VIN missing
Recall accuracy is limited.
Used car red flags in minutes
Don't buy a lemon.
Paste the listing. Know the risk. LemonGuard helps used-car buyers spot missing details, suspicious seller claims, known model-year problems, recall context, and the questions to ask before they drive across town or hand over cash.
Built for buyers. Not dealers. Free summary first Full reports unlock in the app
Elevated risk Medium confidence
Proceed carefully.
This car needs service records, a cold start, and an independent inspection before you negotiate.
Top red flags
Service history unclear
Ask for records before test driving.
Inspection refusal
Walk away if they dodge it.
Ask this before you drive
"Can you send the VIN and recent maintenance records before I schedule a test drive?"
SoundCheck ready
Record knocks, ticks, squeals, or rattles.
How it works
Buyer defense before you text the seller.
Start with whatever you have: a public listing, screenshots, a VIN, manual details, or a weird sound.
Paste a listing
Drop in a public used-car listing URL and LemonGuard pulls out the details that matter.
Upload screenshots
Protected listing? Screenshots still work when the site blocks automated reading.
Review the risk
See red flags, missing info, known issues, recall context, and complaint patterns.
Ask better questions
Get seller questions, test-drive checks, and walk-away conditions before you spend time.
Report preview
Turn vague listings into concrete risk.
LemonGuard translates listing gaps into plain-English red flags, seller questions, inspection priorities, and walk-away conditions.
Full report preview
72 Elevated risk
A plain-English risk report turns listing gaps into questions, inspection priorities, and walk-away conditions.
VIN missing
Recall and title-context checks are limited until the seller provides it.
Known model-year issues
Research common failures before the test drive, not after the deposit.
Walk-away condition
If they refuse an independent inspection, the answer is no.
SoundCheck
Record the noise before you talk yourself into it.
Capture knocks, ticks, squeals, grinding, or rattles during a test drive. LemonGuard turns the recording into likely sound patterns and buyer actions.
SoundCheck identifies probable sound patterns. It is not a mechanical diagnosis.
Cold StartIdleAccelerationBrakingTurning
Ask for oil change records and have a mechanic check oil pressure before purchase.
Compare cars
When every listing says clean, compare the risk.
Saved reports make it easier to compare the cars you are actually considering, side by side.
2018 Camry SE
38Risk score
2016 Accord EX
61Risk score
2017 Altima SV
82Risk score
Lowest risk2018 Camry SE
Most missing info2016 Accord EX
Walk-away candidate2017 Altima SV
Unlock shape
Free summary first. Full reports unlock in the app.
Start with a fast triage summary, then unlock the complete report with seller questions, known issue research, recall context, negotiation points, SoundCheck, photo checklist, and PDF export.
Single report Monthly unlimited Annual unlimited
Trust and boundaries
Sharp advice. Clear limits.
LemonGuard should help you ask harder questions, not pretend a phone can inspect a car.
No account required to start
A buyer should be able to check a car before handing over personal details.
Built for buyers
LemonGuard is designed around skeptical buyers, not dealer inventory workflows.
Uses available evidence
Reports use public records and user-provided listing context, screenshots, photos, and recordings.
Still get an inspection
LemonGuard helps you triage risk. It does not replace a qualified mechanic.
Launch coming soon
Know what to ask before you buy.
The public app launch is being prepared. The legal, support, privacy, and ads infrastructure pages are in place for app review and launch operations.