Comparison

Tiny Calendar vs Availability Sync

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Tiny Calendar

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
Read full description

Tiny Calendar is an intuitive smart calendar works with all your calendars. It inherits the simple and clean look of calendars but makes it more accessible, powerful and reliable on your iPhone and iPad. With Tiny Calendar, you can access and manipulate your google calendar events and tasks more easily, anyway you want. SMART ENOUGH TO CREATE Tiny Calendar has features like nature language input, drag and drop, gestures and other smart methods to predict your intention and help you create and edit your events more easily. SYNC & MANAGE GOOGLE TASKS You don’t need to download another app to manage Google tasks. MULTIPLE WAYS TO VIEW Tiny Calendar supports 9 standard views - Forecast, day, week, month, 4-days, year, mini-month, week agenda and agenda. You can instantly switch views to discover events or find a time you're looking for. REAL-TIME SYNC Tiny Calendar syncs directly with all your Google calendars and also works with iOS local calendar to support events on iCloud, Exchange and other calendars. WORKS OFFLINE You can still create, edit and delete events when you don't have an Internet connection. Tiny Calendar will cache your changes and sync back to your calendar account next time you're online. ADVANCED REMINDER SYSTEM Never forget about a meeting! Tiny Calendar allows you to set reminders via push notification, or email for all events. ACCESS FROM EVERYWHERE Tiny Calendar works with your iPhone, iPad and Apple Watch. You don't need to pay extra money to download multiple copies. Subscription Information: - Tiny Calendar offers a subscription which is $1.49/week & $2.99/month. - Payment will be charged to iTunes Account at confirmation of purchase - Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period - Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase Terms of Use: https://apps.fengge.io/TinyCalendar/TermsConditions.html Privacy Policy: https://apps.fengge.io/TinyCalendar/PrivacyPolicy.html

About

Availability Sync

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
Read full description

Availability Sync: Share Your Availability Instantly Transform how you coordinate schedules and share your availability. Whether you're planning meetings, managing appointments, or coordinating with others, share your free time slots in seconds. FEATURES: Smart Sharing - Share available time slots instantly via text or calendar invites - Customize sharing messages for different recipients - Generate professional calendar invitations - Create personalized event titles and descriptions - Share across any messaging platform - Select multiple time slots in one go Calendar Integration - Sync with iOS, Google, and Outlook calendars - View all your calendars in one unified interface - Real-time updates as your schedule changes - Instant conflict detection Availability Management - Select and share multiple time slots at once - Customize work week and weekend schedules - Set preferred meeting durations - Define working hours for different days - Manage time zones effortlessly Time Slot Controls - Choose between 30-minute to 2-hour slots - Select entire days or specific times - Quick bulk selection options - Filter by morning, afternoon, or evening - View calendar conflicts instantly Professional Customization - Personalize event titles and descriptions - Create custom sharing messages - Choose between text or calendar format - Adjust time zone displays for recipients - Flexible date and time formats Perfect for: - Professionals sharing meeting availability - Teams coordinating across time zones - Freelancers managing client appointments - Anyone tired of back-and-forth scheduling emails Additional Features: - Support for light and dark modes - Multiple visual themes - Quick event creation - Privacy-focused design - Regular updates and improvements Download Availability Sync today and transform how you share your availability. No more endless email chains or scheduling confusion - just simple, efficient calendar sharing. Take control of your schedule sharing with Availability Sync.

Screenshots

Tiny Calendar4 screens
Availability Sync4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard8 real differences · 2 level
Tiny Calendar versus Availability Sync: the parameters behind the verdict, then further details
ParameterTiny CalendarAvailability Sync
PriceFreeFree
Rating4.6 (21K ratings) — better4.4 (5 ratings)
Positive reviews76.6% of reviews — better66.7% of reviews
Number of ratings21K — better5
Update frequencyEvery 2 monthsWeekly — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationSubscriptionFree — better
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad
Requires iOS14.0 — better17.5
Further details — not scored
Size45 MB10 MB
Age rating4+4+
DeveloperTinyWork AppsDavid Fuerst

Customer experience

Tiny Calendar

All ratings20,601 ratings
Positive91.9%
Neutral4.2%
Negative3.9%
Written reviews667 reviews
Positive76.6%
Neutral7.3%
Negative16.0%

Availability Sync

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Bugs and requests

Tiny Calendar

Reported bugs

3 issues
  • Events disappearing from calendar
  • Crashes when changing calendar settings
  • Duplicate events created unexpectedly

Requested features

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

Availability Sync

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Tiny Calendar

Subscriptions4
  • Weekly Subscription$1.497 Days
  • Monthly Subscription$2.991 Month
  • Yearly Special Offer$6.991 Year
Show 1 more
  • Yearly Subscription3 Days trial$9.991 Year
One-time6
  • Recurring Events$1.99
  • Invites & Attendees$1.99
  • Multiple Google Accounts$2.99
Show 3 more
  • Upgrade to Premium$9.99
  • Lifetime Premium Special Offer$14.99
  • Lifetime Premium$19.99
None

Availability Sync

No in-app purchases

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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