Comparison

beSIM vs CANviewer

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

Head to head
About

beSIM

Features
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About

CANviewer

Features
Read full description

CANviewer is a CAN log viewing tool designed for automotive electronics, ECU debugging, and field analysis. You can import ASC and BLF CAN logs on iPhone, quickly view message time, CAN ID, direction, channel, DLC, and data bytes, and filter the messages you need by CAN ID, Rx/Tx, and channel. After importing a DBC file, CANviewer can decode raw CAN data based on the signal definitions in the DBC file, convert hexadecimal data into physical values, and plot signal trends over time. Key features: - Import and view ASC / BLF CAN logs - Filter messages by CAN ID, Rx/Tx, and channel - Import DBC files and parse messages and signals - Decode CAN data into physical signal values - Compare multiple signal curves - View curves in combined or separate charts - Display X/Y axes, units, and data ranges - Tap a curve to inspect the exact time and value - Works offline; imported files are not uploaded Use cases: - Quickly inspect CAN logs in the field - Analyze ECU signal trends - Validate DBC signal definitions - Support vehicle debugging and troubleshooting - Assist engineers during road tests, business trips, and service work CANviewer is not intended to replace complex desktop tools. It is a lightweight and direct mobile tool for CAN log viewing and signal analysis.

Screenshots

beSIM4 screens
CANviewer3 screens

Verdict

The call

The clearest difference is in-app purchases: beSIM at none against CANviewer's 1. beSIM also leads on iOS requirement (13 vs 16.0). On price, update cadence, ads and device support 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. CANviewer sells 1 one-off in-app purchase. beSIM asks for nothing beyond the download.

UpkeepUpdate frequency

beSIM ships an update monthly, CANviewer every 3 weeks. The most recent releases landed on September 23, 2026 and October 4, 2026 respectively.

Scorecard2 real differences ยท 4 level
beSIM versus CANviewer: the parameters behind the verdict, then further details
ParameterbeSIMCANviewer
PriceFreeFree
Update frequencyMonthlyEvery 3 weeks โ€” better
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPod โ€” betteriPhone
Requires iOS13 โ€” better16.0
Further details โ€” not scored
Size28 MB7 MB
Age rating4+4+
DeveloperORIENTAL TELECOM (HONG KONG) LIMITEDๆด‹ ๅˆ˜

In-app purchases

None

beSIM

No in-app purchases

1 purchases

CANviewer

One-time1
  • CAN Log Viewer Pro$3.99

Questions

Is beSIM free?
beSIM is free to download, with no in-app purchases.
Is CANviewer free?
CANviewer is free to download, with in-app purchases available.
Do beSIM or CANviewer have ads?
Neither beSIM nor CANviewer shows ads.
Which is updated more often, beSIM or CANviewer?
beSIM ships an update monthly, and CANviewer every 3 weeks. Most recently, beSIM was updated on September 23, 2026 and CANviewer on October 4, 2026.

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