Comparison

Lippert Diagnostics vs STL by SkillAbove

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

Head to head

About

Lippert Diagnostics

Features

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The Lippert Diagnostics app allows users to connect to a device and read the Diagnostic Trouble Codes (DTCs) from the device. DTCs will enable users to troubleshoot why a device does not function correctly. Users can scan QR codes to connect to a device. The diagnostic app will then show a user the number of active trouble codes on that device and inactive trouble codes.

About

STL by SkillAbove

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This app directly interfaces with the STL Controller by SkillAbove RV Tech Tools.

Screenshots

Lippert Diagnostics3 screens

STL by SkillAbove3 screens

Verdict

The call

The clearest difference is update cadence: STL by SkillAbove at every 9 days against Lippert Diagnostics's every 3 months. STL by SkillAbove also leads on iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support 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

Lippert Diagnostics ships an update every 3 months, STL by SkillAbove every 9 days. The most recent releases landed on October 25, 2026 and October 9, 2026 respectively.

Scorecard2 real differences · 4 level

Lippert Diagnostics versus STL by SkillAbove: the parameters behind the verdict, then further details
Parameter	Lippert Diagnostics	STL by SkillAbove
Price	Free	Free
Update frequency	Every 3 months	Every 9 days — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	15.0	12.0 — better
Further details — not scored
Size	328 MB	34 MB
Age rating	4+	4+
Developer	Lippert Components, Inc.	Diego Gentner

In-app purchases

None

Lippert Diagnostics

No in-app purchases

None

STL by SkillAbove

No in-app purchases

Questions

Is Lippert Diagnostics free?

Lippert Diagnostics is free to download, with no in-app purchases.

Is STL by SkillAbove free?

STL by SkillAbove is free to download, with no in-app purchases.

Do Lippert Diagnostics or STL by SkillAbove have ads?

Neither Lippert Diagnostics nor STL by SkillAbove shows ads.

Which is updated more often, Lippert Diagnostics or STL by SkillAbove?

Lippert Diagnostics ships an update every 3 months, and STL by SkillAbove every 9 days. Most recently, Lippert Diagnostics was updated on October 25, 2026 and STL by SkillAbove on October 9, 2026.