Spyglass

Spyglass is a must-have offline GPS navigation app for outdoor enthusiasts, off-road adventurers, and anyone who loves exploring beyond the beaten path. It’s like having a high-tech survival toolkit right in your pocket—no internet connection required. Whether you're hiking, sailing, or just navigating unfamiliar terrain, Spyglass delivers precision and reliability when it matters most.

Compass & Gyrocompass
Spyglass offers an incredibly accurate digital compass with advanced calibration modes. The augmented reality overlay makes it feel like you’re holding a professional-grade instrument, not just using a phone app. It’s responsive, trustworthy, and perfect for orienteering or when traditional compasses fall short.

Finder, Tracker & AR Navigation
Save custom locations, track moving targets, and navigate using intuitive AR arrows overlaid on your camera view or maps. I’ve used it to mark hidden trailheads and find my way back effortlessly—even in thick fog or at night. The real-time updates on distance, elevation, and ETA are game-changers.

GPS, Speedometer & Altimeter
Spyglass provides detailed location data, including altitude, speed, and coordinates in multiple formats. Whether you're climbing a mountain or sailing the high seas, having access to vertical speed and customizable units (metric, imperial, nautical) adds a layer of confidence to every journey.

Offline Maps
Download high-resolution maps optimized for retina displays and use them completely offline. Plan routes, measure distances, and switch between map styles depending on your activity—whether it’s topographic for hiking or satellite view for scouting areas.

Astronomical Tracking
One of the most unique features is the ability to track the Sun, Moon, and Polaris with arc-second precision. I’ve used it for stargazing and as a backup for compass calibration—it’s both educational and practical for celestial navigation.

Optical Tools: Rangefinder, Sextant & Inclinometer
Measure distances, angles, and heights with tools like the rangefinder (which works like a sniper scope) and the sextant. It’s surprisingly fun to use for estimating the height of a tree or the width of a river before crossing.

Camera with Data Overlay
Take photos tagged with GPS coordinates, directional bearings, and altitude. It’s perfect for documenting trips or sharing precise locations with others. Every picture tells a story—and Spyglass ensures you never forget the details.

Android Release Note
The Android version consolidates features into one free app with a premium unlock. While some iOS-specific features are still in development, the core functionality is robust and reliable. The developers actively encourage feedback and bug reports to refine the experience.

Spyglass excels in versatility and precision, though some advanced tools may require patience to master. The augmented reality navigation and offline capabilities make it ideal for hikers, sailors, pilots, and adventurers who need dependable tools without relying on cellular service. If you love the outdoors and value preparation, Spyglass is well worth the download.