Comparison

Diag vs TabScan

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

Head to head
About

Diag

This diagnostic software package is designed for Volkswagen vehicles. It requires the MaxiAP200 main program to function and provides diagnostic capabilities for your car.

Highlights
  • Volkswagen vehicle diagnostics
  • Requires MaxiAP200
  • Diagnostic software package
  • Vehicle system analysis
Features
Read full description

Diagnostic software package for VW vehicles, which requires to work with the main program MaxiAP200 together.

About

TabScan

Features
Read full description

TabScan is an application developed by Eucleia Technology company based on the original factory diagnostic technology. It is specifically designed to provide customize car settings and upgrading vehicle functions for Volkswagen, Audi, Porsche, Mercedes-Benz, BMW, and Ford vehicle models. Without requiring any professional technical knowledge, you can easily operate it on your smartphone to enjoy advanced features, enhancing your driving experience. Key Features: Supported vehicle brands for customize car settings include Volkswagen, Audi, Porsche, Mercedes-Benz, BMW, and Ford. More vehicle brands are currently under development, so stay tuned! Popular customization features include: Disabling memory start-stop Activating wireless CarPlay Adjusting turn signal blink frequency Activating sports instrument cluster Locking the vehicle without turning off the engine For more supported vehicle functions, please check the application. With TabScan, you can effortlessly customize car settings and upgrade your vehicle functions, enhancing your driving experience and enjoyment. TabScan allows you to personalize your car and enjoy a more enjoyable driving experience. Download and start using it now!

Screenshots

Diag4 screens
TabScan4 screens

Verdict

The call

The clearest difference is iOS requirement: TabScan at 11.0 against Diag's 13.0. On price, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Diag ships an update every 2 months, TabScan monthly. The most recent releases landed on November 4, 2026 and November 3, 2026 respectively.

Scorecard1 real difference · 9 level
Diag versus TabScan: the parameters behind the verdict, then further details
ParameterDiagTabScan
PriceFreeFree
Rating3.1 (14 ratings) — better—
Positive reviews40.0% of reviews—
Number of ratings14 — better—
Update frequencyEvery 2 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.011.0 — better
Further details — not scored
Size337 MB87 MB
Age rating4+17+
DeveloperAutel Intelligent Technology Co., Ltd.OBD GO TECH CO LTD

In-app purchases

None

Diag

No in-app purchases

None

TabScan

No in-app purchases

Questions

Is Diag free?
Diag is free to download, with no in-app purchases.
Is TabScan free?
TabScan is free to download, with no in-app purchases.
Do Diag or TabScan have ads?
Neither Diag nor TabScan shows ads.
Which is updated more often, Diag or TabScan?
Diag ships an update every 2 months, and TabScan monthly. Most recently, Diag was updated on November 4, 2026 and TabScan on November 3, 2026.

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