Comparison

SmartOBD vs J1939OBD

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

Head to head
About

SmartOBD

Features
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Download the iPhone and iPad version of the SmartOBD-II fleet tracking application and access up-to-date information on the location of your company vehicles. In addition to basic functions, this newly-developed application offers a range of features to save you a lot of time and administration, all from the comfort of your mobile phone. What can the SmartOBD-II iOS application offer? β€’ Individual vehicle data sheets, e.g. current location, speed, data update time, driver’s name, POIs, ignition status and zone information β€’ List and map views of the company vehicle fleet β€’ Log sheet queries and graphs β€’ Logging of official and private trip distances β€’ Automatic log-in, multi-language user interface for easy use

About

J1939OBD

Features
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A diagnostic app for industrial and commercial vehicle engines using the J1939 CAN protocol. The app supports the following functions: - Display the active error codes - Display the passive error codes - Delete the error codes - Display of engine measured values - Information about the status DPF - Information about the SCR system - Information about fuel consumption - Engine information - Terminal mode To connect to the engine you need an EML327 compatible Wifi OBD interface as of V1.4 and a connection cable from the diagnostic connector to OBD. Various manufacturers offer corresponding cables, as well as a well-known engine manufacturer from Cologne, who distributes a corresponding adapter cable via his dealer network. Visit my homepage for further informations. An EML327 Wifi interface is offered on known Internet platforms.

Screenshots

SmartOBD4 screens
J1939OBD4 screens

Verdict

The call

The clearest difference is in-app purchases: SmartOBD at none against J1939OBD's 1. SmartOBD also leads on update cadence (every 4 months vs every 41 months) and iOS requirement (9.0 vs 12.1). On price, ads and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. J1939OBD sells 1 one-off in-app purchase. SmartOBD asks for nothing beyond the download.

UpkeepUpdate frequency

SmartOBD ships an update every 4 months, J1939OBD every 41 months. The most recent releases landed on October 4, 2026 and September 18, 2026 respectively.

Scorecard3 real differences Β· 3 level
SmartOBD versus J1939OBD: the parameters behind the verdict, then further details
ParameterSmartOBDJ1939OBD
PriceFreeFree
Update frequencyEvery 4 months β€” betterEvery 41 months
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPad, iPod β€” betteriPhone, iPod
Requires iOS9.0 β€” better12.1
Further details β€” not scored
Size22 MB14 MB
Age rating4+4+
DeveloperGinception Software LtdS.Koepge

In-app purchases

None

SmartOBD

No in-app purchases

1 purchases

J1939OBD

One-time1
  • Get full access for 1939OBD$3.99

Questions

Is SmartOBD free?
SmartOBD is free to download, with no in-app purchases.
Is J1939OBD free?
J1939OBD is free to download, with in-app purchases available.
Do SmartOBD or J1939OBD have ads?
Neither SmartOBD nor J1939OBD shows ads.
Which is updated more often, SmartOBD or J1939OBD?
SmartOBD ships an update every 4 months, and J1939OBD every 41 months. Most recently, SmartOBD was updated on October 4, 2026 and J1939OBD on September 18, 2026.

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