Comparison

OBD2 Scanner | OBD Auto Doctor vs Mini OBDII

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

OBD2 Scanner | OBD Auto Doctor

Transform your iPhone into a car diagnostic tool. Read and clear engine trouble codes, monitor live engine data, and check emissions readiness with a compatible OBD2 dongle.

Highlights
  • Read and clear diagnostic trouble codes (DTCs)
  • Monitor live engine data
  • Check emissions readiness
  • View freeze-frame data
  • Create custom sensor dashboards
  • Works with compatible OBD2 dongles
Read full description

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

About

Mini OBDII

This app connects to your vehicle via Bluetooth or WiFi to perform diagnostics and monitor driving. It reads and clears fault codes, analyzes performance, and tracks your travel data. Supports multiple languages and high-speed data transmission.

Highlights
  • Fault code reading and clearing
  • Instrument panel monitoring
  • Performance testing
  • Travel analysis
  • High-speed data transmission
  • Multi-language support
Features
Read full description

Mini OBDII is a car diagnostic and monitoring application,support English,Español,Русский,Deutsch,Français,日本語,中文. Through iPhone and iPad, use Bluetooth/WiFi to communicate with the vehicle terminal to complete fault diagnosis and driving assistance functions. It has automobile detection and analysis functions such as fault code reading and clearing, instrument panel, performance test, and travel analysis. It also supports high-speed data transmission and has the advantages of low power consumption and ultra-power saving. caution: 1. Support the adapter that runs through WiFi and Bluetooth 4.0. 2. The parameters supported by each vehicle are different, which has nothing to do with Mini OBDII, but is related to the vehicle control unit.

Screenshots

OBD2 Scanner | OBD Auto Doctor4 screens
Mini OBDII4 screens

Verdict

The call

The clearest difference is rating: OBD2 Scanner | OBD Auto Doctor at 4.4 against Mini OBDII's 3.7. OBD2 Scanner | OBD Auto Doctor also leads on ratings volume (6.2K vs 10). Mini OBDII's advantage is in-app purchases (none vs 9) and iOS requirement (11 vs 17.0). On price, review sentiment, update cadence and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. OBD2 Scanner | OBD Auto Doctor sells 9 in-app purchases, starting at $4.99 per month. Mini OBDII asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

OBD2 Scanner | OBD Auto Doctor holds the better App Store score, 4.4 against 3.7. That said, the two scores are not equally well evidenced: OBD2 Scanner | OBD Auto Doctor has 6.2K ratings behind it against 10, so its average is the more settled of the two. Written reviews complicate that: 30% of OBD2 Scanner | OBD Auto Doctor's written reviews are positive against 38% of Mini OBDII's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 11, 2026 and November 3, 2026 respectively.

Scorecard5 real differences · 5 level
OBD2 Scanner | OBD Auto Doctor versus Mini OBDII: the parameters behind the verdict, then further details
ParameterOBD2 Scanner | OBD Auto DoctorMini OBDII
PriceFreeFree
Rating4.4 (6.2K ratings) — better3.7 (10 ratings)
Positive reviews30.4% of reviews37.5% of reviews — better
Number of ratings6.2K — better10
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.011 — better
Further details — not scored
Size19 MB33 MB
Age rating4+4+
DeveloperCreosysShenzhen Chaoyue Technology Development Co.,Ltd

Customer experience

OBD2 Scanner | OBD Auto Doctor

All ratings6,230 ratings
Positive84.4%
Neutral4.1%
Negative11.4%
Written reviews578 reviews
Positive30.4%
Neutral8.3%
Negative61.2%

Mini OBDII

All ratings5 ratings
Positive60.0%
Neutral0.0%
Negative40.0%
Written reviews8 reviews
Positive37.5%
Neutral12.5%
Negative50.0%

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 more
  • Integrate with vehicle maintenance scheduling

Mini OBDII

Not enough reviews yet to summarise bugs or requests.

In-app purchases

9 purchases

OBD2 Scanner | OBD Auto Doctor

Subscriptions8
  • Monthly (legacy)$4.991 Month
  • Personal, monthly$4.991 Month
  • Premium, monthly$5.991 Month
Show 5 more
  • 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
One-time1
  • OBD Auto Doctor Pro (legacy)$29.99
None

Mini OBDII

No in-app purchases

Questions

Is OBD2 Scanner | OBD Auto Doctor free?
OBD2 Scanner | OBD Auto Doctor is free to download, with in-app purchases available.
Is Mini OBDII free?
Mini OBDII is free to download, with no in-app purchases.
Which has better reviews, OBD2 Scanner | OBD Auto Doctor or Mini OBDII?
OBD2 Scanner | OBD Auto Doctor is rated higher. OBD2 Scanner | OBD Auto Doctor averages 4.4 out of 5 from 6.2K ratings, while Mini OBDII averages 3.7 from 10 ratings.
Do OBD2 Scanner | OBD Auto Doctor or Mini OBDII have ads?
Neither OBD2 Scanner | OBD Auto Doctor nor Mini OBDII shows ads.
Which is updated more often, OBD2 Scanner | OBD Auto Doctor or Mini OBDII?
OBD2 Scanner | OBD Auto Doctor ships an update every 3 weeks, and Mini OBDII every 3 weeks. Most recently, OBD2 Scanner | OBD Auto Doctor was updated on November 11, 2026 and Mini OBDII on November 3, 2026.

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