Last Updated: December 27, 2025
Google Calendar Event Checker ("we," "our," or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, store, and protect your information when you use our Chrome extension and associated services. CalCheckr is a product name, not a separate legal entity, and the Service is operated by the individual owner of the calcheckr.com domain.
Google Calendar Event Checker is operated by the owner of the calcheckr.com domain (“CalCheckr”). For users in the EU or UK, that operator acts as the data controller for the personal information described here. You can reach our privacy team at support@calcheckr.com.
The Enable reporting toggle in the extension options controls whether we send crash diagnostics to Sentry. When the toggle is off (default), monitoring is fully disabled. When you opt in, we send device metadata (browser version, operating system, language, and extension version) along with sanitized error stack traces so we can resolve bugs faster. We strip navigation URLs and event identifiers before sending so that Sentry never receives Google Calendar content or personal profile information.
When you use the workspace admin console, we process workspace-level information including your Google Workspace domain, manager contact details, subscription status, billing information, and seat allocation data. We maintain a workspace member list showing email addresses, seat assignments, and account status for users who have signed in to the extension, enabling the workspace manager to manage access. This member list is visible only to the workspace manager through the admin console. Workspace member lists include only users who have individually authenticated with the extension and do not include directory-wide listings.
Workspace Roles: When a workspace license is used, the workspace manager acts as the administrator for seat management and billing purposes. Individual workspace users remain the data subjects for their personal Google account data and calendar access. The workspace manager cannot access users' calendar content or OAuth tokens through the Service. Workspace subscription managers are designated based on user confirmation during onboarding and are not verified against Google Workspace administrative roles.
The workspace manager cannot view, access, or retrieve calendar events, calendar metadata, OAuth tokens, or event content belonging to workspace users. The workspace manager can view only the email addresses and seat status of users within their own verified domain and cannot access data across other domains or personal Google accounts.
We use your information solely to:
When you sign in to the workspace admin console, we securely communicate your workspace subscription status to the extension so it can enable appropriate features. No calendar content is shared in this process.
We do not use Google user data for advertising, profiling, or selling to third parties.
Where GDPR or UK GDPR applies, we rely on the following lawful bases to process personal information:
You may withdraw consent at any time.
We store only the information needed to deliver the extension, such as OAuth tokens, session details, subscription status, and your selected preferences. We never store your calendar event titles, descriptions, attendees, invitees, or other event content on our servers. Extension options and premium status are saved locally in Chrome storage so they are deleted when you uninstall or clear your browser data. Server-side data lives in Google Cloud Firestore, travels over secure (HTTPS) connections, and is protected with role-based access controls and encryption at rest. We generate non-personal, hashed device identifiers to help detect suspicious login activity.
No method of transmission or storage is completely secure, and we cannot guarantee absolute security of your data. You acknowledge that you use the Service at your own risk. You are responsible for maintaining the confidentiality of your Google account credentials and for notifying us promptly if you suspect unauthorized use.
We do not sell or rent your personal information or share it for cross-context behavioral advertising. We share limited data only with service providers that support the extension:
Our public website may link to other resources (for example, Stripe or support documentation). Those sites have their own privacy practices, so please review them before sharing information.
We may also disclose information if required by law, court order, or governmental request, or if we believe in good faith that such disclosure is necessary to protect our rights, investigate fraud, or ensure the safety of users. We do not use or share your data for advertising, marketing, profiling, or training AI models.
We operate primarily from the United States and may process data on servers located there or in other countries where our service providers operate. By using the Service you acknowledge that your information may be transferred to jurisdictions that may not provide the same level of protection as your home country. When required, we rely on Standard Contractual Clauses or other legally recognized safeguards to facilitate those transfers.
Our extension requests the following Google OAuth scopes:
We only use these permissions for the stated purposes and never access data beyond what's necessary for the extension's functionality.
Google API Limited Use Disclosure: Our use and transfer of information received from Google APIs will adhere to the Google API Services User Data Policy, including the Limited Use requirements.
We keep your data only as long as necessary to provide the Service. OAuth tokens are removed when you revoke the extension's access from your Google Account settings, while signing out clears only the local session data. Subscription records may be retained while your subscription is active and for a short period afterward for operational needs. Local extension storage (such as option toggles and premium flags) is controlled by your browser and is deleted automatically when you uninstall the extension or clear Chrome sync data.
Workspace manager sessions are automatically terminated after a short period of inactivity for security. Workspace member list and billing records are retained while the workspace subscription is active and as required by law or accounting practices thereafter. When a workspace subscription is cancelled, we may retain workspace-related data (such as member email addresses and seat assignments) for as long as reasonably necessary to support billing reconciliation, account recovery, dispute resolution, fraud prevention, and legal compliance. We do not use retained workspace data for active service delivery once a subscription is no longer active. Optional Sentry diagnostics are retained for up to 90 days and consist solely of anonymized device information.
If you subscribe to optional newsletters, we retain your email address for that purpose until you unsubscribe.
You have the right to:
California residents are entitled to exercise these rights without discrimination, and EU/UK residents may also lodge a complaint with their local supervisory authority if they believe we have processed data in violation of applicable law.
By supplying information about other individuals (for example, if you email us on someone's behalf) you confirm that you have their authorization to do so.
To exercise these rights, contact us at: support@calcheckr.com
We use essential session cookies to authenticate users and maintain secure sessions. These include cookies for the extension authentication flow and workspace admin console access. All authentication cookies are configured with security best practices (HttpOnly, Secure flags) and automatically expire after a short period. Temporary cookies are also used during OAuth authentication and are deleted immediately after completing the sign-in process.
You can view specific cookie names and settings in your browser's developer tools. We do not use cookies for tracking or advertising purposes.
Our website analytics (Cloudflare Web Analytics) operates without cookies and does not track individual users. You can adjust your browser settings to control cookie preferences.
The Service currently does not respond to "Do Not Track" signals because there is no industry-standard way to interpret them, but you can use browser settings or extensions to limit tracking technologies.
Our service is not directed to children under 13 (or 16 in the EU). We do not knowingly collect personal information from children. If you believe a child has provided us with personal information, please contact us immediately.
We may send essential transactional emails (such as welcome messages, onboarding information, service notices, trial reminders, and security alerts) without a separate opt-in because these are required to operate your account.
When you sign up or start a trial we may send onboarding tips, release notes, and promotional updates. You may opt in to receive newsletters and similar announcements. Every non-essential email includes an unsubscribe link. Even if you unsubscribe, we may continue sending required transactional emails (such as receipts, security alerts, or important service notices).
We may update this Privacy Policy from time to time. Please review it periodically—your continued use of the service after changes constitutes acceptance of the updated policy. This Policy is interpreted in accordance with applicable laws, and nothing in it limits your rights under those laws.
If you have questions, concerns, or requests regarding this Privacy Policy or your personal data, please contact us:
Email: support@calcheckr.com
Website: https://calcheckr.com