ELRS Mobile vs Drone Flight Time & Range

ExpressLRS Mobile is the modern, mobile-first companion application for your ExpressLRS ecosystem. Built to simplify the management, configuration, and flashing of ExpressLRS receivers and transmitters, the app allows you to handle everything directly from your phone—no USB cables, no Python environments, and no PC required. Key Features 100% Offline Flashing: Prepare for the field before you leave. Our built-in Firmware Manager allows you to cache complete releases, letting you dynamically assemble and flash firmware targets even in remote locations with zero cellular service. Mobile-First Workflow: Connect directly to your hardware's built-in Wi-Fi hotspot. The app automatically ensures your mobile device stays connected to the ELRS hotspot, even when the OS realizes it lacks internet access. Device Discovery & Configurator: Instantly find your devices via mDNS. View live hardware status, configure PWM pins, adjust Model Match, or access the native ELRS Web UI through an embedded viewer. Smart Hardware Resolution: An intuitive cascading selection system (Device Type -> Vendor -> Frequency ->Target) ensures you always build and flash the correct binary for your specific hardware. Firmware 3.x & 4.x Ready: Full support for the latest ExpressLRS ecosystems. Compatibility Supports a wide range of Wi-Fi capable ExpressLRS hardware, including: RadioMaster: Nomad, Pocket, XR1/XR4 Dual Band, and more. BETAFPV: SuperP, Nano, and Micro series. HappyModel: EP / EP Dual and specialized targets. Platform Support: ESP8285, ESP32, ESP32-C3, and ESP32-S3 targets. Community & Support ExpressLRS Mobile is an independent, community-driven tool. We are active on the official ExpressLRS Discord and maintain an open-source repository on GitHub for bug reports and feature requests. Note: This is an independent tool and is not officially affiliated with ExpressLRS LLC. "ExpressLRS" is a trademark of ExpressLRS LLC.

The drone pilot's pre-flight endurance planner — flight time, safe range and a clear GO / NO-GO verdict before you take off. Enter your pack data the way your spec sheet lists it (Wh + W, Ah + V + W, or Ah + A), set the usable battery share (the conservative 80% convention by default) and pick your reserve. Read the safe flight time in minutes, the safe range in km — one-way or out & back with the turn-around point — and a reserve verdict against the ≥25% operator standard. A pre-flight summary lists every assumption, ready to double-check at the field. PRO • Payload planning: add the payload's extra power draw and see the real cost in minutes and km • Wind planning: head- or tailwind on the outbound leg, return leg flipped automatically, legs computed separately • Multiple drone profiles — keep every aircraft one tap away • Save flight plans to history • Share clean PDF flight-plan reports Free tier stays honest: one drone profile, full endurance and range math, plain-text share. Built for the field: big steppers, huge results, sunlight-readable Outdoor Bright mode. Everything stays on your phone — fully offline, no account, no tracking. Results are planning estimates — always verify against manufacturer data and your local aviation rules. PRO UNLOCKS: wind & payload planning, multiple drone profiles, calculation history and PDF flight reports. Available as an auto-renewable subscription (monthly or yearly) or a one-time Lifetime purchase. ——— Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://hdappstudio.com/droneflight/privacy/