Availability Sync vs ShiftWave
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
ShiftWave
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Shift Calendar Simple Calendar App for Repeating Shift Schedules & adding notes/highlight colors for any day. Choose from color themes, and customize to your schedule. Export to other calendars, like Google Calendar and/or Apple Calendar. View Pitman Schedule, 4 On / 2 Off, 5 On / 3 Off or any custom schedule. Throw away your paper schedule! Upgrade for Pro Features like adding notes, highlight colors for any day, override a day's text on the calendar, share schedule, and more! For anyone that has a rotating/repeating shift schedule -- Calendar/Schedule app, for example if police officers wish to view which squads work together and which squads have days off. Tap Settings-->Set Rotation Days to change schedules - supports any combination of custom text.. For instance, supports 3 squads, with repeating schedules of: • 5 days on, 2 days off, then 5 days on, 3 days off • 4 days on, then 2 days off • ... or make your own schedule, like: On, On, On, Off, Off, Off or AA, BB, CC, DD Tap on Edit button for any day to view the screen and Add Notes for any day or highlight it a color for important dates. Tap on Set Rotation Days to customize the days to rotate (add, remove, move days around) to make the schedule exactly match your own. Load quick setup codes to download a predefined schedules so you don't need to enter it manually. You can enter a 4 digit code to instantly set up your schedule. ** If your schedule is similar to one of the quick setup codes, you can edit it to make it like your own. If you want to add your schedule to the list, just email support with your schedule name and the text (ie: On,On,On,On,Off,Off -- or A,A,B,B,C,C -- or D,D,D,-,-,-,N,N,N,N, etc...) ** Please contact support before leaving any negative reviews, we can almost always help. Automatically highlight a color for text string for the calendar by setting it one time in settings. Choose up to 3 different colors/string combos. * Subscription provides access to premium features including ad removal, note editing, and quick setup codes for the duration of the subscription. * Subscriptions will automatically renew unless canceled within 24-hours before the end of the current period. You can cancel anytime with your iTunes account settings. For standard Terms of Use, please visit: https://www.apple.com/legal/internet-services/itunes/dev/stdeula Feel free to contact support if you have any other questions or issues: myprojectxinc@gmail.com
Screenshots
Verdict
The clearest difference is in-app purchases: Availability Sync at none against ShiftWave's 3. Availability Sync also leads on ads (none vs shown). ShiftWave's advantage is iOS requirement (13.0 vs 17.5). On price, update cadence and device support 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. ShiftWave sells 3 in-app purchases, starting at $0.99 per month. Availability Sync asks for nothing beyond the download.
Availability Sync ships an update weekly, ShiftWave every 6 days. The most recent releases landed on June 2, 2026 and September 10, 2026 respectively.
| Parameter | Availability Sync | ShiftWave |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (5 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Weekly | Every 6 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.5 | 13.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 76 MB |
| Age rating | 4+ | 12+ |
| Developer | David Fuerst | MyProjectX, Inc. |
In-app purchases
Availability Sync
No in-app purchases
ShiftWave
- ShiftWave Premium - Monthly7 Days trial$0.991 Month
- ShiftWave Premium - Annual7 Days trial$9.991 Year
- ShiftWave Premium - Lifetime$24.99
Questions
Is Availability Sync free?
Is ShiftWave free?
Do Availability Sync or ShiftWave have ads?
Which is updated more often, Availability Sync or ShiftWave?
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