Strflow vs Availability Sync
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Strflow
This app offers a unique chat-style interface for taking notes, organizing them with tags, and setting reminders. It integrates seamlessly with iOS features and ensures your data is secure and exportable.
- Chat-style note-taking
- Timeline organization
- Tagging system
- Todo lists and reminders
- Quick capture from anywhere
- Rich text editor
- iCloud sync and backup
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Strflow adopts a chat-style timeline format for incredibly simple and beautiful note-taking. Experience the simplicity of note-taking in a texting-yourself style. # Build Your Timeline As you jot down notes, a personal timeline naturally forms. With tags, you can also create timelines focused on specific topics. Tags can be attached or created from anywhere, and you can easily reorder them with drag & drop in the sidebar. # Todo & Reminders, Naturally in Your Timeline Strflow turns your checklists into a dedicated Todo timeline, so you can easily review tasks, check them off, and add new ones from a single view. You can also set notes for future dates and use them as reminders. Scheduled notes stay hidden until the right time, then gently surface with notifications—right when you need them. # Quick Notes Anywhere Sync quickly and capture notes from anywhere. Open the app and start typing instantly, access Strflow from the share sheet — no need to switch apps. # Native on iOS Strflow is designed natively for iOS, blending perfectly with its look and feel. It also integrates with system features like Apple Shortcuts and the share sheet—making it easy to fit into your workflow. # Your Data, 100% Yours Your data is stored safely on your device and in iCloud. When saved to iCloud, it’s encrypted with your iCloud Keychain. For those using iCloud’s Advanced Data Protection, enjoy the added security of end-to-end encryption. All data can also be exported as Markdown, so you can take it anywhere with no lock-in. # A Powerful Editor Strflow supports a wide range of rich-text editing features, including: • Link previews • Checklists • Note links • Inline formatting (bold, italic, etc.) • Block-level formatting (lists, code blocks, quote blocks, etc.) • Images --- Strflow lets you take unlimited notes for free. By joining Strflow Plus, you’ll unlock encrypted sync and backup via iCloud. Prices may vary by location. Subscriptions will be charged to your credit card via your App Store account. Your subscription will automatically renew unless canceled at least 24 hours before the end of the current period. Once activated, subscriptions cannot be canceled. Manage your subscriptions in your App Store Account Settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited upon purchasing a subscription. The lifetime option is a one-time, non-renewing purchase that grants permanent access to Strflow Plus features. --- For any questions or feedback, please feel free to contact us at support@strflow.app. We are eager to assist and connect with you! Privacy policy: https://strflow.app/privacy-policy Terms of use: https://strflow.app/terms
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 rating: Strflow at 5.0 against Availability Sync's 4.4. Strflow also leads on review sentiment (97% vs 67%) and ratings volume (49 vs 5). Availability Sync's advantage is in-app purchases (none vs 4). On price, update cadence, ads 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. Strflow sells 4 in-app purchases, starting at $1.49 per month. Availability Sync asks for nothing beyond the download.
Strflow holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Strflow has 49 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 97% of Strflow's written reviews are positive against 67% of Availability Sync's.
Strflow ships an update fortnightly, Availability Sync weekly. The most recent releases landed on October 8, 2026 and September 29, 2026 respectively.
| Parameter | Strflow | Availability Sync |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (49 ratings) — better | 4.4 (5 ratings) |
| Positive reviews | 97.1% of reviews — better | 66.7% of reviews |
| Number of ratings | 49 — better | 5 |
| Update frequency | Fortnightly | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone, iPad, Mac — better | iPhone, iPad |
| Requires iOS | 18.0 | 17.5 — better |
| Further details — not scored | ||
| Size | 73 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Shingo Eguchi | David Fuerst |
Customer experience
Strflow
Availability Sync
In-app purchases
Strflow
- Strflow Plus (Monthly)7 Days trial$1.491 Month
- Strflow Plus (Annual)14 Days trial$14.991 Year
- Strflow Plus (Lifetime, Subscriber)$27.99
- Strflow Plus (Lifetime)$37.99
Availability Sync
No in-app purchases








