Comparison

OBD2 Scanner ELM327 vs MAXOBD

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

Head to head
About

OBD2 Scanner ELM327

This app provides comprehensive OBD scanning for vehicles, allowing users to read and clear fault codes from various ECUs, monitor live sensor data, and perform special functions like DPF regeneration and injector coding. It supports over 100 vehicle makes and offers detailed reports and diagnostic assistance.

Highlights
  • Read and delete fault codes from any ECU
  • Monitor over 200 live sensor data points
  • Perform special OBD functions
  • Generate shareable PDF diagnostic reports
  • Check SMOG status for emission tests
  • Reset service/oil lights
  • Track 0-60 and 0-100 timing
Features
Read full description

GaragePro is the perfect OBD Scanning app for automotive enthusiasts, repair shops, and DIYers. Covering 100+ vehicle makes, GaragePro offers you comprehensive OBD coverage such as reading fault codes from all ECUs- Engine, Airbag, ABS, BCM etc., as well as Special functions such as Injector coding, DPF regeneration, Throttle Reset, ABS (Brake) bleeding, Steering angle reset etc. Key Features: OBD2 Scanning: Read and delete fault codes from any module- Engine, ABS, SRS, EPS, BCM and more. GaragePro can read OBD codes from 100s of ECUs across different makes, covering 100,000+ unique DTCs. Live Data Monitoring: Read over 200 live data points from vehicle sensors in real-time, including RPM, speed, coolant temperature, fuel trim etc. as well as vehicle specific live sensor data points. GaragePro OBD2 Scanner also has intuitive graphs and customizable displays, that let your visualize changes in your OBD2 data. You can also export PID readings to Excel or PDF for detailed analyses. Multi-Mode Coverage: Unlock more OBD2 modes than other apps. GaragePro offers access to a plethora of modes/service IDs such as modes 01, 02, 03, 04, 06, 07, 09, 0A, as well as vehicle specific modes for enhanced OBD coverage. Special OBD functions like Injector coding, DPF regeneration, Throttle Reset, ABS (Brake) bleeding, Steering angle reset, Power balance, Fuel Density Reset, Learning Value Reset, Actuation Tests, AC Control Module Reset, Indicator light reset, Brake Pedal Position Sensor learning, Light and Door customizations, etc. Check the app for the full list applicable to your car. PDF report and Support: Get a shareable PDF with code descriptions when scanning a vehicle and share it with your technicians, friends, customers or store it for future comparisons. GaragePro also offers email and chat support to its customers. Smog checks through OBD: Be ready for your vehicle's emission tests by checking SMOG status in the app. Service/Oil reset: GaragePro OBD2 Scanner includes both- Auto and manual methods to reset the Service/Oil lights. Check Engine Light/Dashboard Lights Assistance: Compared to other apps, GaragePro is able to cover not just MIL, but also ABS, airbag, oil level, steering and other warning lights. OBD Freeze Frame data: Read OBD freeze frame data to understand your sensors' state when OBD codes were generated. Track mode: Measure your 0-60, 0-100 timing and see how well you do on the track. Vehicle Compatibility: The GaragePro OBD2 Scanner app works with any vehicle that's compliant with the OBD2 standard (introduced in the USA in 1996). It reads data from 100s of ECUs in cars & bikes, including Engine, ABS, Airbags (SRS), EPS, BCM, Traction Control, Transmission, HVAC, Instrument cluster & more. It is compatible with all American, Japanese, Korean, German, and other European car & bike makes, including but not limited to GM, Toyota, Ford, Lincoln, Buick, Chevrolet , Opel, Nissan, Infinity, Renault, Mercedes, Suzuki, Lexus, Triumph, Hyundai, Kia, Mazda, Honda, Mahindra, Tata, MG, Volkswagen, Audi, Skoda, Seat, BMW and more. For motorcycles, you will need a connecting cable that connects the 16-pin OBD scanner with the bike's OBD port. Bike diagnostics include DTC reading & deletion, live data stream & freeze frame data. OBD Scanner Compatibility: GaragePro OBD2 Scanner works with any Bluetooth OBD Scanner, including most elm327 based OBD scanners. It also works with popular OBD scanners like Vlink, OBDLink, Carista, Veepeak, Viecar, Kiwi and more. GaragePro also has its own OBD2 Scanner that works seamlessly with the app. Please note: The availability of sensor data depends on your vehicle's ECUs. The app can only display information that is provided by your car's systems. Whether you're a car enthusiast seeking performance gains, a mechanic looking to tackle repairs, or a car owner committed to staying informed, GaragePro OBD2 Scanner is the perfect OBD2 diagnostic tool for you. Email support: fix@carpm.in

About

MAXOBD

This utility app allows car owners to detect vehicle faults by connecting to standard OBD protocol devices. It enables users to read trouble codes, view real-time data, and access performance parameters, with enhanced features when using specific hardware. The goal is to simplify vehicle management and early problem detection.

