OBD故障码助手 vs OBD CAN
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OBD故障码助手
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OBD故障码查询助手是一款为车主、修理工、汽车改装发烧友提供汽车故障码查询、汽车维修保养知识、维修引导的APP。用户可以及时更新最新的车型维修信息通告等。 现包含的故障码库可支持的车型有: 1.大众:桑塔纳、PASSET、A6L、tuguan(捷达、桑塔纳、宝来、PASSET、速腾、迈腾、A4/A4L、A6/A6L,Q5、Q7、tuguan) 2.丰田:凯美瑞、卡罗拉、威驰 3.本田:雅阁、CRV、思域 4.通用:GL8、凯越、科鲁兹 5.福特:福克斯 6.日产:轩逸、天籁 7.现代:伊兰特、索纳塔 8.起亚:K2、K5、狮跑 9.雪铁龙:C5、C3 10.标致:307、308、408、508 11.奔驰:C200,B200 等; 12.宝马:X1,X3 等; 13.克莱斯勒:300c 14.马自达:马3、马6 15.三菱:翼神 16.吉利:帝豪系列; 17.BYD:F3、F6 等等;
OBD CAN
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Understand a check engine light and record your car's data with OBD CAN, an OBD2 scanner for trouble codes, live sensors and custom parameters. Requires a compatible OBD2 / ELM327 BLE adapter for iOS. TROUBLE CODES & VEHICLE DIAGNOSTICS • Read and clear standard OBD2 engine and emissions codes for free. • Copy reports and questions to a third-party AI tool of your choice for help interpreting results. VEHICLE-SPECIFIC UDS DIAGNOSTICS Browse vehicle reference configurations and available modules, then scan supported systems such as ABS, airbags and transmission. Read or clear codes where supported. Clearing is confirmed only after an explicit module acknowledgement; no response does not mean no faults. LIVE DATA & CUSTOM DASHBOARDS Monitor supported sensors such as speed, engine RPM and coolant temperature. Customize your dashboard and choose the sensors you want in your live data view, in portrait or landscape. Set up your dashboard and live data selections before connecting to the car. SENSOR DATA LOGGING • Choose your sensors, adjust their read intervals and set a recording duration. Your last settings are saved for next time. • Watch live charts while recording. Stop manually or let the session end at the set time. • Review charts and statistics, revisit saved reports, save a full report image or export CSV data for analysis in a spreadsheet. • Sensors are read in sequence. Selecting more sensors generally increases the time between updates for each one. FUEL CONSUMPTION TRACKING See instant and average fuel consumption, fuel used and distance traveled. Record fuel figures alongside the sensor readings used to calculate them, then export everything in one CSV file. Revisit previous reports or save them as images. Fuel figures come from vehicle-reported fuel flow or a supported estimation method. Availability and results depend on your vehicle's data and the relevant settings. CUSTOM VEHICLE PARAMETERS — LABS Go beyond standard sensors with custom OEM PIDs. Browse by brand and model, import Torque CSV or define requests and formulas. Read once or record continuously with live charts, history and CSV export. Browsing is free; adding, saving, reading and recording parameters require paid membership. Reference compatibility varies by vehicle and module. MORE WAYS TO CHECK YOUR CAR Record acceleration and elapsed time, observe battery voltage during starting, and view supported O2 sensor graphs. Monitor noise with your phone's microphone alongside vehicle data. View VIN, ECU information, emissions readiness and supported Mode 05/06 results. SAVED REPORTS & LANGUAGES Several tests save reports on your device for viewing after sign-in, even without a car connection. Multiple languages and localized CSV column headings are supported. CONNECTION & MEMBERSHIP • A compatible BLE OBD2 adapter is required and sold separately. Classic Bluetooth and Wi-Fi are not supported. • Sensors, modules and tests vary by vehicle, protocol and adapter; not all features work on every vehicle. • Sign-in is required for readings and tests. UDS, custom parameter actions, sensor logging, fuel tracking, custom live data selections and some dashboard and monitoring features need paid membership. • Clearing codes does not repair their cause; readiness results do not guarantee an emissions inspection pass. MEMBERSHIP & SUBSCRIPTIONS Available plans, prices and benefits are shown in the app. If you choose an auto-renewing subscription, payment is charged to your Apple Account at purchase confirmation. It renews unless canceled at least 24 hours before the current period ends, with renewal charged within the final 24 hours. Manage or cancel subscriptions in your Apple Account settings. Restore purchases in the app. Privacy Policy: https://www.obdcan.com/privacy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: OBD故障码助手 at none against OBD CAN's 2. OBD故障码助手 also leads on iOS requirement (7.1 vs 15.0). OBD CAN's advantage is update cadence (every 8 days vs every 2 months). On price, 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
Both are free to download. OBD CAN sells 2 in-app purchases, starting at $1.99 per month. OBD故障码助手 asks for nothing beyond the download.
OBD故障码助手 ships an update every 2 months, OBD CAN every 8 days. The most recent releases landed on October 6, 2026 and October 24, 2026 respectively.
| Parameter | OBD故障码助手 | OBD CAN |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 7.1 — better | 15.0 |
| Further details — not scored | ||
| Size | 24 MB | 67 MB |
| Age rating | 4+ | 17+ |
| Developer | 深圳市爱夫卡科技有限公司 | 明道通途 |
In-app purchases
OBD故障码助手
No in-app purchases
OBD CAN
- Premium Monthly3 Days trial$1.991 Month
- Premium Yearly3 Days trial$9.991 Year









