Block It Out vs gtsync
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Block It Out
This app automates calendar synchronization across multiple accounts, ensuring you're never double-booked. It protects your privacy by blocking busy times without revealing personal event details, all while operating seamlessly in the background.
- Automated event blocking
- Privacy protection for events
- Seamless background synchronization
- Customizable shadow event titles
- Flexible filtering options
- Support for recurring events
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Block It Out is the easiest way to make sure you're never double-booked again across multiple accounts. Automatically convey availability and protect your privacy with no manual effort. Block It Out uses intelligent event blocking and performs seamless synchronization behind the scenes. Best of all, it does this without talking to the cloud or any external services. Privacy-First Design • Block out busy time in work calendars without revealing personal event details • Create "shadow events" that show you're busy without exposing sensitive information • Customize shadow event titles to maintain professional boundaries Smart Sync Rules • Set up automated rules to sync between any calendar accounts • Choose source calendars and target destination calendars • Advanced filtering options to sync only specific events • Supports recurring events with full recurrence pattern preservation Flexible Filtering • Filter events by title, duration, or custom conditions • Advanced users get hierarchical AND/OR logic for complex rules • Create sophisticated event matching patterns Seamless Background Operation • Automatic background synchronization keeps calendars updated • Real-time notifications when sync operations complete • Works across all your calendar accounts (iCloud, Google, Exchange, etc.) Perfect for Work-Life Balance • Sync personal appointments to work calendar as "busy" blocks • Maintain calendar privacy while ensuring scheduling conflicts are avoided • Professional appearance with customizable shadow event templates Perfect for Work-Work Balance • Consultants: sync your availability across competing clients • Founders: maintain clear availability across your multiple ventures, or your day job and your side hustle • Executives: give your EA access to availability across external commitments without divulging sensitive information Subscription Tiers • Free: 1 sync rule to demonstrate basic functionality • Essential: Up to 2 rules, with privacy filtering and custom shadow titles • Advanced: Unlimited rules, multiple destinations, advanced conditions, rollback capabilities, and custom templates Advanced Features (Advanced Tier) • Multiple destination calendars per rule • Custom shadow event templates and reminders • Transaction rollback system for safe operations • Hierarchical rule logic with AND/OR groups • ...and more! Whether you're coordinating between personal and work calendars, managing multiple business accounts, or simply want to maintain privacy while staying organized, Block It Out provides the automation and control you've needed since the whole thing went digital. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: https://block-it-out.com/privacy.html
gtsync
Seamlessly synchronize your tasks and reminders between Google Tasks and Apple Reminders. This app ensures your to-do lists are always up-to-date across your devices with automatic, bi-directional syncing.
- Bi-directional sync
- Auto-discovery of lists
- Conflict resolution
- Activity log
- Background sync
- Siri Shortcuts
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Two-way sync between Google Tasks (including tasks in Google Calendar) and the Reminders app (including Reminders in the Calendar app). A seamless way to keep everything you need to do synchronized across both platforms. gtsync securely connects Google Tasks to the Reminders app. Add a reminder using Siri on your commute, and it's waiting for you alongside your tasks in Google Calendar on your laptop. Check an item off in your browser, and it clears from your iPhone. One unified workflow, zero friction. Sync and organization • Bi-directional sync between the Reminders and Google Tasks apps • Sync reminders in the native Calendar app and tasks in the Google Calendar app • Sync titles, notes, completion status, and due dates • Discover and match task lists and reminder lists • Choose which lists are included • Automatically include new lists if you want • Create a missing list automatically when needed Review and resolve changes • See pending creates, updates, and deletions before applying them • Review the direction, list, timestamp, and changed fields for each item • Compare both versions when an item changed in both services • Choose whether to keep the Google Tasks or Reminders version • Optionally resolve conflicts automatically using the most recently modified version Automatic and on-demand sync • Optional background sync takes care of staying in sync • Use the Siri Shortcuts action to sync on demand, in an automation, or when you open a task app • Get notified about conflicts and other issues that need your attention Safety and visibility • Configurable safety threshold for large batches of automatic changes • Automatic sync pauses when the threshold is exceeded so you can review first • Activity history with sync actions, errors, and timestamps • Progress indicators and the ability to stop an in-progress sync Statistics • Day, week, and month views of your sync activity, with quick navigation between periods • At-a-glance totals for items synced, completed, conflicts, and errors • Activity chart showing creates, edits, completions, uncompletions, and deletions over time • Breakdowns by direction, action, and list • Tap any breakdown to see the matching entries in your activity history Privacy • Sync processing and sync history stay on your device • Connects directly to Reminders and your Google account Limitations gtsync syncs titles, notes, completion state, and due dates between Reminders and Google Tasks. The following fields do not sync due to platform differences and limitations: • Attachments • Alerts / reminders • Priority • Recurrence (repeating tasks) • Time-specific due dates (reduced to date-only values)
Screenshots
Verdict
The clearest difference is price: Block It Out at Free against gtsync's $4.99. Block It Out also leads on rating (5.0 vs 4.8) and iOS requirement (15.5 vs 26.2). gtsync's advantage is in-app purchases (none vs 2) and chart position (#51 vs unranked). On review sentiment, ratings volume, update cadence 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
Block It Out is free to download; gtsync costs $4.99 up front. Block It Out sells 2 in-app purchases, starting at $4.99 per month. gtsync asks for nothing beyond the download.
Block It Out holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 2 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Block It Out ships an update every 10 days, gtsync every 2 weeks. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.
| Parameter | Block It Out | gtsync |
|---|---|---|
| Price | Free — better | $4.99 |
| Rating | 5.0 (2 ratings) — better | 4.8 (4 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 2 | 4 — better |
| Update frequency | Every 10 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium — better | Paid |
| Best chart rank | — | #51 — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.5 — better | 26.2 |
| Further details — not scored | ||
| Size | 11 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Isaiah Weiner | Florian Kaiser |
Customer experience
Block It Out
gtsync
In-app purchases
Block It Out
- Block It Out - Essential$4.991 Month
- Block It Out - Advanced$19.991 Month
gtsync
No in-app purchases