Highlights
  • Vehicle fault detection
  • Connects with standard OBD devices
  • Read trouble codes
  • View real-time data
  • Access performance parameters
  • Clear trouble codes (with specific hardware)
Features
Read full description

This MAXOBD app is designed for all car owners, providing convenient vehicle fault detection services. It supports connection with standard OBD protocol devices, allowing users to perform common OBD scans and quickly check the health of their vehicles. By connecting to the OBD device, users can easily read the vehicle’s trouble codes, view real-time data, and access various performance parameters. In particular, if users connect a Konnwei device, they can enjoy more advanced features, including scanning more fault information and clearing trouble codes. This helps car owners not only identify potential vehicle issues but also clear trouble codes and restore the vehicle to normal operation. The goal of this app is to make it easier for every car owner to manage their vehicle, detect problems early, avoid costly repairs, and ensure the vehicle is always in the best running condition. Whether for regular health checks or quick diagnostics when a fault occurs, this app will be a reliable assistant for your car care

Screenshots

OBD2 Scanner ELM3274 screens
MAXOBD4 screens

Verdict

The call

The clearest difference is rating: OBD2 Scanner ELM327 at 4.3 against MAXOBD's 2.4. OBD2 Scanner ELM327 also leads on review sentiment (46% vs 29%) and ratings volume (25 vs 7). MAXOBD's advantage is in-app purchases (none vs 10). On price, update cadence, ads and device support 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 ELM327 sells 10 in-app purchases, starting at $4.99 per year. MAXOBD asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

OBD2 Scanner ELM327 holds the better App Store score, 4.3 against 2.4. Both are backed by a comparable volume of ratings — 25 and 7 respectively. Written reviews point the same way: 46% of OBD2 Scanner ELM327's written reviews are positive against 29% of MAXOBD's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.

Scorecard6 real differences · 4 level
OBD2 Scanner ELM327 versus MAXOBD: the parameters behind the verdict, then further details
ParameterOBD2 Scanner ELM327MAXOBD
PriceFreeFree
Rating4.3 (25 ratings) — better2.4 (7 ratings)
Positive reviews46.2% of reviews — better28.6% of reviews
Number of ratings25 — better7
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size65 MB47 MB
Age rating4+17+
DeveloperZymbia Interactive Technologies Private Limited祖策 谢

Customer experience

OBD2 Scanner ELM327

All ratings19 ratings
Positive78.9%
Neutral5.3%
Negative15.8%
Written reviews65 reviews
Positive46.2%
Neutral3.1%
Negative50.8%

MAXOBD

All ratings7 ratings
Positive28.6%
Neutral14.3%
Negative57.1%
Written reviews7 reviews
Positive28.6%
Neutral14.3%
Negative57.1%

Bugs and requests

OBD2 Scanner ELM327

Reported bugs

21 issues
  • App stops working
  • App does not load past splash screen
  • App is not responding properly
  • App crashes when trying to buy subscription
  • App starts crashing after a few days
Show 16 more
  • License removed after uninstall/reinstall
  • App does not start after downloading
  • Shows false error codes
  • Requires uninstall to connect
  • App closes and won't open
  • Cannot clear codes after paying for subscription
  • Scanning issue (stops at 4%)
  • App hangs at 5% during scan
  • Freezes or gives an error during scan
  • Most GM PIDs not available
  • Live View Advanced PIDs missing
  • Cannot pull or clear codes
  • Not functional after updates
  • Cannot link to iPhone
  • Not working on multiple car models
  • Service reset states not available after payment

Requested features

8 requests
  • DPF REGEN feature
  • Ability to select new vehicle easily
  • Reactivate perpetual license without reinstalling
  • List of approved scanner devices
  • Support for WiFi adapters on iOS
Show 3 more
  • Add Google ID option for iPhone
  • Fix PIDs missing in Live View Advanced
  • Option to store data locally instead of server

MAXOBD

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

OBD2 Scanner ELM327

Subscriptions5
  • AI Scan Summary (Yearly)$4.991 Year
  • Personal Plan$9.991 Year
  • Lite - Yearly$9.991 Year
Show 2 more
  • Premium - Yearly$32.991 Year
  • Standard - Yearly$34.991 Year
One-time5
  • Lite - Perpetual$17.99
  • Lite - Perpetual$21.99
  • Standard - Perpetual$54.99
Show 2 more
  • Standard - Perpetual$69.99
  • Advanced - Perpetual$159.99
None

MAXOBD

No in-app purchases

Questions

Is OBD2 Scanner ELM327 free?
OBD2 Scanner ELM327 is free to download, with in-app purchases available.
Is MAXOBD free?
MAXOBD is free to download, with no in-app purchases.
Which has better reviews, OBD2 Scanner ELM327 or MAXOBD?
OBD2 Scanner ELM327 is rated higher. OBD2 Scanner ELM327 averages 4.3 out of 5 from 25 ratings, while MAXOBD averages 2.4 from 7 ratings.
Do OBD2 Scanner ELM327 or MAXOBD have ads?
Neither OBD2 Scanner ELM327 nor MAXOBD shows ads.
Which is updated more often, OBD2 Scanner ELM327 or MAXOBD?
OBD2 Scanner ELM327 ships an update every 3 weeks, and MAXOBD every 3 weeks. Most recently, OBD2 Scanner ELM327 was updated on November 7, 2026 and MAXOBD on November 4, 2026.

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