Comparison

Availability Sync vs Availability

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

Head to head
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.

About

Availability

Effortlessly schedule meetings and appointments directly within your messaging app. Share your availability with a few taps, and recipients can book a time without needing the app themselves. It syncs directly with your calendar, ensuring no double bookings.

Highlights
  • Schedule directly in Messages
  • Share availability with one tap
  • Recipients book without the app
  • Automatic calendar sync
  • Customizable meeting lengths and times
  • Private by design
Features
Read full description

Availability turns scheduling into a single message. Open any conversation in Messages, tap +, choose Availability, and send. The other person sees the times you’re actually free, picks one, and it’s booked — no links to copy, no accounts to create, no back-and-forth. SEND IN TWO TAPS Pick an activity — Coffee, Lunch, Drink, Meeting, or one you create — and send. Each preset remembers its own length, date window, and hours, so “grab a coffee” is one tap and done. ALWAYS ACCURATE Availability reads your calendars on your device and hides anything that’s busy. If your week fills up after you send, the times you offered update automatically. Nobody can book over a meeting. THEY DON’T NEED THE APP Recipients pick a time right inside the message bubble, or on a simple web page if they don’t use iMessage. No sign-up, no email address, no app download required. They confirm, tap Add to Calendar, and they’re done. IT LANDS ON YOUR CALENDAR Confirmed bookings go straight into the calendar you choose — iCloud, Google, or any calendar on your iPhone — and the time is instantly held so nobody else can take it. TUNE ANY SEND Change the meeting length, the date range, or the hours (mornings only, afternoons, evenings, or custom) for just this message without touching your defaults. PRIVATE BY DESIGN Event titles, notes, and attendees never leave your phone. Availability only uses busy/free time to calculate what to offer. SET UP ONCE Choose which calendars to check for conflicts, which calendar to add bookings to, your normal working hours, and your default meeting length. After that, everything happens in Messages. Availability is the missing scheduling button in Messages.

Screenshots

Availability Sync4 screens
Availability4 screens

Verdict

The call

The clearest difference is rating: Availability at 5.0 against Availability Sync's 4.4. On price, ratings volume, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Availability holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 5 and 3 respectively.

Scorecard1 real difference · 9 level
Availability Sync versus Availability: the parameters behind the verdict, then further details
ParameterAvailability SyncAvailability
PriceFreeFree
Rating4.4 (5 ratings)5.0 (3 ratings) — better
Positive reviews66.7% of reviews—
Number of ratings5 — better3
Update frequencyWeekly—
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.517.0 — better
Further details — not scored
Size10 MB5 MB
Age rating4+4+
DeveloperDavid FuerstConscience Protocal

Customer experience

Availability Sync

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

Availability

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Availability Sync

No in-app purchases

None

Availability

No in-app purchases

Questions

Is Availability Sync free?
Availability Sync is free to download, with no in-app purchases.
Is Availability free?
Availability is free to download, with no in-app purchases.
Which has better reviews, Availability Sync or Availability?
Availability is rated higher. Availability Sync averages 4.4 out of 5 from 5 ratings, while Availability averages 5.0 from 3 ratings.
Do Availability Sync or Availability have ads?
Neither Availability Sync nor Availability shows ads.

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