The browser extension confirms every payment method before your card is charged. The mobile app scans every SMS, WhatsApp, and Telegram message for scams — all locally, all private.
Desktop browser extension for checkout protection. Android app for scam detection across every messaging app.
Payment Guard intercepts every checkout — PayPal, Stripe, Shopify — before your card is charged.
Privacy-first scam detection across your messaging apps. Scans SMS, WhatsApp, Telegram — all on-device.
Wallet address verification against known-scam databases before you send any crypto.
Payment fraud and scams are accelerating. ChargeGuardian is your first and last line of defense.
ChargeGuardian detects these real-world scam types every day. Each category represents actual attack patterns targeting real people.
Fake Invoice Scams
"Your PayPal payment of $499.99 is processing." Contains a phone number or link that goes to scammers, not PayPal. The extension catches the fake domain. The app catches the phishing message before you tap.
Brand Impersonation
"Your Netflix account is suspended" from netflix-verify.com. The email looks perfect — same colors, same logo. The extension flags the domain mismatch. The app scans the notification before you open it.
Impersonation Scams
"Hey mom, I broke my phone, this is my new number. Can you send $800 for rent?" Or someone pretending to be your landlord with a different cashtag. Our app flags mismatched sender identities.
ChargeGuardian was built with a radical commitment to privacy. We don't want your data.
We collect exactly $0 worth of your data. No analytics, no tracking, no selling.
All screening happens on your device. Your payment details never leave your browser.
Core detection logic is open source. Anyone can audit what we do — and verify what we don't.
We request only the minimum browser permissions needed. No reading your history or tabs.
No subscriptions. No hidden fees. Just protection that works.
"I built ChargeGuardian because I was tired of seeing people get ripped off. My own mom got scammed. My friends kept hitting 'pay' on the wrong card. Payment platforms profit from your mistakes — and nobody was building a real guardrail. So I did. This isn't a startup play. It's a promise."
Join the waitlist. Free extension available now on Chrome Web Store. Mobile app coming to Google Play soon.