Know what’s wrong with your car — before you get charged.
WrenchLogic learns from real-world faults, across real vehicles, and gets smarter every time someone uses it.
Features

Hi, I'm Torque — your AI mechanic assistance
I can help you:
- understand a symptom
- walk through a diagnosis
- explain a result
- point you in the right direction
WrenchLogic isn’t just for mechanics.
It’s for people who own vehicles.
Mechanics are contributors, validators, and custodians of the knowledge — but the beneficiary is the public.
What WrenchLogic really is.
WrenchLogic exists because most people rely on a machine every day that they don’t understand, but are completely dependent on.
For most Kiwis & Australians a vehicle isn’t a luxury — it’s how they get to work, take their kids to school, access healthcare, and live their lives. Yet when something goes wrong, they’re forced to hand over trust blindly. They don’t know what’s wrong, what parts are involved, what’s urgent, what’s safe, or what’s fair.
That imbalance is where people get taken advantage off ( ripped off )
WrenchLogic was created to close that gap.
WrenchLogic doesn’t tell people how to repair a car.
It doesn’t replace mechanics.
What WrenchLogic does,
What it does is translate mechanical experience into understandable logic.
By guiding a vehicle owner through simple yes/no questions — the same questions an experienced mechanic asks in their head — WrenchLogic narrows a problem down to likely fault areas, the parts involved, and the systems affected.
It gives the owner:
context
language
confidence
and an understanding of what they’re dealing with
Not certainty — clarity.
When a vehicle owner understands:
whether a problem is brake-related or suspension-related
whether it’s urgent or something that can wait
whether it’s likely a sensor, a wear item, or a mechanical failure
They walk into a workshop differently.
They ask better questions.
They understand estimates.
They can spot when something doesn’t add up.
That alone changes the entire dynamic.
The bigger picture
We license people to operate multi-tonne machines at highway speeds, yet we don’t require them to understand:
how brakes actually work
what a worn tyre looks like
what wheel bearings sound like
what overheating really means
why fuel, temperature, and lubrication matter
WrenchLogic isn’t trying to turn owners into mechanics.
It’s trying to make them mechanically literate.
Just enough to be safe.
Just enough to be informed.
Just enough to not be taken advantage of.
Where mechanics fit in
Mechanics are not the target audience — they are the source of truth.
Their lived experience:
common failures
recurring patterns
real-world symptoms
what fails silently vs catastrophically
That knowledge is captured, reviewed, and structured so it can be shared responsibly with the public.
WrenchLogic doesn’t dilute the trade.
It preserves it.
WrenchLogic exists because vehicle ownership shouldn’t require blind trust.
People deserve to understand the machines they depend on — not to fix them, but to protect themselves, their families, and their finances.
That’s where experience becomes logic.
WrenchLogic is currently under development.
A mechanic-built diagnostic system app for your phone designed to isolate faults through structured questioning and probability.
Justin Rangi
Diesel Mechanic



Torque runs behind the scenes - learning from every diagnosisbuilding smarter, more accurate results over time
What People Say About WrenchLogic
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Privacy Policy
Last Updated:07/05/2026
Welcome to WrenchLogic.
By using the WrenchLogic app, website, or related services (“Services”), you agree to these Terms & Conditions (“Terms”).
If you do not agree to these Terms, please do not use WrenchLogic.
1. About WrenchLogicWrenchLogic is a vehicle issue guidance and diagnostic assistance platform designed to help users better understand possible vehicle faults, symptoms, likely affected components, and general repair guidance based on the information they provide.
WrenchLogic is intended to assist users in understanding likely mechanical issues and to help them make more informed decisions before seeking repair or service.
WrenchLogic is not a licensed workshop, mechanic, repairer, engineer, or emergency roadside service.
2. No Guaranteed DiagnosisWrenchLogic provides probability-based guidance only.
Any information, diagnosis result, confidence score, likely fault, suggested part, or repair direction shown within WrenchLogic is based solely on:
- the answers entered by the user,
- the diagnostic logic and systems used by WrenchLogic,
- and any available vehicle or session data.
- that any diagnosis is correct,
- that a fault has been fully identified,
- that a vehicle is safe to drive,
- or that a repair recommendation will resolve the issue.
All results should be treated as general guidance only and not as a substitute for inspection by a qualified professional.
3. Use at Your Own RiskYou acknowledge and agree that any decisions made based on WrenchLogic, including but not limited to:
- continuing to drive a vehicle,
- attempting a repair,
- purchasing parts,
- delaying inspection,
- or relying on a diagnosis result,
are made entirely at your own risk.
WrenchLogic is not liable for:
- vehicle damage,
- breakdowns,
- towing costs,
- repair costs,
- business interruption,
- missed travel,
- injury,
- loss, or damage of any kind
arising from the use of the Services.
If you are unsure whether your vehicle is safe to operate, you should stop using it and seek qualified mechanical assistance immediately.
4. Safety-Critical IssuesSome vehicle faults can create immediate safety risks.
If WrenchLogic indicates a concern relating to:
- brakes,
- steering,
- overheating,
- fuel leaks,
- battery/electrical faults,
- engine warning lights,
- stalling,
- loss of power,
- or any issue that could affect safe operation,
you should use caution and seek professional assistance before continuing to drive.
WrenchLogic does not monitor your vehicle in real time and cannot assess all real-world safety conditions.
