Now available · iOS & Android

The truth
about your
car.

AI diagnosis in seconds. Instant estimate review. Mechanics ranked by real price fairness — not ads.

Free to start
No ads. Ever.
Your data is never sold
AI-powered by Claude
🤖
FAX
ONLINE
🤖
Hey Marcus! What's going on with your F-150 today?
grinding sound when i brake, started last week
🤖
That grinding on braking is serious — likely metal-on-metal. Want me to run a full photo diagnosis? Snap the wheel area.
Ask Fax anything…
Diagnosis Report
3 ISSUES
⚠️
Safety: Avoid highway driving.
Worn front brake pads — metal-on-metal
FIX NOW
CONFIDENCE91%
EST. REPAIR
$220–$380
Caliper slide pin seized
SOON
CONFIDENCE44%
EST. REPAIR
$80–$160
🚨
OVERPRICED
Austin's Auto · 82% confidence
QUOTED
$487
EXPECTED
$330
SAVE
$157
LINE ITEMS
Brake pads (OEM)
Expected $60–90
$189
OVERPRICED
Labor — brake job
Expected $200–260
$237
FAIR
GET 2ND OPINION
SHARE
85%+
Diagnosis accuracy with photos
$157
Average savings on overpriced estimates
Free
3 diagnoses per day to start
How it works

Know before
you go in.

Three tools that give you the same information your mechanic has — before they write up the bill.

01
📸

Photo AI Diagnosis

Take a photo of any car problem — warning light, noise, damage, or engine bay. Fax analyzes it against known failure patterns for your exact vehicle. Results in under 30 seconds with severity, confidence, and cost ranges.

02
📋

Estimate Review

Upload any mechanic's quote. ShopFax compares every line item against Mitchell1 labor benchmarks and real parts pricing. You instantly see if it's Fair, Questionable, or Overpriced — with the specific dollar amount you could save.

03
🔧

Verified Mechanic Scores

Every shop gets a Price Fairness Score built from real, verified invoices submitted by ShopFax users. Not stars — actual data on what they charge vs what's fair. Find the honest shops before you walk in.

!
⚖️

AI-assisted, not AI-diagnosed

ShopFax gives you the same information your mechanic has — so you can ask better questions and spot overcharges. A qualified mechanic must physically inspect your vehicle before any repair.

Everything included

One app.
Full picture.

🔬

AI Photo Diagnosis

Photograph any issue. Get ranked causes with confidence percentages, severity levels, fix urgency, and estimated repair costs — specific to your vehicle.

💰

Estimate Review

Upload any estimate. Every line item gets compared to industry benchmarks. See exactly which parts are marked up and how much you could negotiate.

🗺️

Mechanic Marketplace

Find nearby shops ranked by Price Fairness Score, not paid placement. Every score is calculated from verified invoices — real data, not star ratings.

🚗

My Garage

Add all your vehicles with a VIN scan. Track every diagnosis, estimate, and repair in one place. Your full history — invaluable at resale time.

📂

Document Vault

Store estimates, invoices, receipts, and warranties by vehicle. Everything organized, always accessible — for insurance, warranty disputes, and resale.

🤖

Ask Fax

Describe any car problem in plain English. Fax asks follow-up questions, references your vehicle history, and tells you exactly what to watch for.

🔒
Your data is never sold
🚫
Zero ads, ever
🤖
Powered by Claude AI
📊
Real invoice data, not guesses
🛡️
Delete your account anytime
Pricing

Start free.
Upgrade when it pays for itself.

Start free. Upgrade when you need more. Commercial users contact us for custom pricing.

Free
$0
forever
  • 3 AI diagnoses per day
  • Estimate review & line-item analysis
  • Mechanic map with fairness scores
  • VIN scanner & garage management
  • Document vault
  • 10 diagnoses/day
  • Priority AI processing
  • Advanced repair analytics
  • Export vehicle history
Download Free
Enthusiast
$19.99
per month · cancel anytime
  • 50 AI diagnoses per day
  • Estimate review & line-item analysis
  • Mechanic map with fairness scores
  • VIN scanner & garage management
  • Document vault
  • Priority AI processing
  • Advanced repair analytics
  • Export full vehicle history (PDF)
  • Up to 5 vehicles
Get Enthusiast
Commercial & Fleet
Shops, dealers, and fleets doing more than 50 diagnoses/day — contact us for custom pricing.
Contact Us →
Questions

Answered.

No. ShopFax helps you understand what might be wrong and whether a quote is fair — it gives you the same information your mechanic has so you can ask the right questions. A qualified mechanic must physically inspect your vehicle before any repair. We say this clearly in every diagnosis result.
With clear photos and a detailed description, ShopFax achieves 85–92% accuracy for identifying the most likely issue. Every diagnosis shows a confidence percentage so you always know how certain the analysis is. The more photos and detail you provide, the better.
From three sources: Mitchell1 labor time guides (the industry standard used by professional shops), real parts pricing from AutoZone, RockAuto, and dealers, and anonymized invoices submitted by ShopFax users for verified repairs. Estimates reflect US national averages for independent shops.
Yes. Your vehicle data, photos, and diagnoses are private to your account. Community pricing data is only shared with your explicit opt-in, and is fully anonymized — your name, email, and VIN are never included. We do not sell data to advertisers or third parties. You can export or delete everything from Settings at any time.
Every shop's score is calculated from real verified invoices submitted by ShopFax users for that specific shop. We compare what users actually paid against the expected range for the same repair type in the same city. A 95% score means the shop consistently charges at or below market rates — based on real invoices, not reviews.
Any US-registered vehicle with a valid 17-character VIN. This includes cars, trucks, SUVs, and most motorcycles made from 1981 onwards. VIN decoding uses the free NHTSA government database for instant vehicle identification.

Stop guessing.
Start knowing.

Free to download. Free to start. One overpriced estimate caught pays for itself.