Observed arrival · 2026-11-01
Deya: Navigation When GPS Lies
Deya is an Android offline navigator that combines phone motion sensors, the rear camera, and OpenStreetMap data to estimate a driver’s position when GPS is jammed or spoofed.
- For
- Android drivers navigating where GPS is jammed or spoofed
- Worth noticing
- The FAQ says position can drift on long straight roads and recover after a turn or genuine GPS returns.
Field notes
The page describes a four-step setup: download a city map while online, mount the phone so its rear camera faces the road, calibrate with GPS for a minute or two, then drive. It says camera frames are processed in memory and immediately discarded, with no accounts, ads, or analytics. The FAQ sets an important limit: location can drift on long straight roads, and the app is currently installed from a site-hosted APK; Google Play is described as forthcoming.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
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