GETTING STARTED
Do I need special hardware or an OBD2 adapter?+
No. EngineIQ Diagnostics works without any hardware — enter the vehicle details, the symptoms and any trouble codes you already have, and Tina AI does the analysis. If you connect a Bluetooth OBD2 adapter, Tina can also pull live data straight from your vehicle and run a guided drive test, which sharpens the diagnosis considerably.
How is EngineIQ Diagnostics different from a code reader?+
A code reader tells you a code like P0301 exists. EngineIQ Diagnostics takes that code plus the symptoms and vehicle details and ranks the actual likely causes by probability — then builds a step-by-step test plan so you confirm the fault before replacing any parts.
Who is EngineIQ Diagnostics built for?+
Professional technicians, mobile mechanics, repair shops, fleet managers and DIY vehicle owners. Pro mode goes deep for technicians; guided mode keeps everything in plain English for first-timers.
What devices does it run on?+
iPhone, Android phones and tablets, and desktop. Your garage, scans, reports and history sync across every device you sign in on.
DIAGNOSING
What is Tina AI?+
Tina is your conversational diagnostic assistant. Talk or type to her at any point in a job — she interprets trouble codes, explains faults in plain English, builds diagnostic plans, recommends tests with expected readings, and helps you write the report.
How accurate are the ranked causes?+
EngineIQ Diagnostics weighs the symptoms, codes, and vehicle specifics to estimate probability for each likely fault. It's a decision-support tool that points you to the most likely cause first — you always confirm the actual failure with the guided tests before repairing.
Can I document my test results?+
Yes. Every procedure you run can be logged with the actual result against the expected value, plus notes and photos, so you build a complete, defensible diagnostic record for each vehicle.
Can I create reports and invoices?+
Yes. Any session can be turned into a clean professional diagnostic report or an itemized invoice in seconds, then emailed to a customer, printed, or saved to the cloud.
BILLING & ACCOUNT
Is there a free trial?+
No — there's no trial, because the Free plan never expires. It includes code lookups, ranked likely causes and a recommended first test, with no credit card. Upgrade to Pro ($4.99/mo or $39.99/yr) or Lifetime ($79.99 one-time) whenever you want the full guided diagnostics.
What's the difference between monthly, yearly and lifetime?+
The monthly Pro plan is $4.99/mo. The yearly Pro plan is $39.99/year — that's the equivalent of $3.33/mo, saving you 33% compared to paying monthly. Lifetime is a single $79.99 payment for Pro access forever, no renewals.
Can I cancel anytime?+
Yes. Cancel anytime from your account settings — or through Apple App Store or Google Play depending on where you subscribed. You keep access through the end of your current billing period.
How do I manage my subscription?+
Subscriptions can be managed through the platform you used to subscribe: Apple App Store, Google Play, or directly through your EngineIQ Diagnostics account. Refund handling may depend on where the subscription was purchased.
I was charged but can't access Pro features — what do I do?+
Contact us at support@engineiq360.com with your full name, the email on your account, the platform you subscribed through, the charge date, and a screenshot of your receipt. We'll get it sorted quickly.