Comparison

YMOBD vs OBD2 Car Scanner

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

Head to head
About

YMOBD

This tool connects to your car's OBD adapter via Bluetooth to collect real-time engine data, read fault codes, and provide solutions. It also records driving data, analyzes performance, and offers a HUD display for a safer and more enjoyable driving experience.

Highlights
  • Real-time engine data collection
  • Vehicle fault code reading and solutions
  • Driving data recording and analysis
  • Vehicle performance testing (acceleration, braking)
  • HUD display function
  • Day and night modes
Features
Read full description

YMOBD is a practical too. It has the characteristics of simple operation and accurate data, and is suitable for long-term use by car owners and users. Keep your car away from hidden dangers and make driving fun! Connect and communicate with the OBD adapter via Bluetooth: It can collect car engine data in real time, such as engine speed, ignition time, then correction, water temperature, fuel consumption, etc., with two modes of day and night, with HUD display function. It can read vehicle fault codes and provide professional solutions for detected vehicle fault codes. The driving process of the vehicle can be recorded every time. Analyze and summarize data such as mileage, average fuel consumption, driving time, and driving speed. It can test the acceleration, braking, and other performance of the vehicle, and provide analysis reports.

About

OBD2 Car Scanner

Diagnose your car's engine and transmission with real-time data, customizable dashboards, and emissions readiness checks. This app connects to your vehicle's OBD2 system via Wi-Fi or Bluetooth for comprehensive maintenance and performance insights.

Highlights
  • Comprehensive diagnostics
  • Customizable dashboard
  • Real-time monitoring
  • Emissions readiness check
  • ECU self-monitoring test
  • HUD mode
Features
Read full description

OBD2 Car Scanner is designed to provide comprehensive diagnostics, real-time data monitoring, and maintenance guidance for your vehicle. It connects to your car’s OBD2 engine management system via Wi-Fi or Bluetooth, offering seamless integration with a range of compatible devices such as ELM327 adapters, Veepeak scanners, and more. OBD2 Car Scanner is the key to unlocking a world of benefits for your vehicle’s maintenance and performance. See how our app can revolutionize your driving experience: Comprehensive Diagnostics: Instantly access detailed information about your car’s engine and transmission, allowing you to quickly troubleshoot any issues and ensure optimal performance. Customizable Dashboard: Personalize your dashboard with custom gauges and graphs, providing you with the data that matters most to you at a glance. Real-Time Monitoring: Stay informed about your vehicle’s health with real-time data from sensors, allowing you to address potential issues before they become serious. Emissions Readiness: Easily determine if your vehicle is ready for emissions testing, saving you time and hassle during inspections. ECU Self-Monitoring Test: Utilize advanced diagnostics to perform self-monitoring tests on your vehicle’s ECU, allowing you to troubleshoot and resolve issues with confidence. Wide Compatibility: Enjoy seamless compatibility with a wide range of vehicles manufactured after 1996, ensuring you can use our app with confidence regardless of your car’s make or model. HUD Mode: Experience unparalleled convenience with our HUD mode, which allows you to project vital data directly onto your windshield for effortless monitoring while you drive. With OBD2 Car Scanner, you’ll have all the tools you need to take control of your vehicle’s maintenance and performance, saving you time, money, and frustration in the long run. Unlock your car’s full potential today! OBD2 Car Scanner is an application that allows car owners to read and diagnose their vehicle’s internal systems using the OBD 2 (On-Board Diagnostic) system. The app is compatible with a variety of OBD 2 scanners, including FixD OBD, Bluedriver OBD, Torque OBD, Torque Pro, Veepeak OBD, ELM 327, OBD Doctor, OBD Fusion, and Carly OBD. And all car brands: Citroën, Jaguar, Aston Martin, Hyundai, Bugatti, Kia, Maserati, Bentley, Subaru, Renault, Lamborghini, Mitsubishi, Porsche, Chevrolet, Fiat, Volvo, Mini, GMC, Smart, Tesla, Honda, Audi, Ford, Land Rover, Peugeot, Buick, Lexus, Alfa Romeo, Infiniti, Rolls-Royce, Skoda, Mazda, Volkswagen, Nissan, Jeep, McLaren, BMW, Mercedes-Benz, Toyota, Acura, Suzuki, Chrysler, Opel, Lotus, Daihatsu, Pagani, Seat, SsangYong, Lancia, Dacia, MG, Maybach, Ram, Hummer, Genesis, Alpine, Aston Martin, .. and many more You can upgrade to Premium with a one-time payment or purchase subscription options: - a monthly subscription (which comes with a 3-day free trial). - a weekly subscription – Payment will be charged to iTunes Account at confirmation of purchase. – Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. – Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. – Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. – Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Privacy Policy: https://digitalcarkeyllc.com/privacy-policy Terms of Service: https://digitalcarkeyllc.com/terms-of-service

Screenshots

YMOBD4 screens
OBD2 Car Scanner4 screens

Verdict

The call

The clearest difference is rating: OBD2 Car Scanner at 3.8 against YMOBD's 2.9. OBD2 Car Scanner also leads on ratings volume (1.3K vs 85). YMOBD's advantage is ads (none vs shown) and review sentiment (34% vs 4%). On price, update cadence, in-app purchases and monetization model 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. YMOBD sells 4 one-off in-app purchases and OBD2 Car Scanner sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

OBD2 Car Scanner holds the better App Store score, 3.8 against 2.9. That said, the two scores are not equally well evidenced: OBD2 Car Scanner has 1.3K ratings behind it against 85, so its average is the more settled of the two. Written reviews complicate that: 34% of YMOBD's written reviews are positive against 4% of OBD2 Car Scanner'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 5 weeks. Both last shipped on September 25, 2026.

