# Tiny Calendar vs Availability Sync

The clearest difference is in-app purchases: Availability Sync at none against Tiny Calendar's 10. Availability Sync also leads on ads (none vs shown) and update cadence (weekly vs every 2 months). Tiny Calendar's advantage is ratings volume (21K vs 5) and review sentiment (77% vs 67%). On price and rating there is nothing between them.

Both are free to download. Tiny Calendar sells 10 in-app purchases, starting at $1.49 per 7 days. Availability Sync asks for nothing beyond the download.

Tiny Calendar holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: Tiny Calendar has 21K ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 77% of Tiny Calendar's written reviews are positive against 67% of Availability Sync's.

Tiny Calendar ships an update every 2 months, Availability Sync weekly. The most recent releases landed on September 23, 2026 and June 2, 2026 respectively.

## The numbers

| Metric | Tiny Calendar | Availability Sync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (21K ratings)](https://appshunter.io/ios/app/tiny-calendar-planner-and-tasks/id514917848/reviews)** | [4.4 (5 ratings)](https://appshunter.io/ios/app/availability-sync/id6670766226/reviews) |
| Number of ratings | **21K** | 5 |
| Positive reviews | **76.6% of reviews** | 66.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Subscription | **Free** |
| Size | 45 MB | 10 MB |
| Requires iOS | **14.0** | 17.5 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TinyWork Apps](https://appshunter.io/developer/1289515980) | [David Fuerst](https://appshunter.io/developer/1754806202) |

## What reviewers say

### Tiny Calendar

[App page](https://appshunter.io/ios/app/tiny-calendar-planner-and-tasks/id514917848)

This intuitive calendar app syncs with your existing calendars, offering powerful event creation and management tools. Access your schedule offline, set advanced reminders, and view your events in multiple formats on your iPhone, iPad, and Apple Watch.

**Highlights:** Natural language input for event creation, Drag and drop event editing, Syncs with Google Calendar and iOS local calendars, Supports 9 different calendar views, Offline event management, Advanced reminder system (push notifications, email), Apple Watch support

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $1.49 | per 7 days |
| Monthly Subscription | $2.99 | per month |
| Yearly Special Offer | $6.99 | per year |
| Yearly Subscription | $9.99 | per year |
| Recurring Events | $1.99 | one-time |
| Invites & Attendees | $1.99 | one-time |
| Multiple Google Accounts | $2.99 | one-time |
| Upgrade to Premium | $9.99 | one-time |
| Lifetime Premium Special Offer | $14.99 | one-time |
| Lifetime Premium | $19.99 | one-time |

**What reviewers like**

- 💻 Excellent calendar app
- 📆 Helpful for organizing schedules
- 🔗 Syncs well with Google Calendar
- 🗓 Useful month/week/day views
- 🎨 Customizable color-coding

**What reviewers complain about**

- 🐛 Syncing issues with Google Calendar
- 🔍 Difficulty finding past events
- 💰 Expensive subscription model
- 📢 Intrusive ads in free version
- 🕰 Time zone issues with event times

**Reported bugs**

- Events disappearing from calendar
- Crashes when changing calendar settings
- Duplicate events created unexpectedly

**Requested features**

- Add to-do list functionality
- Improve Apple Watch integration
- Allow more customization options
- Provide better customer support


### 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


## Frequently asked questions

### Is Tiny Calendar free?

Tiny Calendar is free to download, with in-app purchases available.

### Is Availability Sync free?

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

### Which has better reviews, Tiny Calendar or Availability Sync?

Tiny Calendar is rated higher. Tiny Calendar averages 4.6 out of 5 from 21K ratings, while Availability Sync averages 4.4 from 5 ratings.

### Do Tiny Calendar or Availability Sync have ads?

Tiny Calendar shows ads; Availability Sync does not.

### Which is updated more often, Tiny Calendar or Availability Sync?

Tiny Calendar ships an update every 2 months, and Availability Sync weekly. Most recently, Tiny Calendar was updated on September 23, 2026 and Availability Sync on June 2, 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.*