Comparison

Bosch Mobile Scan vs MaxiAP Diag

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

Head to head
About

Bosch Mobile Scan

This app allows users to perform vehicle diagnostics using their smartphone when paired with a special adapter. It helps identify and clear diagnostic trouble codes, review emissions status, and access live sensor data for faster repairs.

Highlights
  • Read and erase OBD II codes
  • View emissions status (QuickCheck™)
  • Automatic vehicle identification (AutoID™)
  • Access live sensor data
  • View freeze frame data
  • Vehicle history log (MyGarage™)
Read full description

Mobile Scan provides DIYers and Professional Technicians access to vehicle diagnostics using their smartphone when paired with the Bosch Mobile Scan vehicle adapter. Developed by the Global leader in DIY and professional diagnostic scan tools. Mobile Scan provides essential information to diagnose vehicles fast while saving money. •Get the probable solution to a check engine, ABS or Airbag light. Simply connect the adapter to the vehicle and pair with your smartphone to start the diagnostic process. •QuickCheck™ - Review vehicle emissions status (I/M Monitors, Codes). •Read Codes - Read Global OBD II codes and display the definitions. •Erase Codes - Erase Global OBD II codes. •AutoID™ - Automatically identifies most 2000 and newer vehicles for error proof diagnostics. •TrueLink™ - U-Scan will link to all 1996 and newer vehicles. •MyGarage™ - Library of all previous diagnosed vehicles. •Vehicle Activity Log – Detailed history of your Mobile Scan activities. •Screen shot sharing via Facebook and email Powertrain Enhanced Data included free with purchase of adapter: •Get access to Powertrain codes and definitions related to the check engine light for most 1996 and newer GM, Ford, Chrysler, Honda, Hyundai, Nissan and Toyota vehicles via the manufacturer specific Read Codes Powertrain diagnostic command. •Manufacturer specific code definitions for GM, Ford, Chrysler, Toyota, Honda, Nissan, Hyundai, Audi, BMW, Daewoo, Isuzu, Jaguar, Kia, Land Rover, Mazda, Mercedes Benz, Mitsubishi, Porsche, Saab, Subaru, Suzuki, Volkswagen, and Volvo. •Freeze Frame data - Details the conditions of the vehicle at the time the trouble code was set. •View and Graph LIVE Data - View RPMs, coolant temperature, oxygen sensor readings and more for a faster diagnosis. Over 300 sensor and data items are available as supported by vehicle. •Unlock CodeConnect™ and access the most likely cause of the check engine light. Get manufacturer specific powertrain DTC fixes. (If CodeConnect™ is owned.) • Enable manufacturer specific Erase Codes diagnostic commands. App Enhancements include: ABS Codes and Definitions- $5.99 per vehicle or $29.99 all manufacturers listed below •Get access to the ABS brake codes and definitions related to the ABS warning light for most 1996 and newer GM, Ford, Chrysler, Honda, Hyundai, Nissan and Toyota vehicles via the manufacturer specific Read Codes ABS diagnostic command. •Unlock CodeConnect™ ABS fixes and access the most likely cause of the ABS warning light (If CodeConnect™ is owned.) • Enable manufacturer specific Erase Codes ABS diagnostic command. Airbag Codes and Definitions - $7.99 per vehicle or $39.99 all manufacturers listed below •Get access to the Airbag codes and definitions related to the Airbag warning light for most 1996 and newer GM, Ford, Chrysler, Honda, Nissan and Toyota vehicles via the manufacturer specific Read Codes Airbag diagnostic commands. •Unlock CodeConnect™ Airbag fixes and access the most likely cause of the Airbag warning light (If CodeConnect™ is owned.) • Enable manufacturer specific Erase Codes Airbag diagnostic commands. CodeConnect™- First vehicle included free with purchase of adapter. Additional vehicles access $12.99 per vehicle or $39.99 all vehicles •Get the next step in diagnosing your vehicle. Access over 4.3 Million Fixes that tell you what is wrong with your vehicle with CodeConnect. CodeConnect is a comprehensive database of over 4.3 million verified fixes for the trouble codes that cause the check engine and ABS warning lights to illuminate. These actual vehicle fixes have been reported and then verified by our team of ASE certified technicians. •Note: You must purchase ABS and/or Airbag Codes and Definitions to access respective CodeConnect coverage for ABS and Airbag warning lights

About

MaxiAP Diag

This management app helps DIY vehicle owners with repairs, maintenance, and customization. It offers diagnostic insights, common dashboard light explanations, and service functions for various car models. Monitor your vehicle's health and access repair shop information.

Highlights
  • Enhanced system diagnostics
  • OBDII test (read/erase codes, live data)
  • Auto VIN vehicle identification
  • Vehicle health monitoring
  • DIY service functions (oil reset, TPMS)
  • EV/Hybrid battery testing
  • Common dashboard light guide
Features
Read full description

MaxiAP Diag is a management application designed to meet the simple repair, maintenance, and customization needs of DIY vehicle owners. As a next-generation DIY diagnostic tool, it is dedicated to providing C-end users with insights into vehicle conditions and diagnostic recommendations. Additionally, features such as common dashboard lights, Technical Service Bulletins (TSBs), and 100km acceleration test have been added based on personalized customer demands, further enhancing user understanding of the vehicle's condition. 1. Comprehensive support for enhanced system diagnostics of internationally recognized car models. 2. Provides OBDII test, including the ability to read and erase codes, emissions results, view freeze frame and live data. 3. Supports late model vehicles using faster CANFD communications. 4. Quick vehicle identification with Auto VIN. Store and quickly access past records, and diagnostic reports. 5. Complete monitoring of vehicle health, including engine oil life, average fuel consumption, and brake pad life. 6. Supports commonly performed DIY service functions, such as oil reset, TPMS relearn, battery registration, and wipers replacement. 7. Test hybrid and electric vehicle power battery. Assess battery State of Charge (SoC), State of Health (SoH), and recharge mileage. Provides battery maintenance reminders. 8. Provides additional features tailored to the needs of DIY users, such as Find a Local Repair Shop function and Common Dashboard Lights, etc.

