The diagnostic
cockpit for VAG
vehicles.
Read every control module, stream live engine telemetry, and decode VAG-decimal fault codes — over Bluetooth, straight to your phone.
Walks every CAN address in the VAG range.
One tap reads stored, pending and intermittent trouble codes from every ECU that answers — reassembling long multi-frame ISO-TP responses that cheaper apps drop.
Every control module discovered
Engine, transmission, ABS, airbags, HVAC, comfort, lighting, infotainment, driver assistance.
VAG-decimal + SAE codes, decoded
Priority, frequency, healing index, odometer and timestamp per fault — in plain language.
Engine-off fast-fail in ~3s
Detects a sleeping bus instead of timing out for minutes. Median scan under 30 seconds.
Real-time telemetry from the ECU.
A live dashboard streams ten readings at roughly 100ms cycles — exactly what your engine is doing, as it happens.
Ten live channels
RPM, speed, load, coolant & oil temp, throttle, fuel, control-module voltage.
Misfire & cylinder detection
Catches cylinder misfires and auto-detects the engine's cylinder count.
Everything, in one free build.
No paywalls between you and your car. Every capability below ships free, today.
One-tap Bluetooth
Auto-detects ELM327 BLE adapters, optimizes the link to 512-byte MTU, reconnects automatically.
Live dashboard
Ten engine readings streaming at ~100ms — from RPM and load to coolant and oil temp.
Full fault scan
Stored, pending and intermittent DTCs from every module, with status flags.
Service tracker
Resettable oil and service interval reminders, all on one overview screen.
VIN & odometer
Read directly from the ECU over VAG Mode 22 — copy or share in one tap.
Demo mode
A simulated drive with injected faults — explore the whole app with no hardware.
Multi-language
English and Ukrainian, auto-detected from device with manual override.
Private by design
No accounts, no cloud, no analytics — everything stays on your phone.
Bring your own adapter.
Any ELM327-compatible Bluetooth Low Energy adapter works. These are the models we've verified.
| Adapter | Bluetooth | Status |
|---|---|---|
| iCar Pro 2S Best performance | 5.3 | RECOMMENDED |
| iCar Pro 1S | 4.0 | COMPATIBLE |
| Vgate vLinker MC+ | 4.0 | COMPATIBLE |
| Generic ELM327 BLE v1.5 and newer | 4.0+ | COMPATIBLE |
Not supported: classic (non-BLE) Bluetooth · Wi-Fi-only · USB · counterfeit ELM327 v2.1
Your data never leaves
your phone.
No accounts, nothing synced, nothing tracked. The Bluetooth pairing is between your phone and the adapter — that's the whole data path.
Free forever. Pro when you want more.
Everything justOBD does today stays free. Pro adds deeper control — your free features never move behind it.
Free
AVAILABLE NOWEverything you need to read and diagnose your VAG car. No ads, no accounts, no catch.
- Full diagnostic scan, all modules
- Live engine dashboard
- Service tracker, VIN & odometer
- Demo mode & multi-language
- Private — all data on-device
Pro
Coming soonfull car.
Advanced control for enthusiasts who want to open up their car. Free features stay free.
- Long coding & module adaptations
- Security access for protected functions
- Unlock hidden vehicle features
- Guided coding presets