OBD2 Scanner | OBD Auto Doctor vs OnTrack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OBD2 Scanner | OBD Auto Doctor
Diagnose your car's engine light issues and monitor real-time performance data. This app allows you to read and clear diagnostic trouble codes, track fuel consumption, and view sensor data. It's a comprehensive tool for understanding your vehicle's health.
- Read and clear OBD2 diagnostic trouble codes (DTC)
- Reset Check Engine Light
- Monitor real-time vehicle data and sensor readings
- Track fuel consumption
- Read readiness monitor status for emissions testing
- Initiate service routines
- Send diagnostic data via email
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Turn your iPhone into a powerful OBD2 car scanner and diagnose your vehicle yourself. Check why your Check Engine Light is on, read and clear diagnostic trouble codes, monitor live engine data, and check emissions readiness — all from your iPhone or iPad with a compatible OBD2 dongle. CHECK YOUR CHECK ENGINE LIGHT Don't guess what's wrong with your car. OBD Auto Doctor reads diagnostic trouble codes from your vehicle and provides detailed information to help you understand what they mean. • Read diagnostic trouble codes (DTCs) • Clear Check Engine Light codes • View detailed code descriptions • Read freeze-frame data MONITOR YOUR CAR IN REAL TIME See what's happening while your engine is running with live OBD2 data. • Engine RPM and vehicle speed • Coolant temperature • Fuel system and fuel trim data • Throttle position • Intake air and engine load • Oxygen sensor data • And many other vehicle parameters Create your own dashboard and choose exactly which sensors you want to monitor. CHECK EMISSIONS READINESS Preparing for an emissions or vehicle inspection? Check your vehicle's readiness monitors and see whether your car's emissions systems have completed their tests. WORKS WITH OBD2 DONGLES Connect OBD Auto Doctor to your vehicle using a compatible Bluetooth, Wi-Fi or Bluetooth Low Energy (BLE) OBD2 dongle. Compatible dongles include many ELM327-based adapters, OBDLink, Vgate, Linker, Veepeak and other compatible OBD2 interfaces. Please note: An OBD2 dongle is required to connect the app to your vehicle. Dongle compatibility and available features depend on your vehicle. MORE THAN JUST A CODE READER OBD Auto Doctor gives you access to the information your car's onboard diagnostic system makes available. • Read vehicle information • Monitor fuel consumption • View and record live sensor data • Read diagnostic trouble codes • Clear diagnostic trouble codes • Check emissions readiness • View freeze-frame data • Monitor vehicle performance Whether you're trying to understand a Check Engine Light, preparing your car for inspection, monitoring your engine, or simply want to know more about your vehicle, OBD Auto Doctor puts professional-style OBD2 diagnostics in your pocket. Download OBD Auto Doctor and start diagnosing your car today. SUBSCRIPTION OBD Auto Doctor offers optional subscriptions that unlock additional features. Terms of Use: https://www.obdautodoctor.com/terms
OnTrack
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Introducing Shift, an innovative app designed to make manual driving simpler and more efficient. By allowing you to set your desired RPM for gear changes, Shift provides a visual cue on your smartphone, making it easier than ever to know the perfect moment to shift gears. Ideal for both novice and experienced manual drivers, this app helps optimize your car's performance and fuel efficiency, while also making driving a more enjoyable experience. Features: Custom RPM Shift Point: You have the power to set the RPM at which you'd like to shift gears, tailoring the driving experience to your personal preference or to the specific demands of your vehicle. Bluetooth OBD Integration: Easily connect Shift to your car using a Bluetooth OBD II adapter, ensuring compatibility with a broad range of vehicles and a simple setup process. Intuitive Shift Light Display: Much like hardware Shift-Lights, but without the premium price. Quick and Easy Setup: Just connect the app to your car via the Bluetooth OBD II adapter, enter your preferred RPM shift point, and you're ready to go. How It Works: Pair your smartphone with your car through a Bluetooth OBD II adapter. Launch the Shift app and input your desired RPM for gear changes. Drive as usual and watch for the shift indicator on your phone for the perfect shift timing. Advantages: Improve your vehicle's performance and fuel efficiency. Customize your driving experience based on your skill level and car's capabilities. Compatibility: Compatible with most gasoline and diesel vehicles that have an OBD II port (1996 and newer). Requires the use of a Bluetooth 4 OBD II adapter (available separately). Get Shift now and take control of your driving experience. Set your RPM, see the shift, and feel the difference in your drive. Join the Shift community and redefine the way you engage with the road, one gear at a time. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
OBD2 Scanner | OBD Auto Doctor and OnTrack are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. OBD2 Scanner | OBD Auto Doctor sells 9 in-app purchases, starting at $4.99 per month and OnTrack sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
OBD2 Scanner | OBD Auto Doctor ships an update every 3 weeks, OnTrack every 2 weeks. The most recent releases landed on October 24, 2026 and October 9, 2026 respectively.
| Parameter | OBD2 Scanner | OBD Auto Doctor | OnTrack |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (6.2K ratings) — better | — |
| Positive reviews | 30.3% of reviews | — |
| Number of ratings | 6.2K — better | — |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, Apple Watch — better |
| Requires iOS | 17.0 — better | 17.2 |
| Further details — not scored | ||
| Size | 19 MB | 8 MB |
| Age rating | 4+ | +4 |
| Developer | Creosys | OnTrack Apps Limited |
Bugs and requests
OBD2 Scanner | OBD Auto Doctor
Reported bugs
4 issues- App crashes on launch
- Fails to detect existing fault codes
- Subscription issues and inability to cancel
- Incompatible with certain OBD2 adapters
Requested features
6 requests- Add support for more vehicle makes and models
- Improve Bluetooth/WiFi connectivity
- Provide more detailed diagnostic information
- Allow clearing of error codes without subscription
- Add live data dashboards and graphs
Show 1 moreShow fewer
- Integrate with vehicle maintenance scheduling
OnTrack
Not enough reviews yet to summarise bugs or requests.
In-app purchases
OBD2 Scanner | OBD Auto Doctor
- Monthly (legacy)$4.991 Month
- Personal, monthly$4.991 Month
- Premium, monthly$5.991 Month
Show 5 moreShow fewer
- Professional, monthly$6.991 Month
- Yearly (legacy)$23.991 Year
- Personal, yearly$23.991 Year
- Professional, yearly$29.991 Year
- Premium, annual3 Days trial$29.991 Year
- OBD Auto Doctor Pro (legacy)$29.99
OnTrack
- Monthly$1.991 Month
- Yearly - Best value7 Days trial$19.991 Year
Questions
Is OBD2 Scanner | OBD Auto Doctor free?
Is OnTrack free?
Do OBD2 Scanner | OBD Auto Doctor or OnTrack have ads?
Which is updated more often, OBD2 Scanner | OBD Auto Doctor or OnTrack?
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