# Alto Calendar

> Share when you are free, without showing what you are doing

Alto Calendar builds one Busy/Free calendar out of the calendars you already keep, and you share it. They see when you are free, never what you are doing.

iPhone, iOS 18. Every page has a plain markdown twin at its own url with a .md suffix.

## Pages

- [Home](https://altocalendar.com/): Alto Calendar builds one Busy/Free calendar from the calendars you keep. Share it, and they see when you are free, never what you are doing.
- [Help](https://altocalendar.com/help): How Alto Calendar works: the Busy/Free calendar, sharing and inviting, Today, widgets, Siri and Pro.
- [How it works](https://altocalendar.com/how-it-works): Alto Calendar builds one Busy/Free calendar from the calendars you pick. It carries only when you are busy: no titles, places, guests or notes.
- [Sharing](https://altocalendar.com/sharing): Share your Busy/Free calendar in three taps in Apple's Calendar app, invite someone from Contacts, and see them once they share back.
- [Today](https://altocalendar.com/today): Who is free right now, you included, and until when. Today and tomorrow as a summary or a timeline, with everyone's blocks merged.
- [Widgets](https://altocalendar.com/widgets): Free time on your Home Screen: Someone, Everyone and Together widgets, and a Lock Screen countdown until someone is free.
- [Siri](https://altocalendar.com/siri): Ask Siri when someone is free and get an answer, with the next time you are both free. From Siri, Spotlight and Control Center.
- [Pricing](https://altocalendar.com/pricing): Pro shows everyone who shares with you and counts down on the Lock Screen. One purchase, on every device with your Apple Account.
- [Questions](https://altocalendar.com/faq): Is Alto Calendar free, what can people see, does it need iCloud, and can someone without an iPhone see my free time. The questions people ask.
- [Share your free time](https://altocalendar.com/how-to-share-when-you-are-free-on-iphone): Share your free time from iPhone without showing your events. What Apple's Calendar does on its own, and how Alto Calendar shares only the blocks.
- [Privacy](https://altocalendar.com/privacy): Alto Calendar works on your iPhone. No account, no server: only the times of your events go into the calendar you share.
- [Terms](https://altocalendar.com/terms): The terms for the Alto Calendar iPhone app, sold through the App Store under Apple's standard license, and for altocalendar.com.
- [Contact](https://altocalendar.com/contact): How to reach the person who makes Alto Calendar.
- [About](https://altocalendar.com/about): Who makes Alto Calendar, and the other apps.