evmetrics
Deep diagnostics
for your EV
Live battery telemetry, AI-powered fault analysis, charging graphs and professional reports — for Jaguar, Land Rover and popular electric vehicles.
Built for drivers and professionals
The iOS and iPad app is designed for EV owners who want real insights without a dealer visit. The Mac app with wired USB is built for workshops and fleet managers who need sustained, high-throughput sessions.
iPhone & iPad
For EV owners & enthusiastsConnect wirelessly via a £20 Bluetooth OBD dongle. Check your battery's state of health, watch a live charging curve, decode a warning light with AI — all from your pocket.
- Battery state of health and cell voltages
- Live charging graph (power vs SoC)
- AI-powered fault code analysis
- Automatic journey logging with route maps
- Pre-purchase vehicle inspection
- Climate, TPMS and drivetrain data
- Shareable diagnostic reports
Mac & Wired USB
For workshops, specialists & fleetsWired ELM327 USB adapters give rock-solid throughput for multi-hour sessions. Full vehicle scans, Mode $06 on-board monitor tests and printable reports that match what technicians expect.
- Wired USB — no dropped connections mid-scan
- Full vehicle scan across all mapped ECUs
- Mode $06 on-board monitor readiness
- CAN bus traffic monitor per protocol
- Multi-ECU header switching (7E0 / 7E1 / 795 etc.)
- Workshop checklists — service, MOT, staged diagnostics
- Fleet cost tracking with renewal reminders
- HTML reports ready to share with customers
Everything your vehicle is hiding
Standard OBD2 apps read emission PIDs. EVMetricsOBD uses manufacturer UDS Service 22 commands to access the data the dealer sees.
HV Battery Deep Scan
Pack voltage, current, state of charge, state of health, individual cell voltages and battery temperatures — from the actual BMS, not OBD gateway proxies.
Charging Graph
Real-time power vs SoC curve plotted as you charge. See exactly where your battery's taper begins and compare sessions over time.
AI Fault Analysis
Every DTC is sent to Gemini AI and returned with severity, likely causes, symptoms, recommended actions and safe-to-drive guidance — in seconds.
Diagnostic Reports
Complete HTML reports covering all OBD modes ($01–$09): freeze frames, O2 sensors, IUPR counters, EV battery sections and NHTSA vehicle info.
Full Vehicle Scanner
Sweep every mapped ECU in the vehicle — BECM, HVAC, TPMS, TCM, E-Diff and more — and see which modules respond and which are silent.
Live Sensor Dashboard
Customisable live view of all visible sensors: temperatures, pressures, voltages, speeds. Sensor categories are specific to each vehicle template.
CAN Bus Monitor
Track TX/RX counters per CAN bus in real time. See which protocol is active, how many frames are positive, and switch buses without disconnecting.
Mode $06 / EOBD Tests
On-board monitor results for every supported test ID — the same readiness data emissions testers rely on. Spot failing monitors before an MOT.
VIN Decode
NHTSA VIN lookup resolves make, model, year and powertrain automatically. Vehicle identity is embedded in every diagnostic report.
iCloud Cross-Device Sync
Seamlessly sync your Garage vehicle records, Workshop templates, active jobs, and Fleet costs across iPhone, iPad, and Mac.
Known Conditions Database
Contextual alerts suppress false positives by cross-referencing OEM campaigns. Stop panicking over a 72% SoC cap if it's a known manufacturer recall.
Vehicle Data API Upcoming
MOT history, DVLA tax status, safety recalls and cross-border vehicle records — resolved from your registration plate, layered on top of live OBD data.
Multi-Jurisdiction Lookups Upcoming
UK, Netherlands, Germany, France and US vehicle records via government and commercial APIs with a shared cache layer and graceful fallback.
Reverse Engineering Tools
Developer mode with PID scanner, raw AT command console and CAN broadcast capture. Contribute new PIDs to the community template library.
Journeys New
Every drive is archived automatically — the live power curve, energy used, regen recovered, distance and duration, with the route on a map. Synced via iCloud and exportable as a .evmjourney file.
Workshop New
Reusable checklist templates — Full Service, MOT Check, a cost-ordered Engine Diagnostic — applied per vehicle with red / amber / green on every item. Build your own and share as .evmwt files.
Fleet New
Track every vehicle's costs — expenses plus scheduled, recurring events — rolled into totals spent, what's due in the next 12 months and a projected annual run-rate. Exportable as .evmfleet.
Three ways to connect
Any ELM327-compatible adapter works. No proprietary hardware required.
Bluetooth LE
Default. Pairs instantly with any ELM327 BLE dongle. Works on iPhone, iPad and Mac.
USB Serial
Wired FTDI/CP210x/CH340 adapters. Best for sustained workshop sessions on Mac. Also supported on iPhone via Lightning/USB-C.
Wi-Fi
TCP socket connection to Wi-Fi ELM327 dongles. Useful where BLE range is insufficient.
15 vehicle platforms
JLR I-Pace and XF available now. Hyundai E-GMP, VW MEB, Ford EV, Stellantis, Volvo CMA and more coming soon.
How people use it
From checking battery health before buying a used EV to full workshop diagnostic sessions.
See use cases →