Expert-crafted, AI-assisted due diligence

Never buy a lemon.

An expert-built, AI-assisted inspection before you buy a used car or motorcycle. What to check, what to ask the seller, and how much to negotiate — in 30 seconds.

Read the guides

First inspection free · no card

How it works

From the listing details to an actionable report, before you pay anything.

1
Pick what you’re buying
Car or motorcycle. Enter the basics: make, model, year, mileage, price, location.
2
Get your report
In about 30 seconds you get an inspection built for THAT exact model — not a generic checklist.
3
Inspect on the spot
Check each point off or flag it, add notes, snap mental photos. Everything saves to your account.
4
Negotiate with facts
Walk in knowing what to look for, what to ask, and how much to knock off the asking price.

What you can inspect

A due diligence tool for your highest-value second-hand purchases.

🚗
Cars & trucks
Known issues by model and year, open recalls, what to check under the hood, and the paperwork to demand.
🏍️
Motorcycles
Model-specific weak points, real wear vs. the odometer, and signs of hard use.
🏠
HomesComing soon
Property due diligence tailored to the US market. On the way.
⛵
BoatsComing soon
Hull, engine and title inspection for used boats. On the way.

Why it isn’t just another checklist

Specific, not generic
It won’t tell you to “check the brakes.” It gives you the concrete problems of your exact model and year.
Built on real model data
The report knows the documented weak points and recalls for that car — so it reads like a mechanic who knows it, not a web checklist.
Actionable during the visit
An interactive checklist you tick off on the spot and that saves — not a PDF you read once and forget.
Honest about its limits
If a model is rare and there are no reliable comparables, it tells you — instead of inventing a price.

Honest pricing

A defect you miss costs thousands. The report costs cents.

First inspection
Free
no card
Try the full report on whatever you’re looking at right now.
Packs
$9.99
one-time
5 vehicle inspections. No subscription.
Pro / Dealer
$50
per month
Unlimited inspections, for dealers, flippers and investors.

Frequently asked questions

Does this replace a professional inspection?
No. LemonProof is your expert in your pocket before you decide: it tells you what to check, what to ask, and what it’s worth, so you arrive informed. When the purchase justifies it, it complements a professional pre-purchase inspection — it doesn’t replace one.
How is the report so specific?
It’s built on the documented issues and recalls for each model and year, so it isn’t a generic internet checklist. You get the weak points that actually matter for the exact car you’re looking at.
What languages is it in?
The report is generated in 7 languages: English, Spanish, French, German, Italian, Portuguese and Dutch.
What does it cost and how do I pay?
The first inspection is free. After that, one-time packs of $9.99 (no subscription) or a Pro plan at $50/month with unlimited inspections for professionals.
What can I inspect?
Cars, trucks and motorcycles today. Property and boats are on the way.

Walk in knowing exactly what to look at.