Warnvo.
Sign InCreate Account
How It WorksWhy Warnvo
PricingFAQ
FTCCompliant
CFPBAligned
FDCPAProtected
Get Started Free →

FOR TRAVELERS

Every country. Every currency.
Every scam caught.

ShieldEngine™ analyzes hotel bills, restaurant receipts, and tour invoices in 95+ languages. It catches dynamic currency conversion scams, undisclosed resort fees, and double-gratuity charges — anywhere in the world.

Not sure? Start with Sunny — she'll match you to the right travel specialist.

$24.99/month — less than the cost of one disputed hotel fee.

WORKS ANYWHERE IN THE WORLD

Handed a bill in another language?
Snap a photo.

ShieldEngine™ reads it, translates it, converts the currency, and tells you if you're being overcharged — before you pay. Works on restaurant menus, hotel folios, currency exchange receipts, taxi bills, and airline invoices. In 95+ languages.

Scan any bill in any language

Live currency conversion on every line item

Flags illegal surcharges and fake fees

Dispute letters in the original language of the bill — hand it to the front desk on the spot

Scan a foreign bill free →

YOUR TRAVEL SPECIALISTS

Meet the specialists who know every travel trick in the book.

Every ShieldEngine™ specialist knows the laws, the billing patterns, and the exact language to use in your dispute.

TRAVEL & DINING

Agent Marco

"That resort fee? That auto-gratuity? I've seen every trick — and I know how to fight them."

SCAM DETECTION

Agent Jordan

"If it looks wrong, sounds urgent, or asks for payment — send it to me first."
See all 20+ ShieldEngine™ specialists →

TRAVELER PLAN

$24.99/month

Simple monthly billing. Cancel anytime. No per-scan charges.

Everything in the Free plan
Hotel & restaurant bill analysis
Dynamic Currency Conversion detection
95+ language document processing
Tour & activity invoice review
Dispute filings with Regulation Z citations
International scam detection
Unlimited scans while traveling
Marco, Jordan + travel specialists included
Get Traveler Plan →

WHAT IT CATCHES

Built for every scam travelers face.

95+ Languages — Any Country

ShieldEngine™ reads bills written in 95+ languages. Hand it a hotel folio from Tokyo, a restaurant receipt from Rome, or a tour invoice from Mexico City — it processes the document, translates the charges internally, and flags anything that doesn't add up.

Dynamic Currency Conversion Detection

DCC is a common scam where a merchant or ATM offers to charge you in your home currency at an exchange rate they control — almost always worse than your bank's rate. ShieldEngine™ detects when this has happened and flags the overcharge so you can dispute it before you leave.

Hotel Checkout Analysis

Hotels routinely add resort fees, destination fees, amenity fees, and early checkout penalties that were never clearly disclosed at booking. ShieldEngine™ scans the itemized folio and flags every charge that wasn't properly disclosed.

Restaurant Bill Review

Restaurants in tourist areas sometimes add service charges, cover charges, or gratuity on top of gratuity. ShieldEngine™ scans the itemized bill and flags anything added without proper notice.

Dispute Filings for International Trips

Even when traveling internationally, many consumer protections still apply — especially if you booked through a U.S.-based platform or paid with a U.S. credit card. ShieldEngine™ generates dispute filings citing FTC mandatory disclosure rules, Regulation Z chargeback rights, or state consumer protection statutes.

Tour & Activity Invoice Review

Tour operators frequently add undisclosed fees, change itineraries without refunds, or charge for services not rendered. ShieldEngine™ reviews the invoice against what was promised and flags every discrepancy.

REAL SCENARIOS

How travelers use ShieldEngine™.

Hotel checkout surprise

Problem: A $40/night resort fee wasn't mentioned during booking.

ShieldEngine™ flags the undisclosed fee and generates a dispute filing citing FTC mandatory disclosure rules.

ATM currency scam

Problem: An ATM in Europe offered to charge in USD at a rate 8% worse than your bank.

ShieldEngine™ identifies the DCC overcharge on your statement and drafts a chargeback request citing Regulation Z.

Restaurant double-gratuity

Problem: A tourist-area restaurant added 18% service charge plus a separate 15% gratuity line.

ShieldEngine™ flags the duplicate charge and identifies which line was added without disclosure.

Tour operator fee dispute

Problem: A tour company charged a 'fuel surcharge' not mentioned in the booking confirmation.

ShieldEngine™ compares the invoice to the booking terms and generates a dispute filing for the undisclosed charge.

What is Dynamic Currency Conversion?

When you pay with a foreign card abroad, merchants and ATMs often offer to charge you in your home currency instead of the local one. This is called Dynamic Currency Conversion (DCC). The exchange rate they use is almost always 3–8% worse than your bank's rate — and the merchant keeps the difference. ShieldEngine™ detects DCC charges on your bill and flags the overcharge so you can dispute it with your card issuer.

Always choose to pay in local currency. ShieldEngine™ will tell you if you were charged in your home currency without consent.

FAQ

Common questions.

Travel smarter. Pay only what you owe.

ShieldEngine™ is built on FTC rulings and consumer law — not a chatbot. One flat monthly fee covers every trip, every country, every bill.

Not a law firm. Results are informational only. Not legal advice.