Live on App Store + Google Play

MailShield Guardian

AI Fraud & Scam Protection

Suspicious letter in your mailbox? Sketchy text? Robocall? Phishing email? Snap a photo or paste the message — MailShield runs it against a community-built scam fingerprint engine and tells you, in plain English, whether it's safe, suspicious, or definitely a scam.

🍎 Download on the App Store ▶ Get it on Google Play

See it in action

Scan anything. Get a verdict in plain English.

Real screens from the live app — including the community intelligence banner: when others have already reported the same threat, your verdict says so.

MailShield Guardian home screen — choose what to check: scan mail, check a phone call, a text message, an email, or check before paying — Pick what to check — mail, calls, texts, email.

Scan result screen showing a DANGER verdict for a fake banking alert, a what-to-do card, and the community banner: others have reported this threat — A verdict, what to do next — and community confirmation when others have reported the same threat.

Text message checker screen — paste a suspicious text for instant analysis — Paste a sketchy text. Get an answer in seconds.

What it analyzes

Every channel scammers use to reach you.

Physical mail

Photograph the envelope or letter. AI extracts the text and checks for IRS-impersonation, fake medical bills, sweepstakes scams, and more.

Texts + emails

Paste any suspicious message. Get a verdict on phishing patterns, urgency tricks, malicious links, and known scam fingerprints.

Phone numbers

Check unknown callers. Cross-referenced against community-reported scam numbers and pattern analysis.

The fingerprint engine

Every scan grows the shield.

MailShield isn't pulling scam data from a static list — it's building one with every user. Each anonymous scan extracts a fingerprint (a phone number, sender pattern, URL, or claim signature), strips your personal context, and joins the collective. The next person who encounters that fingerprint gets a verdict in seconds. The shield gets denser every day.

You scan

A suspicious text, robocall number, or impersonation letter. Claude analyzes it, and the verdict comes back.

Fingerprint extracted

The scammable signature — phone, URL, sender pattern, claim DNA — is stripped of your personal context and stored anonymously in the collective.

Next user shielded

Someone receives the same scam tomorrow. Their app cross-checks the collective and returns a fast, confident "Scam" — without ever knowing it was your scan that taught it.

Pricing

Generous free tier. Pro unlocks always-on protection.

Free

$0/month

Unlimited scans, every channel
AI analysis (Haiku → Sonnet escalation on text/email/SMS)
Voicemail Scanner, QR codes, payment links
Community scam database + Regional Scam Feed
Defender Badges + Fraud Resilience Score
Senior Mode, Trusted Contacts, Recovery Wizard
CallKit blocking + Live Scam Radar map
No ads, no tracking, anonymous sign-in

Pro

$6.99/mo · $49.99/yr

Everything in Free, plus:
Auto-Protect — background monitoring of Gmail, Outlook, IMAP, SMS & calls
Batch scanning — up to 5 messages at once
Unlimited scan history (vs last 3 on Free)
Sonnet AI directly on physical-mail scans
7-day free trial

Family

$9.99/mo · $89.99/yr

Everything in Pro, plus:
Family Dashboard — see what your family scans, get alerted on threats they hit
Up to 5 members via Apple Family Sharing
Real-time alerts when a family member flags a scam

Prices shown are US tier. Other regions vary — exact pricing displayed at checkout via Apple / Google.

Privacy by design

MailShield never knows who you are.

Anonymous sign-in. No email, no password, no social login. The scam content you scan is processed in-memory only — never stored. Only the anonymized scam fingerprint is contributed to the community database, and even that isn't linked to your identity.