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    First tracker 30% off, auto-applied at checkout

    See every truck live, every 5 seconds

    Know your teen made it home safe

    Plugs in under 3 minutes, no tools

    No contracts. Cancel anytime.

    Ships today if ordered by 2 PM EST

    First tracker 30% off, auto-applied at checkout

    See every truck live, every 5 seconds

    Know your teen made it home safe

    Plugs in under 3 minutes, no tools

    No contracts. Cancel anytime.

    Ships today if ordered by 2 PM EST

    👋 Step into Style !

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    ShadowAuto - OBD-II GPS Tracker - With Prepaid Subscription ShadowAuto - OBD-II GPS Tracker - With Prepaid Subscription

    Plug into any car's OBD-II port. Track in real-time. No tools, no wiring, under 3 minutes.

    Pay once upfront and you're covered for your full term, not billed again until you say so.

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    ShadowAuto - OBD-II GPS Tracker - With Prepaid Subscription

    ShadowAuto - OBD-II GPS Tracker - With Prepaid Subscription

    Plug into any car's OBD-II port. Track in real-time. No tools, no wiring, under 3 minutes.

    Pay once upfront and you're covered for your full term, not billed again until you say so.

    99 in stock

    Regular price $108.90
    Sale price $108.90 Regular price $138.90
    SAVE 21%

    ShadowAuto pairs a one-time device cost with a simple monthly subscription for live tracking, alerts, and trip history.

    Subscription pricing:

    • $12/month per device
    • $10/month per device when you track 4 or more vehicles

    Prepay for 3, 12, or 36 months upfront and lock in savings: no contracts, cancel anytime.

    • No monthly bill. Pay once upfront for your full term.
    • Plug into any car's OBD-II port. No tools, no wiring.
    • Engine diagnostics and check-engine codes, right in the app.
    • Real-time location updates as often as every 5 seconds, nationwide.
    • 1 year of trip history, speed alerts, and geofencing.
    • Vehicle-powered. Nothing to charge, ever.
    Need four or more devices? See volume pricing →

    Request a Quote

    30-day money-back guarantee
    USA-based company
    Free phone support
    Free USPS shipping
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    • Apple Pay
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    • Discover
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    • PayPal
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    View full details
    How it works

    Plug it in. See it move. No tools. No monthly bill.

    1

    Plug it in

    Find the OBD-II port under your dash and plug ShadowAuto in. No wiring, no tools, under 3 minutes.

    2

    Activate

    Open the app and activate ShadowAuto. Your term is already added in from checkout, no second payment here.

    3

    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

    ShadowGPS app showing GPS tracking

    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.

    ShadowGPS app showing GPS tracking

    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.

    ShadowGPS app showing GPS tracking

    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.

    ShadowGPS app showing GPS tracking

    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.

    Your tracker changes carriers on its own, so a weak signal on one network does not mean a blank map.

    United States

    Multi-carrier LTE-M

    Canada

    Rogers, Telus, Bell

    Global roaming

    188 countries

    Uptime

    99.9% of the time, reporting
    Pricing

    Buy the device once. Track through your term

    Hardware is a one-time purchase. When your term ends, choose how you'd like to continue:

    How Many Vehicles?
    1-3
    4-10
    11+
    USD CAD

    Quarterly

    Billed every 3 months

    $13 / USD
    • Updates every 5 seconds
    • Real-time location & trip history
    • Speed, geofence & curfew alerts
    • Vehicle diagnostics & multi-user access

    Monthly

    Flexible, no commitment

    $15 / USD
    • Updates every 5 seconds
    • Real-time location & trip history
    • Speed, geofence & curfew alerts
    • Vehicle diagnostics & multi-user access

    Plug it in, and see your vehicle update every five seconds. Cancel any time.

    Goes Well With This

    ShadowAuto

    ShadowAuto

    ShadowAuto, same 5-second refresh. Pay for month to month.

    $69.90 - no contract, ever
    ShadowTrack

    ShadowTrack

    Battery powered, so it goes on a trailer, a boat, or anything without an OBD-II port.

    $69.90 · about 15 days a charge
    ShadowTrack + magnetic case

    ShadowTrack + magnetic case

    Drop it in the weatherproof case and magnet it under a trailer or inside a wheel well.

    $69.90 tracker + $15.95 case
    Learn

    How 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.
    Common questions

    Is there a GPS tracker with no monthly fee?

    Yes. Prepaid cellular trackers like ShadowAuto let you pay for 3, 12, or 36 months of service upfront so there's no monthly bill during that term.

    How does a no-monthly-fee GPS tracker work?

    It plugs into your car, commonly the OBD-II port, and uses a built-in cellular SIM, prepaid for a set term, to send real-time location and alerts to an app, with no recurring monthly charge during that period.

    What happens after the prepaid term ends?

    We send a renewal reminder before it expires. You can prepay another term, often at a better rate the longer you choose, or switch to month-to-month. You're never auto-charged without notice.

    Is an OBD GPS tracker better than a Bluetooth or plug-in tracker?

    For most vehicles, yes. OBD-II is a standardized port present in virtually every car sold after 1996, draws vehicle power without extra wiring, and unlocks engine diagnostics a Bluetooth or cigarette-lighter tracker can't read.

    Can I track my car without a subscription?

    You can avoid a monthly subscription with a prepaid tracker like ShadowAuto, or avoid any ongoing cost with a Bluetooth/Find My tracker, though that option only works within a limited range of a paired device.

    FAQ

    Does ShadowAuto prepaid have a monthly fee?

    No. You prepay once for 3, 12, or 36 months of service, so there's no recurring monthly charge during that term.

    What happens when my prepaid term ends?

    We'll send a renewal reminder before it expires. Prepay another term, usually at a better rate the longer you choose, or switch to month-to-month. You won't be charged automatically without notice.

    Is this the same as a Bluetooth or Find My tracker?

    No. ShadowAuto prepaid uses built-in cellular service, so it tracks your car anywhere there's signal, not just within a short range of your phone.

    Is setup difficult?

    No. Find your car's OBD-II port under the dash, plug it in, activate it in the app. No tools, no wiring, under 3 minutes.

    How fast does it update?

    Every 5 seconds while your car is moving, on every plan. There is no faster tier to buy.

    Does it need a battery?

    No. ShadowAuto prepaid is powered by your vehicle through the OBD-II port, so there's nothing to charge or replace.

    Will it work with my car?

    ShadowAuto works with any vehicle that has an OBD-II port, which includes most cars sold after 1996.

    Can I track more than one car?

    Yes. Add as many trackers as you need to one dashboard, and invite other people to view them.

    Does it drain my car's battery?

    No. It draws a small amount of power through the OBD-II port, which is also why there is nothing to charge.

    How do I get alerts?

    Push notification, text message, or email, your choice. Set them for ignition, tampering, speeding, and zone entry or exit.

    Can someone tell it's there?

    Yes, and that is normal for an OBD-II tracker. It sits in a port in plain view and reports the moment someone touches it.

    Do I need a shop to put it in?

    No. No technician, no appointment, and nothing routed behind the dash.

    How do I get alerts?

    Push notification, text message, or email, your choice. Set them for speed, geofence zones, and unplugging.

    Will it work outside the US?

    Yes. ShadowAuto works across the US and Canada, with roaming available in many countries, switching networks on its own.

    What happens if I want to cancel?

    Tracking runs to the end of the term you already paid for, then stops unless you renew. No cancellation fee and no phone call required.

    What drivers say

    Plug it in, and see your vehicle update every five seconds. Cancel any time.

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