# Availability Sync vs Zyara.io

The clearest difference is iOS requirement: Zyara.io at 15.1 against Availability Sync's 17.5. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Availability Sync ships an update weekly, Zyara.io fortnightly. The most recent releases landed on June 2, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Availability Sync | Zyara.io |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (5 ratings)](https://appshunter.io/ios/app/availability-sync/id6670766226/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Free | — |
| Size | 10 MB | 83 MB |
| Requires iOS | 17.5 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [David Fuerst](https://appshunter.io/developer/1754806202) | [Essa Khoury](https://appshunter.io/developer/1792853315) |

## What reviewers say

### Availability Sync

[App page](https://appshunter.io/ios/app/availability-sync/id6670766226)

Easily share your free time slots for meetings and appointments. This app integrates with your existing calendars and allows for customized sharing messages and professional calendar invites. Streamline your scheduling process and avoid back-and-forth communication.

**Highlights:** Instant availability sharing, Calendar integration (iOS, Google, Outlook), Customizable sharing messages, Professional calendar invitations, Multiple time slot selection, Time zone management

**Features:** macOS Compatibility

**In-app purchases:** none


### Zyara.io

[App page](https://appshunter.io/ios/app/zyaraio/id6744304167)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Availability Sync free?

Availability Sync is free to download, with no in-app purchases.

### Is Zyara.io free?

Zyara.io is free to download, with no in-app purchases.

### Do Availability Sync or Zyara.io have ads?

Neither Availability Sync nor Zyara.io shows ads.

### Which is updated more often, Availability Sync or Zyara.io?

Availability Sync ships an update weekly, and Zyara.io fortnightly. Most recently, Availability Sync was updated on June 2, 2026 and Zyara.io on September 9, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*