Your car has 139 sensors.
Most apps show you eight.
ScanMyCar reads every live parameter your car's computer exposes, pulls every trouble code across every module, and lets an AI that can see all of it tell you — in plain English — what's wrong and how urgent it is.
Needs a cheap Bluetooth OBD-II adapter. No account, no signup.
Every trouble code, in plain English
A little amber light comes on and never tells you why. ScanMyCar reads stored, pending and permanent codes from every module — engine, transmission and the rest — and can clear them too.
- Stored, pending & permanent — across every module
- Read and clear, with the freeze-frame that set it
- Tap any code for a plain-English explanation
Tap a code to decode it
Catalyst System Efficiency Below Threshold (Bank 1)
The rear O2 sensor is shadowing the front one, so your catalytic converter isn't scrubbing the exhaust like it should. Often a tired converter — but a lazy downstream O2 sensor or a small exhaust leak can mimic it. Not an emergency; the car drives fine, but it won't pass an emissions test until it's sorted.
A live cockpit, built the way you want it
Watch the metrics that matter on needle, digital and bar gauges, updating in real time as you drive. And with Pro, fill each slot with any of the 139 parameters — keep it to the vitals, or load it up with fuel trims and catalyst temps when you're chasing something down.
- Needle, digital or bar — your call
- Metric or imperial, switched at the display
- Any of the 139 parameters per slot Pro
It reads everything the ECU will tell it
A typical OBD app surfaces the same eight gauges. ScanMyCar decodes 139 live parameters straight from the standard — short and long-term fuel trims on both banks, every oxygen sensor, catalyst temperatures, timing advance, EGR, evap, torque — the readings that actually localize a fault. And the AI can see every one of them at once.
- Live values, updating as you drive
- Tap any sensor to chart it across a drive
- Every drive logged on your phone — and CSV export for the shop Pro
An AI that has read your whole car
Ask a question, attach a photo of a part or a warning light, and get a specific reply grounded in your actual data — the codes it found, the live sensor values, even the freeze-frame saved when the fault set. It rates the urgency, too: drive normally, check soon, or stop.
- Sees every reading and every code at once
- Deep health check, system by system — and a ride analysis after every drive
- Attach a photo and chat back and forth
A knowledgeable assistant, not a mechanic. ScanMyCar explains what your car is reporting and points you in the right direction — it isn't a substitute for a professional diagnosis, and clearing a code should be done with an understanding of what set it.
Oil Temp warning: 131 degrees celsius
It warns you out loud, before you'd ever look down
You can't watch a gauge at 70 mph. So with ScanMyCar open in a mount, a reading that crosses a dangerous line — oil temperature too high, coolant climbing toward overheat, voltage dropping — gets said out loud, using thresholds from the standard plus any you set yourself. Your eyes never leave the road.
The scanner is free. Pro adds the part that thinks.
Every gauge, sensor, code and drive log is free forever — no trial clock, no feature meter. ScanMyCar Pro adds the AI mechanic and a set of power tools on top.
The scanner
- Live dashboard with needle, digital & bar gauges
- All 139 sensors, charted and logged on-device
- Read & clear codes — stored, pending, permanent
- Freeze frame & readiness monitors
- Trip computer & spoken alerts on every drive
$0 — and it stays that way
The AI mechanic
- Chat grounded in your codes, sensors & drive history
- Deep health check, system by system
- Ride analysis after every drive
- Healthy ranges tailored to your exact engine
- Plus HUD mode, 0–60 timers, Mode 06 deep tests, custom dashboard slots & CSV export
$4.99/month·$39.99/year
Through the App Store — auto-renews until canceled, Family Sharing included, no account needed.
Your car's data stays on your phone
There's no account and no cloud. Every reading, code, trip and chat lives in a database on your device. Delete the app and it's all gone.
- No sign-up, no login, nothing stored on a server.
- No ads, no trackers, no analytics SDKs.
- No location: speed and distance come from the car, not GPS.
- AI features send data to Google Gemini only when you use them.
Now on the App Store
Grab a cheap Bluetooth OBD-II adapter, plug it in under the dash, and ScanMyCar does the rest — no account, no signup.
Questions, bugs, or a car it won't talk to? Write directly: serene.aryal24@gmail.com