---
title: "GPS Anti Spoof — App Overview"
url: https://marlvel.ai/apps/gps-anti-spoof
category: Education
developer: Frank Reed
platforms: ios, android
rating: 3.6 (41 ratings)
pricing: freemium
report_level: overview
generated: 2026-04-24
last_verified: "2026-04-24T00:58:32.256Z"
---

<!-- SECTION: Key Insight -->
> **Key Insight:** The app provides a digital, automated alternative to traditional celestial navigation tables for verifying GPS accuracy in remote environments.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Education |
| Rating | 3.6 ★ (41) |
| Pricing | freemium |
| Platforms | iOS, Android |
| Latest Version (iOS) | 1.0.39 |
| Latest Version (Android) | 1.0.39 |
| Developer | Frank Reed |

<!-- SECTION: Summary -->
## What is GPS Anti Spoof?

GPS Anti Spoof is a celestial navigation tool that validates GPS positioning by comparing observed altitudes against live, high-precision calculations. It automates complex navigational corrections, eliminating the need for manual tables or paperwork for mariners and navigators.

<!-- SECTION: Key Features -->
## Key Features

- **Automated Corrections**: Automatically calculates index error, system time, dip of the horizon, refraction, and atmospheric adjustments.
- **Offline Functionality**: Operates without network access, with the Pro version supporting extended use for weeks at sea.
- **Celestial Data Support**: Provides altitude calculations for the Sun, Moon, Venus, Mars, Jupiter, Saturn, and 57 standard navigational stars.

<!-- SECTION: Target Audience -->
## Who is it for?

Professional and recreational navigators requiring reliable position verification at sea or on land.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/gps-anti-spoof/id1467017105?uo=4)
- [Google Play](https://play.google.com/store/apps/details?id=com.clockwk.GPSAntiSpoof&hl=en&gl=us)
- [Full Intelligence Report](https://marlvel.ai/apps/gps-anti-spoof)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/apps/gps-anti-spoof).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*