Privacy Policy

Effective date: March 18, 2026

Altus Labs LLC ("we", "us", "our") operates the Connect for Fastmail Chrome extension and related website. This Privacy Policy explains what data we collect, how we use it, and your rights.

1. Data We Collect

Account Information

When you create an account or start a trial, we collect your email address and payment information (processed by our payment provider — we do not store card numbers).

Attachment Data

When you preview a document, the attachment is temporarily uploaded to our Monolith Docs API for rendering. Documents are processed in memory and are not stored permanently. Rendered sessions are discarded after the preview window is closed or after 24 hours, whichever comes first.

Extension Usage Data

We collect basic, anonymized usage telemetry: number of previews opened, file types used, and error events. We do not collect the contents of your emails, attachment filenames, or browsing history.

Waitlist & Contact Forms

If you join our waitlist or contact us, we store your email address to communicate with you about the product.

2. How We Use Your Data

• To provide and maintain the document preview service
• To manage your subscription and process payments
• To send transactional emails (receipts, trial expiry, account changes)
• To improve the extension based on anonymized usage patterns
• To respond to support requests

3. Data Sharing

We do not sell your data. We share data only with:

• Payment processor — to handle subscription billing
• Hosting infrastructure — to operate the document rendering service

All third-party processors are bound by data processing agreements and handle data solely on our behalf.

4. Data Retention

• Documents: Discarded immediately after preview session ends, or within 24 hours maximum.
• Account data: Retained while your account is active. Deleted within 30 days of account closure upon request.
• Usage telemetry: Aggregated and anonymized; retained indefinitely in aggregate form.

5. Chrome Extension Permissions

Connect for Fastmail requests only the minimum Chrome permissions needed to operate:

• Host permissions for Fastmail — to detect and intercept attachment clicks within the Fastmail web app.
• Host permissions for our Docs API — to upload and render attachments.

We do not access other tabs, browsing history, or any data outside the Fastmail web application.

6. Your Rights

You may at any time:

• Request a copy of the personal data we hold about you
• Request correction or deletion of your data
• Uninstall the extension to immediately stop all data collection
• Cancel your subscription

To exercise any of these rights, email us at privacy@altuslabs.net.

7. Security

All data in transit is encrypted via TLS. Document rendering sessions are isolated and ephemeral. We follow industry-standard practices to protect your information.

8. Children's Privacy

Connect for Fastmail is not directed at children under 13. We do not knowingly collect data from children.

9. Changes to This Policy

We may update this policy from time to time. Material changes will be communicated via email or a notice in the extension. Continued use after changes constitutes acceptance.

10. Contact

Altus Labs LLC
Email: privacy@altuslabs.net