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iPhone app

FENR

Your Stark Varg, connected.

Live telemetry, a customizable dashboard, battery diagnostics, charging controls, and routes for your Stark Varg.

2026 Independent open-source project

FENR is an independent, open-source iPhone app built specifically for Stark Varg riders. Connect to your compatible motorcycle over Bluetooth to see live riding data, understand your battery, and keep your riding information together.

A customizable riding dashboard brings together speed, battery level, riding mode, and motorcycle status. Monitor charging, explore cell voltages, review ride history, and record maintenance. Apple Maps navigation and GPX route import help you plan your next ride.

The built-in demo lets you explore the app without an account or motorcycle. Available data and controls depend on your motorcycle and firmware; road navigation requires an internet connection and Apple Maps availability. FENR is a community project and is not affiliated with or endorsed by Stark Future.

What it does

  • Customizable dashboard with speed, battery, riding mode, and real-time Bluetooth telemetry.
  • Charging progress with maximum charging power and battery charge target controls on supported firmware.
  • Battery diagnostics with health information, temperatures, and individual cell voltages.
  • Ride history, energy-use data, and maintenance records.
  • Road navigation with Apple Maps and GPX route import.
  • Built-in demo with simulated riding, charging, and battery scenarios.

Stack

  • SwiftUI
  • Bluetooth LE
  • Apple Maps
  • Open source

Links

Screens

FENR riding dashboard for Stark Varg
Ride data and energy efficiency in FENR
Charging power and charge target controls in FENR
Battery health and temperature diagnostics in FENR
Riding mode settings in FENR
Ride history and energy use in FENR
Individual battery cell voltage details in FENR
Dashboard card customization in FENR
GPX route import and navigation in FENR
FENR charging status on the Lock Screen and Dynamic Island