ShiftLock icon

ShiftLock

v3.0

Mark Knowles

39 ratings

Report updated Apr 7, 2026

What Is ShiftLock?

ShiftLock is a professional reference tool for the towing and roadside assistance industry, providing a specialized database of shift interlock release instructions for vehicles from 1985 to the present. It targets tow operators and road rangers who need to move vehicles safely without keys or power, emphasizing damage reduction and roadside efficiency. The app's primary market position is a reliable, offline-capable utility with a one-time purchase model, currently ranking #45 in its paid category in the US.

What users think iIndependent intel reports to help builders create better apps or enhance existing ones. Still in beta, accuracy and relevancy get better every day. For informational purposes only.

Mixed
Utility for Towing Professionals
Content Depth and Accuracy... Show more

What are the key features?

Shift Interlock DatabaseDifferentiator

Comprehensive collection of shift interlock release instructions for over 54 manufacturers spanning nearly 30 years.

Offline AccessDifferentiator

Ability to save vehicle release information locally for use in areas with poor or no cellular service.

Visual SearchDifferentiator

Allows users to identify release mechanisms visually when specific vehicle information is unavailable.

Advanced SearchStandard

Filter and locate specific vehicle data by manufacturer, model, or year.

High-Definition Visual GuidesStandard

Provides accurate pictures and clear, concise instructions for identifying hidden release points.

What do users think? iIndependent intel reports to help builders create better apps or enhance existing ones. Still in beta, accuracy and relevancy get better every day. For informational purposes only.

Mixed

Recent user voice shows a mixed sentiment. Users appreciate utility for towing professionals and community engagement, but report content depth and accuracy and value for money.

What Users Love

Utility for Towing Professionals

It has helped me numerous times

It’s a wealth of information at your fingertips... it’s paid for itself over and over again

Community Engagement

They have a very active FB page with many followers willing to share knowledge

Pain Points

Content Depth and Accuracy

Not much content. You can’t select Models or go by Years

Hardly any vehicles on here and app is always glitchy

Value for Money

Wouldn’t bother me if it was a free app, but a paid app should be better

Have better luck just googling it for free rather than wasting 7 dollars

Poor Visuals and Instructions

Horrible pictures, missing data

Sometimes we need a video on the harder to see ones

High confidence · 25 reviews available

How is it ranked?

ChartRankChange
Paid#45NEW
No rank history available for this chart.

What are the pros and cons?

Pros

  • Robust offline capability for remote field use
  • Niche focus on a high-pain-point mechanical problem
  • One-time purchase model avoids subscription fatigue
  • 30-year historical database coverage

Cons

  • Inconsistent data depth across vehicle years/models
  • Low-resolution instructional imagery
  • Lack of video content for complex procedures
  • Glitchy UI reported by some users

What is the market outlook?

Growth Opportunities

  • Integration of VIN scanning for instant vehicle identification
  • API partnerships with major dispatch software like Towbook
  • Addition of short-form video tutorials to justify price
  • Expansion into other roadside technical specs (e.g., jump-start points)

Market Threats

  • Free high-quality content on YouTube and Google
  • Consolidated industry platforms (Traxero) building native tools
  • Direct competitors like Tow-Spec offering more granular data
  • Rapidly changing electronic shift systems requiring constant updates

Who competes with ShiftLock?

What are the key takeaways?

ShiftLock is a divisive reference app that is a paid app. With a 3.2/5 rating from 39 reviews, it receives mixed feedback from users. Users particularly appreciate utility for towing professionals, though content depth and accuracy remains a common concern.

Best for: Towing operators, dispatchers, D.O.T. workers, and road rangers who require quick, reliable access to vehicle-specific shift release information in the field.

How much does it cost?

Model: paid

Tiers:
One-time purchase price of $6.99

Straightforward premium model targeting professionals who value a one-time investment over recurring subscription costs for specialized utility tools.

iOS Version

3.0

Release Date

Feb 19, 2016

iOS Price

$6.99

Developer

Mark Knowles

Independent intel to help builders create better apps.

No publisher influence. No third-party bias. Built with objectivity in mind to serve the builder community. Reports are continuously improved and refined. For informational purposes only.

Hope this helps & keep building! · Found an error?

Cite this report

Marlvel.ai. “ShiftLock Intelligence Report.” Updated Apr 7, 2026. https://marlvel.ai/intel-report/reference/com-goodbarber-shiftlock

Agent Markdown (.md)·

Data licensed under CC-BY-NC 4.0