5. User ResponsibilityYou are responsible for ensuring that:
- the information you enter is accurate and truthful,
- you do not rely solely on WrenchLogic where professional inspection is appropriate,
- and you use common sense and reasonable judgment when interpreting any result.
Entering incomplete, incorrect, or misleading information may affect the reliability of any result.
6. Not Professional AdviceThe Services are provided for general informational and guidance purposes only.
Nothing within WrenchLogic constitutes:
- mechanical certification,
- engineering advice,
- legal advice,
- financial advice,
- roadworthy certification,
- warranty advice,
- or professional trade instruction.
You should always consult an appropriately qualified professional where required.
7. Subscriptions and Paid FeaturesSome features of WrenchLogic may require a paid subscription or purchase.
These may include, but are not limited to:
- access to full diagnosis results,
- saving multiple vehicles,
- expanded fault breakdowns,
- saved diagnosis history,
- and future premium features.
- pricing and billing frequency will be clearly shown before purchase,
- subscriptions may auto-renew unless cancelled,
- cancellations and billing management are handled through the relevant app store or payment platform (such as Google Play or Apple App Store),
- and access to paid features may end when a subscription expires or is cancelled.
WrenchLogic does not guarantee uninterrupted access to paid features if platform billing or account issues occur.
8. Free and Paid Plan LimitsWrenchLogic may offer both free and paid plan options.
Free users may have limits on:
- number of saved vehicles,
- number of diagnosis sessions,
- access to full diagnosis results,
- history,
- and other features.
Paid plans may include expanded access depending on the subscription selected.
WrenchLogic may update, modify, add, or remove plan features, limits, and pricing from time to time.
9. Refunds and BillingAll purchases, subscriptions, renewals, billing issues, and cancellations are generally handled through the relevant platform provider unless otherwise stated.
For example:
- Google Play purchases are managed through Google Play,
- Apple App Store purchases are managed through Apple.
Refund requests are subject to the policies of the payment platform used.
WrenchLogic does not guarantee refunds outside the rules of the relevant billing provider.
10. Accounts and Saved DataYou may be able to create an account, save vehicles, store diagnosis history, or manage subscription settings.
You are responsible for maintaining the confidentiality of your account and login details.
WrenchLogic is not responsible for unauthorised access caused by:
- weak passwords,
- shared devices,
- account misuse,
- or failure to keep login credentials secure.
We may suspend or terminate accounts where misuse, fraud, abuse, or policy breaches are suspected.
11. Vehicle and User DataWrenchLogic may collect and store information such as:
- vehicle make, model, year, or registration details,
- diagnosis answers and session history,
- saved vehicle information,
- subscription status,
- and technical app usage information.
Your use of the Services is also governed by our Privacy Policy, which explains how your information is handled.
12. No Workshop / No Repair RelationshipUse of WrenchLogic does not create:
- a mechanic-client relationship,
- a workshop booking,
- a service contract,
- or any obligation for repair or support beyond the app’s available features.
If WrenchLogic later offers workshop or repair referrals, those services will remain subject to the terms, pricing, and responsibility of the relevant third-party provider.
13. Third-Party Services and LinksWrenchLogic may include links, tools, maps, payment providers, or third-party integrations.
We are not responsible for:
- third-party websites,
- external services,
- payment providers,
- app stores,
- repair businesses,
- or any third-party content or outcomes.
Your use of third-party services is at your own risk and subject to their own terms.
14. Intellectual PropertyAll content, branding, diagnostic structures, visual design, software, text, logos, workflows, and related materials used within WrenchLogic are owned by or licensed to WrenchLogic unless otherwise stated.
You must not:
- copy,
- reproduce,
- modify,
- reverse engineer,
- distribute,
- resell,
- or commercially exploit any part of WrenchLogic
without prior written permission.
15. Acceptable UseYou agree not to use WrenchLogic to:
- misuse, interfere with, or damage the platform,
- attempt to gain unauthorised access,
- upload harmful code or malicious content,
- use the app for unlawful, fraudulent, or abusive purposes,
- or attempt to manipulate subscription, billing, or access controls.
We may suspend or terminate access where misuse is detected.
16. Service AvailabilityWrenchLogic is provided on an “as available” basis.
We do not guarantee that the Services will always be:
- available,
- error-free,
- uninterrupted,
- secure,
- or compatible with all devices, vehicles, or use cases.
We may update, suspend, modify, or remove parts of the Services at any time without notice.
17. Limitation of LiabilityTo the maximum extent permitted by law, WrenchLogic and its owners, operators, affiliates, contractors, and contributors are not liable for any direct, indirect, incidental, special, consequential, or punitive loss or damage arising from or related to:
- use of the Services,
- reliance on diagnosis outputs,
- subscription access issues,
- vehicle faults or failures,
- repair outcomes,
- loss of data,
- business interruption,
- or third-party actions.
Where liability cannot be excluded under applicable law, it is limited to the minimum extent permitted by law.
18. Changes to These TermsWe may update these Terms from time to time.
When we do, we may revise the “Last Updated” date above.
Continued use of WrenchLogic after changes are published means you accept the updated Terms.
19. Governing LawThese Terms are governed by the laws of Queensland, Australia, unless otherwise required by applicable consumer law.
Any disputes relating to these Terms or the use of WrenchLogic will be subject to the applicable courts and legal processes of that jurisdiction.
20. ContactIf you have questions about these Terms, subscriptions, or the Services, you can contact WrenchLogic at:
Email: wrenchlogic44@gmail.com
Business Name: WrenchLogic
Location: Queensland, Australia