Orastra vs GPS Toolkit

Orastra is an offline celestial navigation aid for mariners, students, and anyone learning practical sight reduction workflows. Plan and review observations, work from a dead reckoning reference, inspect almanac material, and plot celestial fixes on a single map-based interface. Orastra is designed to keep celestial reduction separate from GPS, so any GPS position shown in the app remains a reference overlay only and is not part of the reduction itself. Features: Offline celestial navigation workflow Dead reckoning reference and running-fix support Map-based plotting for DR, celestial fixes, and reference GPS Almanac access and onboard reference material Sky guide and time tools for observation planning Logbook for saving and reviewing fixes Navigation aid only. Results depend on observation quality, timing, and correct operational use. All inputs, outputs, and navigational decisions must be independently verified.

GPS Toolkit – GNSS turns your phone into a pro-grade GNSS instrument. Whether you're hiking off-trail, sailing offshore, surveying a job site, or simply curious about the satellites overhead, GPS Toolkit gives you the data professionals need — without the bloat, ads, or accounts. — LIVE GNSS DATA — • Every visible satellite from every constellation: GPS, GLONASS, Galileo, BeiDou, QZSS • Sky plot with azimuth and elevation • Signal-to-noise bars per satellite • Real-time fix quality, HDOP, accuracy — PRECISE POSITION — • Five coordinate formats: Decimal Degrees, DMS, DDM, UTM, MGRS • Altitude (GNSS + barometer when available) • Speed, course, magnetic heading • Configurable units: metric, imperial, or nautical — MAPS & TRACKS — • OpenStreetMap with tile caching for limited connectivity • Record tracks with one tap, in foreground or background • Import and export GPX (industry standard, compatible with every GPS tool) • Waypoints with categories and custom labels — NAVIGATION — • Bearing and distance to any waypoint • Proximity alerts with configurable threshold and sound • True magnetic compass, GPS-independent — TOOLS THE PROS USE — • Geodesic calculator: Vincenty-precision distance, midpoint, projection • Background tracking continues with the screen off • Live Activities on the Lock Screen and Dynamic Island • Available in English, French, Spanish, German, Italian, Portuguese, Dutch, Japanese — PRIVACY FIRST — • Everything stays on your device • No account, no sign-up, no tracking • No ads, no in-app purchases • Built on open, audited geodesic libraries Built by an outdoor user who got tired of bloated GPS apps. If you want the GNSS Swiss Army knife on your smartphone, this is it. Note: GNSS accuracy depends on your device's hardware, sky visibility, and environment. Indoor use and dense urban canyons will degrade fix quality on any GPS app.