gtsync: Sync Tasks & Reminders
Connect Google Calendar to iOS
$4.99 · Designed for iPad
Two-way sync between Google Tasks (including tasks in Google Calendar) and the native Reminders app.
Finally, a seamless way to keep everything you need to do in one place. 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.
Improvements:
• A trailing ⋯ button on each backup row in Settings → Backups opens the row's Restore / Export / Delete actions on a short tap, so the actions are reachable without long-pressing.
• Long-pressing a backup row on iPhone / iPad opens the same Restore / Export / Delete actions, matching how the row already responded to long-press in the context menu.
• "Take Over Sync" now turns off Background Sync on this device before claiming the lock, with a rewritten confirmation dialog that names the other device, warns about duplicates from parallel iCloud-synced Apple Reminders, suggests creating a backup and restoring it as a migration path, and explains the Background Sync side effect (omitted when Background Sync is already off). Cancel is the default button.
• Backup retention now considers backups across all storages together, so an old local backup is no longer kept indefinitely just because every other backup for the same device happens to live in Google Drive or iCloud.
• Brief Google Tasks or Google Drive throttling is absorbed silently rather than surfacing as a sync error, and longer bursts are retried on the next scheduled sync instead of failing terminally.
• Sync error messages now include Google's own description of what failed instead of just the HTTP code.
• The cross-device sync lock refreshes once per day instead of on every sync, and remembers where the lock lives so most syncs skip an extra Google Drive lookup. Both reduce the load this app puts on Google Drive.
• Cross-device lock takeover is now always manual — through the "Take Over Sync" button on the sync dashboard — instead of being taken over silently after one hour. An older device that comes back online overnight no longer claims the lock from the device that's actively syncing.
Bug fixes:
• The cross-device sync lock no longer skips its daily refresh when it happens to run right at local midnight in your time zone.
• Sync recovers automatically when the app's local notes about the cross-device lock have gone stale (e.g. another user manually cleared the app's Google Drive folder).
• Tapping Export Backup… on iPad no longer crashes the app; the share sheet now appears as an arrow-less popover anchored to the screen center.
• The exported backup file is removed from the temporary directory after the share sheet dismisses, so it no longer accumulates there between exports.
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.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Florian Kaiser
- Size
- 3.3 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.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © Florian Kaiser

