Comparison

BlueDriver OBD2 Scan Tool vs CrewAssign

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

Head to head
About

BlueDriver OBD2 Scan Tool

This app turns your smartphone into a powerful OBD2 scan tool. It allows you to read and clear trouble codes, view live data, and generate detailed repair reports for your vehicle. Understand your car's issues and make informed repair decisions.

Highlights
  • Read and clear trouble codes (Check Engine, ABS, etc.)
  • Generate professional-grade Repair Reports
  • Access Mode 6 and smog readiness data
  • View live data with interactive graphing
  • Wireless Bluetooth scanning
  • Likely fixes explained in plain language
Read full description

BlueDriver® transforms your iPhone or iPad into a powerful OBD2 scan tool – trusted by over 1 million drivers, from professional mechanics to DIYers. Paired with the BlueDriver Bluetooth® Sensor (sold separately), it lets you read codes, diagnose issues, and fix your car with confidence—no wires, no guesswork. Whether you're checking a check engine light, running a smog test, or diving into enhanced diagnostics like ABS or transmission codes, BlueDriver gives you the tools you need to understand your vehicle and make smarter repair decisions – with clear, easy-to-understand information. What You Can Do with BlueDriver · Read and clear trouble codes - including check engine, ABS, airbag, transmission, and more · Generate, save, and share professional-grade Repair Reports based on your exact vehicle and trouble code · Access Mode 6 on-board monitoring test results · Check smog readiness and freeze frame data · View live data with multi-PID interactive graphing · Scan your vehicle wirelessly with Bluetooth—no cables required · Choose between metric and imperial settings · Get likely fixes for your vehicle’s issues, explained in plain language Enhanced Diagnostics Coverage · GM, Ford, Chrysler, Toyota, Nissan, Mazda, Mercedes (2005+ models) · Mitsubishi (2008+), Hyundai/Kia (2012+) – available worldwide · BMW/Mini, Honda/Acura, Volkswagen/Audi – available in North America · Subaru – available in the United States What Makes BlueDriver Different? · No subscription required · Backed by a database of millions real-world fixes · Repair Reports are specific to your vehicle’s year, make, and model · Works globally with the BlueDriver Sensor · App is free to install—just pair with the Sensor to start scanning You can even preview a Repair Report without a Sensor by entering your VIN and a trouble code. Account Setup Made Easy You’ll create a BlueDriver account during setup—it’s quick and easy, and gives you secure access to all your scans, reports, and new features across any device. Important Info The BlueDriver Sensor plugs into your vehicle’s data port (found in every car built since 1996). It connects to the app via Bluetooth® to deliver full diagnostic functionality. Sensor sold separately in-app or at www.BlueDriver.com

About

CrewAssign

Streamline construction workforce management with this app. It allows crews to view schedules, clock in/out on-site, and manage tasks with photo attachments. Administrators can oversee job sites, assign workers, and generate reports.

Highlights
  • Crew scheduling and calendar view
  • On-site clock in/out
  • Task management with photo attachments
  • Material and time-off requests
  • Offline functionality
  • Job site information management
  • Reporting and analytics
Features
Read full description

CrewAssign is workforce scheduling built for construction companies — the office schedules the work, the crew sees it on their phone, and the record of what happened stays attached to the job site. FOR THE CREW • See your own schedule for the day, the week or the month. • Clock in and out on site. Your hours land against the right job automatically. • Mark tasks complete and attach photos as you go. • Request materials from the job site instead of chasing someone by text. • Request time off and see where the request stands. • Add your scheduled visits to your phone's calendar. • Works offline. Clock-ins, task updates and photos taken with no signal are queued on the device and sent when you are back in range. FOR ADMINISTRATORS AND FOREMEN • A calendar of every scheduled visit, with conflict detection so two jobs can't claim the same worker. • Job sites that hold everything about the work: tasks, materials, equipment, permits, inspections, photos and documents. • Assign workers to visits and reschedule from your phone. • Approve or decline time-off requests and materials requests as they come in. • Recurring visit rules for work that repeats. • Estimates and PDF invoices built from the work that was actually recorded. • Reports and analytics on hours, costs and job progress. BUILT FOR THE FIELD • English and Spanish throughout the app. • Face ID / Touch ID unlock. • Push notifications when a schedule changes or a request needs your attention. • Photo metadata, including any GPS coordinates your camera recorded, is stripped on the device before anything is uploaded. ABOUT ACCOUNTS CrewAssign is used by a company, and accounts are created by that company's administrator — you cannot sign up as an individual. If your employer uses CrewAssign, sign in with the account they gave you. If you would like CrewAssign for your own company, get in touch at support@crewassign.app. Location is used only at the moment you clock in or out, so your employer has an accurate record of time on site. It is never collected in the background, and clocking in still works if you decline the permission.

