/sharing