# barbeau/gpstest

The #1 open-source Android GNSS/GPS test program

Repository: https://github.com/barbeau/gpstest
Canonical: https://ross.abutalabs.com/products/gpstest
Language: Kotlin
License: Apache-2.0
License Family: permissive
Last push: 2026-08-17T20:13:43+00:00

## Health v2 (maintenance only)
Score: 67/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 98, release rhythm 8, longevity 100
- inputs: {"age_days": 5124, "days_push": 16, "days_rel": 613, "gap_med": null, "n_releases_24m": 1}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2375, forks 421 (observed 2026-08-28T04:06:41.978892+00:00)

## What it is
GPSTest is the leading open-source Android application for testing GNSS/GPS receivers. It displays real-time satellite information for GPS, GLONASS, Galileo, BeiDou, QZSS, NavIC, and SBAS systems, including dual-frequency support.

## Use cases
- check which GPS satellites my Android phone can see
- test dual-frequency GNSS support on a device
- diagnose weak GPS signal or poor location accuracy
- compare Galileo vs GPS reception
- view SBAS augmentation status like WAAS and EGNOS
- verify BeiDou and NavIC satellite visibility
- troubleshoot location issues on Android

## When to choose
- you need to inspect raw GNSS satellite data on Android
- you want an open-source, ad-free GPS diagnostic tool
- you're testing dual-frequency or multi-constellation GNSS hardware
- you're a developer validating location behavior on Android devices

## When to avoid
- you need GPS testing on iOS or desktop platforms
- you want turn-by-turn navigation rather than diagnostics
- you need to spoof or mock GPS locations

## Facets
- artifact type: application
- maturity: active
- function: developer-tools, monitoring, geospatial
- domain: android-tools, developer-tools, hardware
- platform: -
- tags: gnss, gps, satellite-navigation, dual-frequency, kotlin, testing-app, android

## Member repositories
- barbeau/gpstest (main) score 67

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:41.978892+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:35:02.822769+00:00, confidence not recorded.
  - readme: https://github.com/barbeau/gpstest (fetched 2026-08-28T04:06:41.978892+00:00, sha 555769615b2a)
- Data as of 2026-08-30T08:39:29.467469+00:00.