Comparison

TJDZ vs Car 4x4

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

Head to head
About

TJDZ

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Tianjian Electric Equipment is a personalized platform used to control the functions of car electric pedals. In the application, personalized settings can be made for car electric pedal devices, such as product switches, light color switching, product sound prompts, and individual personalized settings.

About

Car 4x4

Features
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Remote control tool software for Electric Side Step and Electric Tonneau Cover. For Electric Side Step: it can flexibly open and close the left and right pedals separately, with a safety lock function to prevent misoperation; The color of the flow light on the switch pedal can be flexibly set, supporting built-in color button selection, color ring selection, channel selection, and color palette selection; You can choose to set different flow light styles. For Electric Tonneau Cover: the position and status of the electric roller blinds can be viewed in real time, the electric roller blinds can be opened and closed, and the operation can be paused at any time to ensure safety.

Screenshots

TJDZ3 screens
Car 4x44 screens

Verdict

The call

The clearest difference is update cadence: TJDZ at every 2 months against Car 4x4's every 14 months. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

TJDZ ships an update every 2 months, Car 4x4 every 14 months. Both last shipped on November 4, 2026.

Scorecard1 real difference ยท 5 level
TJDZ versus Car 4x4: the parameters behind the verdict, then further details
ParameterTJDZCar 4x4
PriceFreeFree
Update frequencyEvery 2 months โ€” betterEvery 14 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.011.0 โ€” better
Further details โ€” not scored
Size33 MB47 MB
Age rating4+17+
DeveloperGuangzhou Tianjian Automotive Products Co., LtdJiechu Technology Co., Ltd.

In-app purchases

None

TJDZ

No in-app purchases

None

Car 4x4

No in-app purchases

Questions

Is TJDZ free?
TJDZ is free to download, with no in-app purchases.
Is Car 4x4 free?
Car 4x4 is free to download, with no in-app purchases.
Do TJDZ or Car 4x4 have ads?
Neither TJDZ nor Car 4x4 shows ads.
Which is updated more often, TJDZ or Car 4x4?
TJDZ ships an update every 2 months, and Car 4x4 every 14 months. Most recently, TJDZ was updated on November 4, 2026 and Car 4x4 on November 4, 2026.

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