MailShield Guardian ("we", "our", or "us") is committed to protecting your privacy.
This policy explains what information we collect, how we use it, and your rights as a user.
Information We Collect
Scan content you submit — mail photos, SMS text, email text, and phone numbers —
used only to perform fraud analysis and not stored after your result is returned.
Email content (if you connect Gmail or Outlook) — when you use inbox scanning,
individual email subjects and bodies are sent to our AI for fraud analysis only. We access your inbox
read-only via OAuth; we cannot send, delete, or modify emails. Email content is not stored after your
result is returned.
Anonymous device identifier — a random ID assigned at first launch,
never linked to your name or email address.
Purchase and subscription status — managed by RevenueCat to verify your
subscription tier (Free, Pro, or Family).
We do not collect your name, phone number, location, or contact list. Your Gmail or Outlook
email address is used solely to authenticate your OAuth connection and is not stored or shared.
How We Use Your Information
Fraud analysis — your submitted text or images are sent to our AI service
(Claude by Anthropic) to detect scam patterns. Content is not stored by Anthropic after analysis.
Community protection — high-risk scan patterns (never your personal details)
may be stored anonymously to warn other users of similar threats.
Subscription management — to verify your access to Pro or Family features.
Third-Party Services
Firebase (Google) — cloud infrastructure for anonymous authentication and scan storage.
Privacy policy
RevenueCat — subscription management and payment processing.
Privacy policy
Google (Gmail API) — read-only inbox access when you connect Gmail for email monitoring.
Privacy policy
Microsoft (Graph API) — read-only inbox access when you connect Outlook/Microsoft 365 for email monitoring.
Privacy policy
Apple processes payments via the App Store. We never see your payment card details.
Data Retention
Scan content is processed in real-time and not stored beyond what is needed to return your result.
Anonymous scan metadata (risk level, category, timestamp) may be retained for up to 12 months
to support community fraud detection. You may request deletion at any time by contacting us.
Your Rights
You may request access to, correction of, or deletion of any data associated with your
anonymous device ID. Because we do not collect your name or email, requests must include
your anonymous user ID.
California residents have additional rights under CCPA. EU/UK residents have rights under GDPR.
We do not sell your data to third parties.
Children
MailShield Guardian is not directed at children under 13. We do not knowingly collect
personal information from children under 13.
Changes to This Policy
We may update this policy from time to time. The updated version will be available in the app
and at this URL. Continued use of the app after changes constitutes acceptance.
Contact Us
If you have questions about this privacy policy or your data, please contact: