Chrono Privacy Policy
Effective Date: July 24, 2026 • Chrono - Time Tracker Browser Extension
100% Offline & Local-First Privacy Commitment
Chrono is strictly engineered as a local-first application. We do not operate user accounts, external analytics servers, data trackers, or cloud databases. Your tracked hours, client project details, and preferences never leave your device unless you manually initiate a backup.
1. Data Storage & Local Storage
All time tracking logs, tags, custom color choices, project names, and options page configurations are stored exclusively inside your web browser using Chrome's native local storage API (chrome.storage.local).
- No personal information (PII) is recorded or transmitted.
- Data remains intact locally on your disk until you uninstall the extension or clear site storage.
- You can export your complete raw data anytime via CSV, JSON, or printable PDF reports.
2. Zero Third-Party Analytics or Tracking
Chrono does not contain telemetry software, advertising SDKs, session recording tools, or third-party analytics (such as Google Analytics or Mixpanel). We do not capture or monitor:
- Your browsing history or active browser tab titles.
- Your IP address, location, or network identifiers.
- Keyboard input outside extension inputs.
3. Optional Google Drive Sync Integration
Chrono provides an optional Cloud Backup feature. If you explicitly choose to connect your Google Drive account:
- Authentication is performed directly with Google via official OAuth 2.0.
- Chrono requests access only to its dedicated application folder (
drive.appdata) in your Google Drive. Chrono cannot view, read, or edit any other files on your Google Drive. - Backup JSON files are uploaded straight from your local browser directly to Google Drive servers — no intermediate servers are involved.
4. Extension Permissions Explanation
Chrono requires only essential Manifest V3 browser permissions to function:
Saves timer logs and user options locally on your machine.
Schedules background timers for active tracking sessions.
Detects system inactivity to prompt saving or discarding idle time.
Displays quick control timer window from the browser toolbar.
5. Policy Updates & Contact Information
Should our privacy policies update due to browser platform API changes, revisions will be posted directly to this subpage.
If you have any questions or feedback regarding Chrono's privacy design, contact us at:
© 2026 Chrono - Time Tracker. All rights reserved.