# alto.calendar — share when you are free/busy

> Shared busy/free calendar summary from all linked calendars. (iPhone/iPad app by Anton Podviaznikov.)

- Source: https://appshunter.io/ios/app/altocalendar/id6670268848 (this page in markdown: same URL + `.md`)
- Developer: [Anton Podviaznikov](https://appshunter.io/developer/1527892709)
- Category: Utilities, Social Networking
- Price: Free
- Rating: 5.00/5 from 2 App Store ratings
- Age rating: 4+
- Requires: iOS 17.2 · 1 MB
- Languages: English
- Released: 2024-08-29
- Data updated: 2026-07-31
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/altocalendar/id6670268848/reviews.md

## What is alto.calendar?

Create summary Busy/Free calendar from all your calendars.

This way you can share this new calendar with your significant other or friends and they will know when you are busy or free.

Works the other way too - ask them to create their calendars and you can see when they are free or all of you are.

## Key features

- Create summary Busy/Free calendar
- Share availability with others
- View others' availability
- Integrates all your calendars
- Coordinate plans easily


## Frequently asked questions about alto.calendar

### What is alto.calendar?

alto.calendar creates a summary calendar showing your busy and free times, compiled from all your existing calendars. This allows you to easily share your availability with others or see theirs.

### How does alto.calendar help me coordinate plans?

By sharing a consolidated busy/free calendar, you and your contacts can quickly see when everyone is available, simplifying the process of finding a time to meet or connect.

### What devices does alto.calendar support?

Currently, alto.calendar is available for iPhone devices.

### Is alto.calendar free to use?

Yes, alto.calendar is completely free to download and use, with no in-app purchases or advertisements.

### How often is alto.calendar updated?

The app was last updated on December 2, 2024, with version 1.13. This indicates active development and regular improvements.

### What is the age rating for alto.calendar?

alto.calendar has an age rating of 4+, making it suitable for a wide range of users.

### What do users like about alto.calendar?

Based on its rating of 5.0 stars from 2 reviews, users likely appreciate its straightforward functionality for sharing availability and its ease of use.

### Does alto.calendar have ads?

No, alto.calendar is ad-free, providing an uninterrupted user experience.

## Version history (last 5 releases)

### 1.13 — 2024-12-02

Add link to alto.start.

### 1.12 — 2024-11-09

Add link to https://public.me

### 1.11 — 2024-11-01

Update Help tab

### 1.10 — 2024-10-31

Add new Help tab.

### 1.9 — 2024-10-13

Background refresh every 10 minutes.

## Apps similar to alto.calendar

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Quit with Friends](https://appshunter.io/ios/app/quit-with-friends/id6742913311) | 5.0 (1) | Free | Utilities |
| [Get and share Calendar Events](https://appshunter.io/ios/app/get-and-share-calendar-events/id6466659968) | — | Free | Utilities |
| [Accordion Sharing](https://appshunter.io/ios/app/accordion-sharing/id6740701444) | 5.0 (1) | Free | Utilities |
| [Listorama](https://appshunter.io/ios/app/listorama/id6499499121) | — | Free | Utilities |
| [EMS Compcal App](https://appshunter.io/ios/app/ems-compcal-app/id1574539517) | 5.0 (2) | Free | Utilities |
| [CanYouMeetUs: Event Creation](https://appshunter.io/ios/app/canyoumeetus-event-creation/id6499230412) | 5.0 (4) | Free | Utilities |

## More apps by Anton Podviaznikov

- [alto.daily](https://appshunter.io/ios/app/altodaily/id6478018751)
- [alto.location](https://appshunter.io/ios/app/altolocation/id6683306000)
- [alto.run](https://appshunter.io/ios/app/altorun/id6698888078)
- [bluedotair](https://appshunter.io/ios/app/bluedotair/id6741000572)
- [alto.caps](https://appshunter.io/ios/app/altocaps/id6746421138)

All apps by Anton Podviaznikov: https://appshunter.io/developer/1527892709

## Related topics

[when available](https://appshunter.io/ios/topics/when-available)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-31.*