Screenshots

Bosch Mobile Scan4 screens
MaxiAP Diag4 screens

Verdict

The call

The clearest difference is rating: MaxiAP Diag at 2.9 against Bosch Mobile Scan's 1.9. MaxiAP Diag also leads on update cadence (every 5 months vs every 10 months). Bosch Mobile Scan's advantage is ratings volume (131 vs 10) and review sentiment (11% vs 0%). On price, ads, 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. Bosch Mobile Scan sells 10 one-off in-app purchases and MaxiAP Diag sells 28 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

MaxiAP Diag holds the better App Store score, 2.9 against 1.9. That said, the two scores are not equally well evidenced: Bosch Mobile Scan has 131 ratings behind it against 10, so its average is the more settled of the two. Written reviews complicate that: 11% of Bosch Mobile Scan's written reviews are positive against 0% of MaxiAP Diag's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Bosch Mobile Scan ships an update every 10 months, MaxiAP Diag every 5 months. The most recent releases landed on October 29, 2026 and October 20, 2026 respectively.

Scorecard5 real differences · 5 level
Bosch Mobile Scan versus MaxiAP Diag: the parameters behind the verdict, then further details
ParameterBosch Mobile ScanMaxiAP Diag
PriceFreeFree
Rating1.9 (131 ratings)2.9 (10 ratings) — better
Positive reviews10.8% of reviews — better0.0% of reviews
Number of ratings131 — better10
Update frequencyEvery 10 monthsEvery 5 months — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPod
Requires iOS8.0 — better13.0
Further details — not scored
Size90 MB104 MB
Age rating4+4+
DeveloperService Solutions US LLCAutel Intelligent Technology Co., Ltd.

Customer experience

Bosch Mobile Scan

All ratings130 ratings
Positive17.7%
Neutral8.5%
Negative73.8%
Written reviews65 reviews
Positive10.8%
Neutral4.6%
Negative84.6%

MaxiAP Diag

All ratings10 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews3 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

10 purchases

Bosch Mobile Scan

One-time10
  • ABS Codes and Definitions for Vehicle$5.99
  • ABS Codes and Definitions for Vehicle 2$5.99
  • Airbag Codes and Definitions Vehicle 2$7.99
Show 7 more
  • Airbag Codes and Definitions Vehicle 1$7.99
  • CodeConnect Repair Solutions Vehicle 1$12.99
  • ABS Codes and Definitions 1 Vehicle Upgrade$24.99
  • CodeConnect Repair Solutions 1 Vehicle Upgrade$27.99
  • ABS Codes and Definitions All Vehicles$29.99
  • Airbag Codes All Vehicles$39.99
  • CodeConnect Repair Solutions All Vehicles$39.99
28 purchases

MaxiAP Diag

One-time28
  • Mazda for one year$21.99
  • Mini for one year$21.99
  • INFINITI for one year$21.99
Show 25 more
  • Lamborghini for one year$21.99
  • Mitsubishi for one year$21.99
  • Cadillac for one year$21.99
  • Chrysler for one year$21.99
  • Scion for one year$21.99
  • Subaru for one year$21.99
  • GMC for one year$21.99
  • Buick for one year$21.99
  • Audi for one year$21.99
  • Acura for one year$21.99
  • Lexus for one year$21.99
  • Volkswagen for one year$21.99
  • Nissan for one year$21.99
  • Ford for one year$21.99
  • Honda for one year$21.99
  • BMW for one year$21.99
  • Chevrolet for one year$21.99
  • Dodge for one year$21.99
  • Hyundai for one year$21.99
  • Jeep for one year$21.99
  • Kia for one year$21.99
  • Mercedes-Benz for one year$21.99
  • Ram for one year$21.99
  • Toyota for one year$21.99
  • Volvo for one year$21.99

Questions

Is Bosch Mobile Scan free?
Bosch Mobile Scan is free to download, with in-app purchases available.
Is MaxiAP Diag free?
MaxiAP Diag is free to download, with in-app purchases available.
Which has better reviews, Bosch Mobile Scan or MaxiAP Diag?
MaxiAP Diag is rated higher. Bosch Mobile Scan averages 1.9 out of 5 from 131 ratings, while MaxiAP Diag averages 2.9 from 10 ratings.
Do Bosch Mobile Scan or MaxiAP Diag have ads?
Neither Bosch Mobile Scan nor MaxiAP Diag shows ads.
Which is updated more often, Bosch Mobile Scan or MaxiAP Diag?
Bosch Mobile Scan ships an update every 10 months, and MaxiAP Diag every 5 months. Most recently, Bosch Mobile Scan was updated on October 29, 2026 and MaxiAP Diag on October 20, 2026.

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