Screenshots

BlueDriver OBD2 Scan Tool4 screens
CrewAssign4 screens

Verdict

The call

The clearest difference is rating: CrewAssign at 5.0 against BlueDriver OBD2 Scan Tool's 4.6. CrewAssign also leads on monetization model (free vs free with in-app purchases) and update cadence (every 3 days vs fortnightly). BlueDriver OBD2 Scan Tool's advantage is ratings volume (14K vs 1). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

CrewAssign holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: BlueDriver OBD2 Scan Tool has 14K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

BlueDriver OBD2 Scan Tool ships an update fortnightly, CrewAssign every 3 days. The most recent releases landed on October 14, 2026 and October 3, 2026 respectively.

Scorecard4 real differences · 6 level
BlueDriver OBD2 Scan Tool versus CrewAssign: the parameters behind the verdict, then further details
ParameterBlueDriver OBD2 Scan ToolCrewAssign
PriceFreeFree
Rating4.6 (14K ratings)5.0 (1 ratings) — better
Positive reviews57.2% of reviews—
Number of ratings14K — better1
Update frequencyFortnightlyEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.616.4 — better
Further details — not scored
Size273 MB48 MB
Age rating4+4+
DeveloperLemur Vehicle MonitorsJOSEPH CHAPMAN

Customer experience

BlueDriver OBD2 Scan Tool

All ratings13,728 ratings
Positive90.7%
Neutral2.2%
Negative7.1%
Written reviews885 reviews
Positive57.2%
Neutral5.3%
Negative37.5%

CrewAssign

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

BlueDriver OBD2 Scan Tool

Reported bugs

3 issues
  • Occasional app crashes
  • Failure to detect vehicle faults in some cases
  • Inability to update firmware on certain devices

Requested features

10 requests
  • Add support for more vehicle makes and models
  • Improve Bluetooth stability and connectivity
  • Implement odometer reading functionality
  • Expand diagnostic capabilities to include more advanced features
  • Add support for European vehicle VINs
Show 5 more
  • Enable reading of additional fault codes (e.g., airbag)
  • Maintain compatibility with older iOS versions
  • Introduce CarPlay integration
  • Add customizable live data dashboards
  • Implement audible alerts for critical sensor readings

CrewAssign

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

BlueDriver OBD2 Scan Tool

No in-app purchases

None

CrewAssign

No in-app purchases

Questions

Is BlueDriver OBD2 Scan Tool free?
BlueDriver OBD2 Scan Tool is free to download, with no in-app purchases.
Is CrewAssign free?
CrewAssign is free to download, with no in-app purchases.
Which has better reviews, BlueDriver OBD2 Scan Tool or CrewAssign?
CrewAssign is rated higher. BlueDriver OBD2 Scan Tool averages 4.6 out of 5 from 14K ratings, while CrewAssign averages 5.0 from 1 ratings.
Do BlueDriver OBD2 Scan Tool or CrewAssign have ads?
Neither BlueDriver OBD2 Scan Tool nor CrewAssign shows ads.
Which is updated more often, BlueDriver OBD2 Scan Tool or CrewAssign?
BlueDriver OBD2 Scan Tool ships an update fortnightly, and CrewAssign every 3 days. Most recently, BlueDriver OBD2 Scan Tool was updated on October 14, 2026 and CrewAssign on October 3, 2026.

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