Scorecard4 real differences · 6 level
YMOBD versus OBD2 Car Scanner: the parameters behind the verdict, then further details
ParameterYMOBDOBD2 Car Scanner
PriceFreeFree
Rating2.9 (85 ratings)3.8 (1.3K ratings) — better
Positive reviews34.3% of reviews — better3.8% of reviews
Number of ratings851.3K — better
Update frequencyEvery 5 weeksEvery 5 weeks
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size49 MB76 MB
Age rating4+4+
Developershenzhen yumingDigital Car Key LLC

Customer experience

YMOBD

All ratings85 ratings
Positive44.7%
Neutral2.4%
Negative52.9%
Written reviews70 reviews
Positive34.3%
Neutral0.0%
Negative65.7%

OBD2 Car Scanner

All ratings1,329 ratings
Positive70.2%
Neutral3.5%
Negative26.3%
Written reviews132 reviews
Positive3.8%
Neutral0.0%
Negative96.2%

User reviews

YMOBD

From 85 App Store ratings

What we love

  • 👍 Works well with Toyota
  • 👍 Accurate with many functions
  • 👍 Amazing for fixing cars
  • 👍 Useful for live data monitoring
  • 👍 Great and very detailed

Room to improve

  • 🐛 Scam, pay again for add-on
  • 🐛 Crashes on iPhone 17 Pro
  • 🐛 Requires personal info sharing
  • 🐛 Does not connect at all
  • 🐛 Junk, doesn't read OBD2 reader

OBD2 Car Scanner

From 1.3K App Store ratings

What we love

  • 👍 Easy to use

Room to improve

  • 🚫 Doesn't work as expected
  • 💰 Expensive subscription
  • 🛑 Difficult to cancel subscription
  • 🤖 Intrusive ads
  • 🔌 Connectivity issues

Bugs and requests

YMOBD

Reported bugs

15 issues
  • App crashes on iPhone 17 Pro
  • Purchased add-on requires payment again
  • Contact section not working
  • App crashes every time on iPhone 17 Pro
  • Does not connect at all
Show 10 more
  • OBD2 reader not read by software
  • No transmission temperature reading
  • Bluetooth keeps disconnecting
  • App says OBD is connected but doesn't show info
  • Updated firmware, now won't connect
  • App stopped working after update
  • Rarely connects, disconnects when trying to get info
  • Email not arriving for account creation
  • Captcha not working/sending code
  • Does not work on iOS 18

Requested features

10 requests
  • Dark Mode support
  • Landscape mode support
  • Store data for comparison over time
  • Summary of vehicle diagnostics without connection
  • Run in background feature
Show 5 more
  • Weekly report of diagnostics
  • Allow viewing diagnostic data in offline mode
  • Remove need for model, make, year input for quick scans
  • More frequent updates and optimizations
  • Add landscape function in dashboard

OBD2 Car Scanner

Reported bugs

3 issues
  • App crashes frequently
  • Unable to register device
  • Inaccurate diagnostic readings

Requested features

2 requests
  • Free trial option
  • Compatibility with more vehicle models

In-app purchases

4 purchases

YMOBD

One-time4
  • 车辆年检模拟$0.99
  • YMOBD-business expansion$1.99
  • YMOBD-Battery monitoring$2.99
Show 1 more
  • Super Car Sound$5.99
3 purchases

OBD2 Car Scanner

Subscriptions2
  • Weekly Premium Subscription$4.997 Days
  • Monthly Premium Subscription3 Days trial$11.991 Month
One-time1
  • Lifetime Premium$49.99

Questions

Is YMOBD free?
YMOBD is free to download, with in-app purchases available.
Is OBD2 Car Scanner free?
OBD2 Car Scanner is free to download, with in-app purchases available.
Which has better reviews, YMOBD or OBD2 Car Scanner?
OBD2 Car Scanner is rated higher. YMOBD averages 2.9 out of 5 from 85 ratings, while OBD2 Car Scanner averages 3.8 from 1.3K ratings.
Do YMOBD or OBD2 Car Scanner have ads?
OBD2 Car Scanner shows ads; YMOBD does not.
Which is updated more often, YMOBD or OBD2 Car Scanner?
YMOBD ships an update every 5 weeks, and OBD2 Car Scanner every 5 weeks. Most recently, YMOBD was updated on September 25, 2026 and OBD2 Car Scanner on September 25, 2026.

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