PreBuy

Buying a used car? PreBuy helps you check the car before you negotiate — with a local-first workflow that keeps your notes, photos, VIN, and offer on your iPhone.

What you can do

• Research safety data. Look up NHTSA recalls and complaints for the vehicle’s year, make, and model, plus curated common-problem summaries for selected models.
• Scan OBD2 codes. Connect a compatible Bluetooth LE OBD2 adapter and read stored, pending, and permanent codes, readiness monitors, a small live-data snapshot, and the VIN reported by the vehicle. PreBuy is read-only: it never clears codes or changes vehicle settings.
• Inspect with evidence. Work through a 100-item checklist covering paperwork, exterior, glass, tires, brakes, engine bay, underbody, interior, safety systems, and a test drive. Mark Pass, Caution, Fail, or N/A, add notes, and attach photos from the library or camera.
• Turn findings into a repair range. Record parts and labor estimates, mark safety-critical items, and see a low/high repair range.
• Build an offer from your own comps. Enter 2–3 local comparable vehicles. PreBuy adjusts for mileage, condition, repairs, and a risk buffer, and shows the formula. It does not license a market-price database and does not pretend to know a guaranteed value.
• Prepare the conversation. Get seller questions, an offer worksheet with opening/target/walk-away numbers, an offer log, and a deal checklist.
• Export a PDF report. Share or print a buyer’s record with the vehicle, safety research, OBD results, inspection issues, repair worksheet, comps/offer, photos, sources, and limits.
• Compare and keep records. Compare up to three vehicles, save multiple vehicles, and export/import a local backup.