Comparison

CAN Scope vs J1939FaultCode

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

Head to head
About

CAN Scope

Features
Read full description

CAN Scope is a professional CAN bus monitoring, analysis, and communication app developed by GENEMEK. Access your CAN bus networks wirelessly via BLE (Bluetooth Low Energy). Real-Time Monitoring - View CAN messages instantly: ID, DLC, data (HEX/ASCII), timestamp, and period info - Two trace modes: Rolling and Fixed - Filter by CAN ID to focus on the messages that matter Message Transmission - Create up to 20 TX slots as CAN message templates - Single-shot or periodic transmission support - Standard (11-bit) and extended (29-bit) CAN frame support Advanced Bus Control - Wide baudrate range from 25 kbps to 1 Mbps, or enter a custom baudrate - Listen-Only mode for passive monitoring - Advanced bit timing configuration (BRP, TSEG1, TSEG2, SJW) - Live bus status, error counters, and statistics Logging & Sharing - Record CAN traffic to file - Export or share log files Configuration Management - Save, load, and update your TX slot layouts - Store different configurations for different projects Developed by GENEMEK.

About

J1939FaultCode

Features
Read full description

J1939 FaultCode is a practical offline diagnostic reference tool for commercial vehicle technicians, fleet maintenance teams, and engineers. Quickly look up J1939 SPN parameters, FMI definitions, combined DTC meanings, and brand-specific fault code mappings. The app is designed for fast field use, with built-in data and no internet connection required for core lookup features. Main features: Search SPN codes by number or keyword View FMI definitions with clear explanations Query DTC combinations using SPN + FMI Check common causes and repair suggestions Browse brand-specific fault code mappings Save frequently used codes to Favorites Review recent lookup history Switch between English and Chinese Works offline after installation Whether you are troubleshooting engine, aftertreatment, fuel, sensor, electrical, or communication faults, J1939 FaultCode helps you find useful reference information quickly and consistently.

Screenshots

CAN Scope4 screens
J1939FaultCode4 screens

Verdict

The call

The clearest difference is device support: CAN Scope at 3 against J1939FaultCode's 1. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on September 12, 2026 and September 18, 2026 respectively.

Scorecard1 real difference ยท 5 level
CAN Scope versus J1939FaultCode: the parameters behind the verdict, then further details
ParameterCAN ScopeJ1939FaultCode
PriceFreeFree
Update frequencyEvery 4 daysEvery 4 days
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod โ€” betteriPhone
Requires iOS15.1 โ€” better16.0
Further details โ€” not scored
Size26 MB11 MB
Age rating4+4+
DeveloperGEN ELEKTROMEKANIK SANAYI VE TICARET ANONIM SIRKETIๆด‹ ๅˆ˜

In-app purchases

None

CAN Scope

No in-app purchases

None

J1939FaultCode

No in-app purchases

Questions

Is CAN Scope free?
CAN Scope is free to download, with no in-app purchases.
Is J1939FaultCode free?
J1939FaultCode is free to download, with no in-app purchases.
Do CAN Scope or J1939FaultCode have ads?
Neither CAN Scope nor J1939FaultCode shows ads.
Which is updated more often, CAN Scope or J1939FaultCode?
CAN Scope ships an update every 4 days, and J1939FaultCode every 4 days. Most recently, CAN Scope was updated on September 12, 2026 and J1939FaultCode on September 18, 2026.

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