OBD2 Scanner vs OBD Compass
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OBD2 Scanner
Transform your smartphone into a powerful car diagnostic tool. Monitor real-time engine data, read and clear trouble codes, and track your vehicle's performance. Customize your dashboard and access repair manuals to understand and fix issues.
- Real-time engine data monitoring
- Read and clear trouble codes
- Performance tracking
- Customizable dashboards
- Repair manual database
- Compatibility with OBD2 ELM327 adapters
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Turn your phone into a car scanner : Diagnose & monitor with OBD2 Torque - Car Scanner ELM 327 ! Unlock your car's full potential: - OBD2 Diagnostics: Read & clear trouble codes, view real-time engine & sensor data. - Car Maintenance: Track service history, oil changes, and maintenance schedules. - Smart Driving Tools: HUD mode on windshield, Parking Finder, and Quick Navigation. - Performance Tracking: Monitor fuel efficiency, acceleration, and live gauges. - Custom Dashboards: Build personalized views with the info you need most. - Universal Compatibility: Supports standard OBD2 ELM327 Bluetooth/Wi-Fi scanners. Using tips: - The app requires a Wi-Fi or or Bluetooth 4.0 (Bluetooth LE) OBD2 ELM327 compatible adapter (device) to work. ELM327 devices plug into the diagnostics socket in the car and give your phone access to car diagnostics. - If you buy one of the cheap OBD2 ELM327 adapters , then make sure it’s not marked as v.2.1. These adapters are supported, but they have lots of bugs. - Vehicle ECUs vary in the amount of sensors supported. This app can’t show you something that is not provided by your car. Notice - This app are free-to-install, but has some premium features that need purchase/subscribe to use. Non-subscribed users can use each Premium feature for a limited number of times per day. - Subscriptions automatically renew unless cancelled 24 hours before the end of the period. - Manage your subscription and turn off auto-renewal in your account settings. - Any unused portion of a free trial will be forfeited if you subscribe. Term of use: https://appforlife.moniqtap.com/index.php/term-of-use/ Privacy Policy: https://appforlife.moniqtap.com/index.php/privacy-policy/
OBD Compass
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The Bluetooth OBDII scan tool is loaded with essential features such as full OBDII functionality. Key Features: 1. Vehicle health check, read vehicle faults. 2. Various visual data such as numerical values, waveforms, and dials. 3. n-depth analysis of fault codes, including causes of generation, potential impacts of fault codes on vehicles, maintenance suggestions, and estimated costs, etc. 4. Maintenance records and reminders. 5. Community and Knowledge Base.
Screenshots
Verdict
The clearest difference is in-app purchases: OBD Compass at none against OBD2 Scanner's 6. OBD Compass also leads on ads (none vs shown) and iOS requirement (13.0 vs 17.0). On price, update cadence 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
Both are free to download. OBD2 Scanner sells 6 in-app purchases, starting at $6.99 per 7 days. OBD Compass asks for nothing beyond the download.
Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | OBD2 Scanner | OBD Compass |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (1.1K ratings) — better | — |
| Positive reviews | 22.5% of reviews | — |
| Number of ratings | 1.1K — better | — |
| Update frequency | Monthly | Monthly |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 17.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 102 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Phong Pham | HK TOPDON TECHNOLOGY Co., LIMITED |
Bugs and requests
OBD2 Scanner
Reported bugs
8 issues- Bluetooth connection drops and requires reboot
- App fails to connect to OBD2 devices
- Sensors display N/A values in paid version
- Cannot select vehicle profile
- App crashes or becomes unresponsive
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- Fault code reading not functioning
- Unauthorized subscription charges after trial
- Device not recognized by application
Requested features
6 requests- Oil temperature and transmission data
- Wheel sensor information
- Pending DTC display
- Permanent check engine light clearing
- Module-specific scanning selection
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- Better privacy controls and data protection
OBD Compass
Not enough reviews yet to summarise bugs or requests.
In-app purchases
OBD2 Scanner
- Premium weeky freetrial3 Days trial$6.997 Days
- Premium Weekly3 Days trial$7.997 Days
- Premium Monthly$14.991 Month
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- Premium Monthly$17.991 Month
- Premium Yearly$59.991 Year
- Lifetime Premium$69.99
OBD Compass
No in-app purchases
Questions
Is OBD2 Scanner free?
Is OBD Compass free?
Do OBD2 Scanner or OBD Compass have ads?
Which is updated more often, OBD2 Scanner or OBD Compass?
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