apps / 1379926231
GPS Anti Spoof Pro
sextant sight analyzer
Frank Reed · Navigation · $19.99 · US storefront
- rating
- 5.0 ★
- ratings
- 7
- updated
- Jun 4, 2026
- released
- Jun 11, 2019
v1.40
visible word pool · 7 words
title 18/30 chars · subtitle 22/30 chars
App Store search indexes the title and subtitle together with the hidden 100-character keyword field as one combined pool: any phrase assembled from those words can rank. These are the words of GPS Anti Spoof Pro's pool that are public — the keyword field is not exposed by any API.
from the listing
Instantly compare observed celestial navigation altitudes with high precision, live calculated altitudes. Shoot the Sun, tap pause in the app, and get instant feedback. Standard version includes data for the Sun, Venus, and two stars. The Pro version of the app is for serious navigation use and includes data for the Sun, Moon, Venus, Mars, Jupiter, Saturn, the 57 standard navigational stars, plus Polaris. Both versions function off-network and at sea however the standard…
latest US reviews
★★★★★
Delivers on claims!
Frank is a genius for developing this app. I’m a novice so checking my sights against the app is a godsend! Also, doesn’t collect any data from my phone or the app. Appreciate the privacy. I do wish I could turn off all features which use internet connectivity when present.
— Jib Sheet
★★★★★
Works as Advertised!!
This app is fantastic for checking your GPS. Excellent for educational purposes to check celestial sights. I highly recommend this app.
— CGrosby
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