GACS vs Scam Sniffer
Web3 wallet-drain detector for crypto users. Honest, factual comparison — last updated September 2026.
Scam Sniffer founded 2022
Pricing: Free browser extension · Paid API
GACS: Free, no ads
| Feature | GACS | Scam Sniffer |
|---|---|---|
| Primary purpose | Consumer scam detection | Web3 wallet protection |
| Wallet-drain pre-sign warning | No (on roadmap) | Yes (specialty) |
| Website / URL check | Yes | Yes |
| Crypto wallet address check | Yes | Yes |
| Social profile scanner (IG/TikTok/X/Telegram) | Yes | No |
| Romance / pig-butchering coverage | Yes | No |
| Recovery-scam detection | Yes | No |
| Phone number check | Yes | No |
| Public per-scam intel pages indexed | 34,000+ | Limited |
| Works without browser extension | Yes | Limited |
| Real-time alerts feed (RSS) | Yes | Limited |
Where Scam Sniffer shines
- Best-in-class real-time wallet-drain detection inside Web3 dApps.
- Deep focus on phishing sites built specifically to drain wallets at signing time.
Where GACS shines
- Covers the wider attack surface: social DMs, romance, pig-butchering, recovery, phone scams.
- Works without an extension — anyone can check a URL, wallet, or profile from the web app.
- Public per-scam intel pages that anyone can share as a warning, indexed by Google.
The honest verdict
Scam Sniffer is the strongest tool for on-chain wallet protection inside Web3 dApps — many users run both. GACS covers the broader scam surface (social, romance, recovery, phone) that crypto-native tools don't touch.
All trademarks belong to their respective owners. Information based on each provider's public website at time of writing. Spot something out of date? Tell us.
Authoritative sources
Independent primary sources used to check and corroborate the guidance on this page.
- FBI Internet Crime Complaint Center (IC3)
Official US channel for reporting internet-enabled fraud and cybercrime.
- US Federal Trade Commission — ReportFraud
Consumer fraud reporting and published enforcement data.
- UK Action Fraud
UK national reporting centre for fraud and cybercrime.
- Canadian Anti-Fraud Centre
Canada's central repository for fraud reports and scam alerts.
