SkyVoice Alert LHA is the official companion app for Holy Micro! aviation safety devices, including SkyVoice Alert LHA 500 and SkyVoice Glassy Guide 400. The app helps pilots connect to supported devices, access device controls, manage logs, view instructional content, and perform firmware updates directly from an iPhone or iPad.

Aviation Safety at Your Fingertips

SkyVoice Alert LHA 500
• FAA-approved Take-off and Landing Height Announcer
• LiDAR-based height callouts from 500 ft to 1 ft
• LiDAR range up to 590 ft
• Repeated landing gear warnings from 560 ft until gear is down and locked
• Bluetooth or wired headset/HUD support
• User-selectable reminders for Gear, Checklist, LC GUMPS, Flaps, Speed, Clearance, Pump, Oxygen, IFR Altimeter, Top of Descent, Fuel, and Tank checks etc..

SkyVoice Glassy Guide 400
• FAA-approved height annunciator for landplanes and seaplanes
• Accurate operation over both water and land
• Radar-based range up to 400 ft
• Bluetooth or wired audio connectivity
• Up to four gear reminders
• Portable Quick Install version available with rechargeable battery
• Lightweight aircraft-grade aluminum enclosure

App Features

Connect to Your Devices
• Dedicated access for SkyVoice Alert and Glassy Guide devices
• Connect through device-specific Wi-Fi networks
• Open device web interfaces directly from the app
• Quick access to monitoring and configuration tools

Log Management
• Download device log files and raw log files
• Manage stored logs locally
• Upload logs to Holy Micro support for analysis
• Send individual files or multiple files at once

Over-the-Air (OTA) Updates
• Check for available firmware updates
• Download and validate update packages
• Install firmware updates directly from the app
• View release notes and update information before installation

Instructional Videos
• Access installation and operation guides
• Learn how to install and use SkyVoice Alert and Glassy Guide products
• Watch educational videos directly within the app

Designed for General Aviation

SkyVoice products are trusted by pilots flying a wide range of general aviation aircraft, including:
• Cessna
• Piper
• Beechcraft
• Diamond
• Mooney
• Seaplanes and other compatible aircraft

Why SkyVoice?

Visual illusions can affect altitude perception during takeoff and landing. SkyVoice devices provide precise audio callouts, landing gear reminders, and operational alerts to help improve situational awareness and support safer flying.

Stack the odds in your favor. Install SkyVoice. Fly Safely.

Note: This application is intended for use with compatible Holy Micro! SkyVoice hardware devices. Certain features require connection to a supported SkyVoice device and/or an active internet connection.