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View comparePlug it in. See it move. No tools. No monthly bill.
Plug it in
Find the OBD-II port under your dash and plug ShadowAuto in. No wiring, no tools, under 3 minutes.
Activate
Open the app and activate ShadowAuto. Your term is already added in from checkout, no second payment here.
Know
Watch your car move on a live map, and get an alert the moment it speeds, leaves a zone, or gets unplugged.
Features
Everything a prepaid GPS tracker should do. Nothing it shouldn't.
Grouped by the four questions owners ask us. Pick the one you are asking.
Pick a question
Watch it move now. Play back any day you missed.
Live Tracking
Your car or truck on a real-time map while it is moving, from your phone or any browser. It refreshes every 5 seconds, so the dot you see is where it actually is.
A Year of Trip History
Every trip kept for a full year, with driving time and idle time on each one. Pull up a Tuesday from eight months ago and it is still there.
Route Playback
Play any day back like a movie, stop by stop, at whatever speed you want.
You set the rules. Every alert lands in seconds.
Car Alarm
It moves when it shouldn't, or someone pulls the tracker out of the port, and you know right away. Push notification, text message, or email, whichever one you will actually see.
Geofence Zones
Draw a zone around home, school, or a job site. Get an alert the moment it enters or leaves.
Curfew Alerts
Set the hours it should be parked. If it starts moving at 1 a.m., you find out at 1 a.m., not at breakfast.
Driving Alerts
Harsh braking, hard acceleration, and speeding pinged as they happen.
How it is running, and how it is being driven.
Trip Score
Every trip comes back with a score built from the braking, acceleration, and speeding on that drive.
Engine Codes
When the check engine light comes on, your phone tells you what the code means before the shop does.
Battery Health
Watch the voltage trend so a dying battery shows up on your phone.
Fuel Level
See how much is in the tank without walking outside.
One dashboard for the family car and the work truck.
More Than One Vehicle
One car or twenty on the same dashboard, personal and business side by side.
Add People to the Account
Give your partner, a family member, or whoever runs your trucks their own login.
Share Live Location
Send a link so your shop, a friend, or a customer sees the same live map.
Download Reports
Pull trip and mileage reports for any date range, then download them for your records.
Easy to use
If you can use a map app on your phone, you can use this. No manual, no training.
Web and app
The same map and history on iOS, Android, and any browser. One login, nothing extra to pay for.
Always on
Your tracker switches between major networks on its own, so it keeps reporting when one carrier drops out.
Who it's for
Built for the car or truck you're responsible for.
Parents & teen drivers
Real-time location and speed alerts wherever your teen actually drives, not just near your phone. No monthly bill to manage.
Turo hosts & single-vehicle owners
Know where your car is and how it's being driven the moment it leaves your driveway, without a recurring monthly charge.
Small fleet & business
Prepay once per device instead of juggling a monthly bill across every vehicle. One dashboard for the whole fleet.
Coverage
Strong coverage, wherever you drive.
United States
Canada
Global roaming
Uptime
Plug it in, and see your vehicle update every five seconds. Cancel any time.
Goes Well With This
ShadowTrack
Battery powered, so it goes on a trailer, a boat, or anything without an OBD-II port.
$69.90 · about 15 days a chargeShadowTrack + magnetic case
Drop it in the weatherproof case and magnet it under a trailer or inside a wheel well.
$69.90 tracker + $15.95 caseHow a no-monthly-fee OBD GPS tracker works
ShadowAuto pairs a cellular chip and GPS receiver with your car's own OBD-II port, so it works anywhere it can reach a cellular signal, powered by the vehicle instead of a battery. Prepaying for a term instead of paying monthly is what removes the recurring bill, not a limit on range or features.
What "no monthly fee" actually means
A no-monthly-fee GPS tracker isn't free tracking forever. It's a tracker where you pay for service upfront, in ShadowAuto's case for 3, 12, or 36 months, instead of being billed every month. You get the same real-time location, alerts, and trip history for the term you prepay, with no recurring charge hitting your card during that time.
Setup, without a technician
Find the OBD-II port under your dash, plug ShadowAuto in, and activate it in the app. No tools, no wiring, done in under 3 minutes.
OBD-II vs. battery or Bluetooth-only trackers
An OBD-II tracker draws power directly from the vehicle, so there's no battery to charge, and its cellular chip reports real-time location nationwide, not just within reach of a paired phone the way a Bluetooth-only tag does.
Privacy and legal considerations
ShadowAuto is built for the car or truck you own or are responsible for, not for monitoring another adult without their knowledge. Tracking law varies by state and country, this isn't legal advice, check local law or an attorney if you're unsure.
ShadowAuto spec sheet, at a glance
A quick reference for how ShadowAuto compares on the details that come up most in reviews and support questions.
SpecDetailDevice typeOBD-II GPS tracker, plug-inBest forCars, trucks, Turo rentals, small fleetsConnectivityBuilt-in cellular, nationwide coveragePowerVehicle-powered, no battery to chargeRefresh rateAs often as every 5 seconds while movingPricing modelNo monthly fee, prepay 3, 12, or 36 monthsAdditional featuresGeofencing, speed alerts, unplug alerts, engine diagnostics
| Where you use it | How you get in |
|---|---|
| Desktop | Web dashboard in Chrome, Firefox, Safari, or Edge |
| Phone | ShadowGPS app on iOS or Android, or the dashboard in a mobile browser |
| Tablet | App or browser, same account, same live map |
| Connection | Every login and session runs over an encrypted connection |
Security features at a glance
- Car Alarm: an alert when your car moves and it shouldn't be moving.
- Tamper detection: an alert the moment the tracker is pulled from the port.
- Geofence zones: an alert when your car crosses a boundary you drew.
- Speed alerts: an alert when your car passes a speed you set.
- Encrypted data: location history is sent and stored over encrypted connections.
- Account access: your trip history sits behind your login, app or browser.

