Two-way sync between Google Tasks (including tasks in Google Calendar) and the native Reminders app (including Reminders in the native Calendar app).
A seamless way to keep everything you need to do synchronized across both platforms. gtsync securely connects Google Tasks directly to the native 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.
Core Sync
• Bi-directional sync between Apple Reminders and Google Calendar (including Google Tasks)
• Auto-discovery of your Reminders lists and matching Google lists
• Automatic list creation on the other side when missing
• Per-list enable/disable toggle
• Auto-enable new lists setting
Conflict Resolution
• Automatic detection when an item changes on both sides since last sync
• Manual resolution: side-by-side comparison with field-level diff highlighting
• Automatic resolution: keeps the more recently modified version
Activity Log
• Full audit trail of every sync action with timestamps
• Field-level change tracking (title, notes, status, due date)
• Auto-cleanup after 60 days (configurable)
Sync Triggers
• Background sync (Background App Refresh)
• Siri Shortcuts: "Sync Tasks" intent for automations
Safety
• Configurable threshold (10–1000): pauses background sync when pending changes exceed limit
• Warning banner in Changes and Settings screens when threshold exceeded
• Notification alert when threshold is exceeded
Privacy
• 100% On-Device Syncing: All data processing happens locally on your device. Your reminders never leave your phone.
• Zero Creepy Tracking: No third-party analytics, no ad trackers, and no data harvesting.
Limitations
• gtsync syncs titles, notes, completion state, and due dates between the native Reminders app and Google Calendar / 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)
Ratings & Reviews
This app hasn’t received enough ratings or reviews to display an overview.
New features:
• New "Send Errors as Notifications" option for the "Sync Tasks" Siri Shortcut: when on, a sync problem that needs your attention (like an expired sign-in, or a sync paused because too many changes are pending) is reported as a notification and the shortcut still finishes successfully; when off, the error is returned to Shortcuts so an automation can react to it.
Improvements:
• On iPad in full screen, the Changes, Activity, and Settings tabs now appear as a side list instead of a bottom tab bar.
• Tapping a notification now opens the relevant screen — sync issues open the Changes screen, and backup notifications open the Backups screen — instead of just opening the app.
• Notification wording is clearer and more consistent, and notifications no longer tack on raw technical error text.
• "Sync Conflicts" notifications are no longer shown while you have the app open (the conflicts are already listed on the Changes screen).
• The "Sync Tasks" shortcut's "Ignore Network Errors" option now skips only temporary problems (being offline, timeouts, an unstable connection, a busy server, or a sync lock that can't be reached) and never hides an expired sign-in.
• When a sync is paused because too many changes are pending, the "Sync Tasks" shortcut now reports a failure instead of silently succeeding, so an automation can notice.
• A cancelled "Sync Tasks" run is now reported to Shortcuts as cancelled rather than as a failure.
• When a daily backup falls back from one cloud to another, it no longer posts a push notification (your data is still safely off-device); a backup that can only be saved locally still notifies you with "Backup Saved Locally".
• Updated the Siri Shortcuts setup guide: a single automation can trigger on several apps, the walkthrough is simpler, and it now suggests Reminders, Tasks, Calendar, and Google Calendar as trigger apps.
• The Settings screen title is now compact, matching the other tabs.
Version 1.3
The developer, Florian Kaiser, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Florian Kaiser
Size
3.5 MB
Category
Productivity
Compatibility
Requires iOS 26.2 or later.
iPhone Requires iOS 26.2 or later.
iPad Requires iPadOS 26.2 or later.
Mac Requires macOS 26.2 or later and a Mac with Apple M1 chip or later.