Warnvo — ShieldEngine™ Consumer Protection | Scan Bills & Fight Fraud

Scan Any Bill. Catch Junk Fees. Generate Dispute Letters Instantly.

Warnvo is the world's first AI consumer protection app. Snap a photo of any bill — hotel, medical, restaurant, contractor, auto repair — and Warnvo's AI analyzes every line item in seconds. It flags overcharges, junk fees, and illegal charges, then generates a ready-to-send dispute letter. Works in 95 languages across any country.

34 Specialized AI Tools for Consumer Protection

Hotel Bill Analyzer, Medical Bill Checker, Restaurant Receipt Scanner, Auto Repair Bill Analyzer, Contractor Bill Checker, Scam Detector, SMS Scam Detector, Phishing Email Detector, QR Code Scanner, Lease Analyzer, Bank Fee Analyzer, Insurance Claim Analyzer, Medicare Bill Checker, Paycheck Stub Analyzer, Credit Report Analyzer, Student Loan Analyzer, Gig Worker Fee Analyzer, HOA Fee Analyzer, Utility Bill Checker, Security Deposit Dispute, Prescription Price Checker, Timeshare Exit Advisor, Crypto Scam Detector, Dark Pattern Detector, Fake Job Offer Detector, Subscription Tracker, Negotiation Script Generator, Price Drop Tracker, Return Policy Analyzer, Warranty Tracker, Tip Fraud Detector, Delivery Scam Detector, Before You Sign Contract Analyzer, Junk Fee Calculator.

How Warnvo Works

Step 1: Take a photo of your bill or paste the text. Step 2: Warnvo's AI analyzes every line item against fair market rates and consumer protection law. Step 3: Get a full report flagging suspicious charges. Step 4: Download a ready-to-send dispute letter referencing the exact laws that protect you.

Works in Any Language, Any Country

Warnvo reads bills in Japanese, Spanish, French, German, Portuguese, Italian, Arabic, Thai, Chinese, Korean, and 85 more languages. Whether you're disputing a hotel fee in Tokyo, a restaurant charge in Rome, or a medical bill in the United States, Warnvo applies local market benchmarks and the consumer protection laws that apply to your situation.

Pricing

Free tier: 3 scans per day. Pro plan: $19.99/month or $149.99/year for unlimited scans and dispute letters. Family Shield: $14.99/month for up to 6 family members. Business plan available for teams.

Dispute Hotel Bills, Medical Bills, and More

Hotel junk fees — resort fees, destination fees, amenity fees — are among the most common consumer complaints. Warnvo's Hotel Bill Analyzer flags every suspicious charge and generates a dispute letter you can hand to the front desk or send to the hotel's billing department. Medical bill errors affect 1 in 5 patients. Warnvo's Medical Bill Checker identifies upcoding, duplicate charges, and services never rendered.