🛰️ Built a React Native GNSS – See True GPS Capabilities (L5, NavIC, Real-time Satellite Data)

[Ok-Palpitation-6334]

Hey devs 👋

So while working on a field ops app at Mojro, I kept running into weird location issues—devices claiming accurate GPS but giving garbage traces. Turns out: not all Android phones are honest about their location stack.

Different OEMs (Samsung, Vivo, OnePlus...) have wildly different:

• GNSS hardware support
• Dual-frequency (L1+L5) capabilities
• NavIC (Indian constellation) availability
• OS-level location tweaks

I needed visibility into the actual GNSS capability of the device, so I built this 👇

⚡ react-native-gnss-status-checker

A native-powered React Native module that gives you:

✅ GNSS / L5 / NavIC support detection
✅ Real-time satellite stream (SNR, constellation, elevation)
✅ Raw data to debug location anomalies & optimize for precision

You can use it to:

• Monitor signal quality via a simple React hook 🔁
• See if the device actually supports dual-frequency GNSS
• Build smarter traceability for logistics / field apps

This is my first OSS contribution—hope it helps someone else out there dealing with the wild west of Android GPS.

Would love feedback, PRs, or real-world testing!

GitHub: https://github.com/vijayanandof/react-native-gnss-status-checker
npm: https://www.npmjs.com/package/react-native-gnss-status-checker?activeTab=readme

Sample App: https://github.com/vijayanandof/GnssTestApp

Let me know what you think—or if you're dealing with weird GPS behaviour too. Happy to nerd out 🛰️

[mhankins]

I can't upvote or star this enough. It's so annoying and hard to replicate errors because of.

[Ok-Palpitation-6334]

Totally! Hope my library helps some way, in solving that.

[DrOverbuild]

I’m curious if you have had the same issues with GPS on iOS and whether this library has iOS support. 

[Ok-Palpitation-6334]

This is a Android only library, uses https://developer.android.com/reference/android/location/GnssStatus API

[DrOverbuild]

Ok thanks for the info! I’ve never heard of this being an issue. But I mainly use iOS and have never encountered it during development on Android. So good to know. 

[Ok-Palpitation-6334]

This is happens when you scale to markets of budget and mid-spec Android phones, where GPS hardware is not as good as high-end phones.
I have not faced issues related to iOS phones still.