AI-Powered Diagnostics for Modern Mechanics
Instant expert-level vehicle diagnostics from photos, fault codes, and VINs.
Everything you need to diagnose faster
From a single fault code to a full guided repair — see how MechNostic turns photos, codes and live data into clear, expert answers.
Describe the symptom, paste a fault code or drop in a VIN, and MechNostic reasons through it like a seasoned master tech — weighing the likely causes, ruling out the red herrings and pointing you to the fix that actually holds, rather than throwing parts at it.
No squinting at a scanner or tapping out a seventeen-character VIN by hand. Photograph the code reader, the VIN plate or the warning light on the dash and MechNostic lifts the detail straight off the image, then folds it into the diagnosis for you.
Every job sharpens it. The MechNostic Engine builds on real-world faults and the repairs that genuinely put them right, so the patterns it flags are grounded in what has worked on the ramp — not generic textbook theory.
Pair the Nostic Connect adapter over Bluetooth and tap straight into the vehicle: read and clear fault codes, watch live sensor data as it happens and capture freeze-frame snapshots — all feeding the same AI diagnosis. Workshop-grade kit that slips into your pocket.
How it works
From photo to fix in four simple steps.
Capture
Snap a photo of fault codes, VIN plates, or scanner screens.
Analyse
AI extracts data and identifies the root cause.
Fix
Get step-by-step guidance to resolve the issue.
Learn
Log outcomes to improve future diagnostics.
Compatible OBD2 readers
Nostic Connect works with most ELM327-compatible Bluetooth OBD2 adapters. The most popular and reliable are listed first.
iPhone and iPad only work with Bluetooth Low Energy (BLE) adapters — Bluetooth Classic and Wi-Fi OBD2 dongles will not connect on iOS. Android is more flexible: it works with BLE, Bluetooth Classic (SPP) and Wi-Fi OBD2 adapters, so almost any ELM327 dongle is fine.
Recommended
OBDLink CX
Bluetooth 5.1 BLE, designed for iPhone. Fast and rock-solid — our top pick.
OBDLink MX+
Premium all-rounder. Excellent on both iOS and Android.
Vgate vLinker FS
BLE adapter with great iPhone compatibility and strong value.
Vgate iCar Pro BLE 4.0
Hugely popular budget BLE dongle. Make sure it's the BLE (4.0) version for iPhone.
Veepeak OBDCheck BLE+
Reliable, affordable BLE adapter that works across iOS and Android.
Popular
BlueDriver LSB
Pro-grade consumer scan tool with a solid BLE connection.
Carista
BLE adapter sold alongside the Carista app — pairs cleanly with Nostic Connect.
Konnwei KW902 / KW903
Cheap and widely available. Choose the BLE model, not the classic version.
Viecar 4.0 BLE
Common low-cost BLE dongle; the BLE 4.0 variant works on iPhone.
ANCEL BD310
Dual standalone-display and BLE app adapter.
TOPDON TopScan
BLE adapter from a well-known workshop tool brand.
FIXD
Consumer BLE sensor; works for code reads and live data.
Also compatible
Most ELM327-compatible BLE adapters
Including generic 'OBDII' / 'ELM327 BLE' dongles, Veepeak, Nexpeak, Panlong, Kiwi, Tonwon and similar. If it's BLE and ELM327-based, it should connect.
One subscription. Every workshop.
Pricing adjusted automatically for your country. No hidden fees, cancel anytime through the App Store or Google Play.
Free
Try MechNostic with no commitment.
- 3 diagnostic jobs every 30 days
- Standard AI diagnostics
- OCR for VINs and fault codes
- eBay parts search
Pro
Everything you need on the workshop floor.
- Unlimited AI diagnostic chats
- Faster, more accurate diagnostics
- Live TSB, recall and parts lookup
- OCR for VINs and fault codes
- Common-failure knowledge base
- Saved chat history across devices
- Priority support
Pro pricing around the world
Local prices set by Apple and Google for each store.
Frequently asked questions
MechNostic supports all makes and models. Our AI is trained on a comprehensive database of vehicle diagnostic information covering cars, vans, and light commercial vehicles from all major manufacturers.
Simply take a photo of a fault code display, VIN plate, or diagnostic scanner screen. Our AI automatically extracts the relevant codes and identifiers, saving you time on manual entry.
Yes. All data is encrypted in transit and at rest. We never sell your diagnostic data to third parties. Vehicle information is stored securely and only used to improve your diagnostic experience.
MechNostic requires an internet connection to access our AI diagnostic engine and provide real-time analysis. However, your job history is cached locally for quick reference.
Our AI provides suggestions based on millions of real-world diagnostic scenarios. While no system is 100% accurate, MechNostic continuously learns from confirmed repairs to improve its recommendations.
Start diagnosing smarter today
Join mechanics who are fixing faster with AI-powered diagnostics.