New in 2.2: whole-car fault-code scans, smarter tire alerts, and a fresh look with Themes. Private iCloud history — IONIQ 5, 5 N, 6, 9, EV6 & EV9.
IONIQ 5 Companion is an independent OBD-II diagnostic tool for the Hyundai IONIQ 5 and other E-GMP vehicles, with full support for the IONIQ 5, IONIQ 5 N, IONIQ 6, IONIQ 9. The Kia EV6 and EV9 are also fully supported.
The app requires the separate purchase of an ELM327-compatible BLE OBD-II adapter in order to read ECU data from your car.
CARPLAY
Two rows of live chips on the Driving tab — charge, tires, and climate — plus Power (draw and regen on one dial), Compass, AC Draw, and a per-cell Voltage Δ heatmap
Dynamic Charging and EVSE tabs, with a session timer and the charger's capabilities
LIVE DASHBOARD
State of charge, available energy, voltage, current
Power dial, Regeneration gauge, Gear indicator (P, R, N, D), and Isolation Resistance
Cell min/max temperature and per-cell voltages as a color-coded heatmap with an explainer
Tire pressures and temperatures, with per-axle warnings from your car's door placard — temperature-compensated and fully customizable
Four vent and floor air temperatures, outside and cabin temperature, humidity, motor RPM, ignition state, battery warmer, headlight and brake-light indicators
Live AC and DC charging detection, plus wall-side AC Draw while charging on AC
Session detail plots Charging Power, Pack Voltage, and battery and ambient temperature, banded by AC, DC, and battery warmer
DC fast charging: an EVSE Current chart compares requested vs. delivered, plus a supply-equipment card with the station's max power, voltage, and current (J1772 + CCS)
Live "Time to 70°F / 21°C" battery ETA for DC fast charging
HISTORY & ICLOUD
Records every drive and charge, with live State-of-Charge charts plus distance, energy, peak-power, and battery-temperature ranges
50+ signals on charts you can pinch, pan, and scrub
Optional iCloud sync keeps your history in step across iPhone, iPad, and Mac
Attach a photo, share a report card, or export any session to CSV
DIAGNOSTICS
Enhanced DTC Scan sweeps the whole vehicle bus, names every module that responds, and reads its stored fault codes
Connection Report, ICCU Information, J1979 Scanner, ECU Finder, and DID Range — all with CSV and image sharing
CONNECTION & SETTINGS
Auto-Connect and manual connection controls -- to help make co-existence with other OBD-II apps easier
Themes recolor the whole app in Light and Dark, over a soft aurora backdrop
Power units (kW, HP, PS) and Efficiency units (mi/kWh, km/kWh, kWh/100km, Wh/km, Wh/mi)
PRIVACY BY DESIGN
The app does not collect, transmit, or sell personal data. No analytics, ads, or accounts. Vehicle data stays on your device and your private iCloud. Logs are exported only when you tap Share. Full privacy policy at https://www.theburl.com/ioniq-app/privacy.html
REQUIREMENTS
ELM327-compatible BLE OBD-II adapter — see https://www.theburl.com/ioniq-app/support.html for tested adapters.
Full support: Hyundai IONIQ 5 and IONIQ 5 N, Kia EV6 and EV9, Hyundai IONIQ 6, and IONIQ 9. Signal coverage varies by model, year, and trim.
NOT AFFILIATED
IONIQ 5 Companion is not affiliated with, endorsed by, or sponsored by Hyundai Motor Company or Kia Corporation. IONIQ is a trademark of Hyundai Motor Company; EV6 and EV9 are trademarks of Kia Corporation. This independent tool reads your own vehicle's data using open OBD-II and UDS standards (ISO 15031, ISO 14229).
I normally do not write reviews but I figured I must here. This is a stable and well coded display of ODB2 data specific to EV. Kudos to the dev.
bySm*****, 2026-06-21
2025 Ioniq 5 SEL
As advertised, this app gives you all the crunchy details the car hides by default. Very cool to see exactly how the car performs while driving and charging, and the history feature is really nice as well. MyHyundai only saves stats for the last 4 drives, but this app has no such limit. It’s also nice to see specific details for my ICCU unit, and high voltage cell deltas to assess any issues. Highly recommended.