WhenAvailable vs Availability Sync
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
WhenAvailable
Easily find the best date and time for group events. Suggest multiple options and let attendees vote, or RSVP to invitations. Guests don't need the app to participate.
- Create unlimited polls
- Invite guests via email or link
- Real-time poll results
- Add themes to polls
- RSVP to invitations
- Guest group storage
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Find the date/time that works best for a group of people. WhenAvailable helps you schedule your event based on when everyone can be there. Whether it is a dinner party, board meeting, or a guys' night out, the app makes it easy to find when works best for the group. Simply select dates and times you want to suggest for your event and then either send invitation emails to your guests through the app or copy a link to share with your guests on social media or via text messaging. Your guests do not need to have the app, sign in, or have an account to mark the times that work for them. WhenAvailable makes it quick and easy to find the best possible time for your event. Use the app for free to: - Create an unlimited number of polls - Invite up to 20 people to vote in each poll by either sending them an email invitation or sharing a link via text or social media to the poll - Real-time poll results - Add a THEME to your poll - View and send messages regarding a poll - RSVP to a poll others have sent you - Store a single guest group if you send a poll repeatedly to the same group of people - The app is always ads-free Optionally, you can buy a Premium subscription to the app. With the Premium subscription, you have a few added benefits, e.g.: - As an organizer, you can vote on behalf of your guests - Upload a cover image and logo for your poll - Invite an unlimited number of guests to the polls you create - Store an unlimited number of guest groups - Send reminders to guests who have not yet voted If you choose to purchase the Premium subscription, your subscription automatically renews annually. You can manage your subscriptions and can turn off auto-renewal by going to your iTunes Account Settings after purchase. The current subscription price is $37.99 USD per year plus tax where applicable. You may also choose to upgrade a single poll with a One-Time Premium purchase. The current price for a One-Time Premium is $9.99 USD plus tax where applicable. When you apply your One-Time Premium credit to a poll you get all the same benefits of the Premium Subscription apart from the additional guest groups. If you have any questions or feedback we are always happy to hear from you: https://whenavailable.com/contact or support@whenavailable.com Terms of Use: https://whenavailable.com/terms Privacy Policy: https://whenavailable.com/privacy
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.
- Instant availability sharing
- Calendar integration (iOS, Google, Outlook)
- Customizable sharing messages
- Professional calendar invitations
- Multiple time slot selection
- Time zone management
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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
Verdict
The clearest difference is in-app purchases: Availability Sync at none against WhenAvailable's 2. Availability Sync also leads on update cadence (weekly vs monthly) and review sentiment (67% vs 50%). WhenAvailable's advantage is iOS requirement (15.0 vs 17.5). On price, rating, ratings volume and ads 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
Both are free to download. WhenAvailable sells 2 in-app purchases, starting at $37.99 per year. Availability Sync asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.3 for WhenAvailable against 4.4 for Availability Sync. Both are backed by a comparable volume of ratings — 7 and 5 respectively. Written reviews are what separate them: 50% of WhenAvailable's written reviews are positive against 67% of Availability Sync's.
WhenAvailable ships an update monthly, Availability Sync weekly. The most recent releases landed on October 7, 2026 and September 29, 2026 respectively.
| Parameter | WhenAvailable | Availability Sync |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (7 ratings) | 4.4 (5 ratings) — better |
| Positive reviews | 50.0% of reviews | 66.7% of reviews — better |
| Number of ratings | 7 — better | 5 |
| Update frequency | Monthly | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.5 |
| Further details — not scored | ||
| Size | 58 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | WhenAvailable LLC | David Fuerst |
Customer experience
WhenAvailable
Availability Sync
In-app purchases
WhenAvailable
- Premium Membership$37.991 Year
- OneTime Premium$9.99
Availability Sync
No in-app purchases
Questions
Is WhenAvailable free?
Is Availability Sync free?
Which has better reviews, WhenAvailable or Availability Sync?
Do WhenAvailable or Availability Sync have ads?
Which is updated more often, WhenAvailable or Availability Sync?
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