Stop guessing. Start diagnosing.
EngineIQ Diagnostic is an AI-powered automotive diagnostic app built to help drivers, DIYers, mobile mechanics, and technicians find problems — not just replace parts.
Most code readers stop at the trouble code. EngineIQ helps you go further.
Enter your vehicle symptoms, diagnostic trouble codes, freeze-frame data, scan notes, repair observations, and test results. EngineIQ Diagnostic analyzes the information and helps rank the most likely problems from most probable to least probable, giving you a smarter path forward before you waste money on random parts.
Whether you are dealing with a check engine light, drivability issue, no-start condition, sensor fault, misfire, fuel problem, electrical concern, or confusing scan data, EngineIQ helps organize the diagnostic process so you know what to check next.
EngineIQ Diagnostic helps you:
• Rank likely causes based on the information you enter
• Follow a step-by-step troubleshooting workflow
• Avoid guessing from codes alone
• Reduce random parts swapping
• Organize symptoms, notes, reports, estimates, and invoices
• Build a clearer diagnostic path before making repair decisions
• Work smarter as a DIYer, driver, mobile mechanic, or technician
EngineIQ is not just another scanner app. It is designed to help you think through the problem, understand possible causes, and follow a structured workflow toward the real issue.
Codes do not always tell the whole story. A DTC trouble code may point you in a direction, but it does not automatically tell you which part failed. EngineIQ Diagnostic helps you combine codes, symptoms, data, and observations into a ranked diagnostic approach.
No more guessing.
No more throwing parts at the car.
No more wondering what to test next.
Start with EngineIQ Free — connect your OBD-II adapter, read and clear codes, and diagnose your first vehicle at no cost. When you're ready for more, EngineIQ Pro unlocks unlimited vehicles, the Tina Diagnostic Assistant, Drive-Test Diagnostics, and the complete diagnostic toolbox — starting at just $4.99/month, or save with $39.99/year. Prefer to pay once? Get EngineIQ Pro Lifetime for $79.99 — one payment, no subscription, diagnose for life.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
EngineIQ Diagnostic
Stop Guessing. Start Diagnosing.
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What's New (2.0.6):
Tina now keeps up with your latest conversations, so she stays focused on the vehicle you're working on and doesn't pull in details from older jobs. Forgot your password? You can now reset it right from the login screen with a code sent to your email. We added a Contact Support button in Settings so you can reach us directly, and moved Terms, Privacy and account options there for easier access. This update also includes stability and memory improvements under the hood for a smoother experience.
