Free · iOS & Android
Professional GNSS corrections diagnostics. Anywhere you stand
The simplest way to validate and troubleshoot NTRIP connections in the field. No laptop. No modem. No guessing.
Downloads
130 000 +
Rating
4.8
Sound familiar?
Your rover can't get a fix.
You don't know why.
The caster responds.
The rover won’t fix.
Missing message types, signal interference, an overloaded VRS engine. The root cause stays hidden until you see inside the stream.
Field surveyors · Device operators
It worked on the bench.
It’s broken in the field.
Coverage gaps and service zone boundaries don't show up until you're already there. With no equipment, and no time for the lengthy trial-and-error approach.
RTK support engineers · Service providers
The solution
Full NTRIP diagnostics.
In your pocket.
NTRIP Checker doesn't just check the connection — it helps you understand it. Message statistics, satellite counts, and signal quality, all in one place.
Connection verification
Confirm caster host, credentials, and mountpoint the moment you connect.
Service Availability
Verify stream availability for your location. Test using your current position or any set coordinates worldwide.
RTCM Message Types
Every message ID decoded with live counts and descriptions. See exactly what’s inside the stream.
Satellite signal quality
An overview of tracked satellites by constellation, complete with active frequencies and signal strength.
Base station distance
Base station position plotted on the map to instantly confirm your baseline is within operational limits.
RTCM message statistics
Live message counts, last arrival times, and update intervals. Evaluate stream reliability at a glance.
How it works
Five steps from uncertainty to clarity.
Step 1 of 5: Connect
Why trust it
Built on proven
GNSS foundations.
NTRIP Checker runs on RTKLIB — the open-source GNSS processing engine trusted by researchers, engineers and developers worldwide. Professional-grade diagnostics, zero cost.
- 130,000+
- Downloads on App Store and Google Play
- 4.8 ★
- Average rating from GNSS professionals
- Free
- No account, no subscription, no catch.
What the GNSS community says
“Great app - I use it for checking some RTK bases I help with. Drivers use it in the field if they have an issue. Nice and simple, clean interface, works great. Only downside is having to register first.”
“Excellent app for monitoring the base station's activity before you go out for measurements with your rover.”
“Smooth, fast and reliable. I've always faced hard times checking on the ntrip before discovering this app.”
“The best NTRIP connection checker for mobile devices!”
“Great app for simple testing purposes. Thank you for being ad-free and free!”
“Great app for testing NTRIP connections.”
“Super nice! Thank you for the upgrades. A very useful, go-to application”
“Great helper in everyday work for technical support engineers for surveyors.”
Built by
Bespoke software for GNSS companies.
Navmatix is a boutique full-stack software engineering and managed infrastructure agency. We build and operate digital products for GNSS vendors and solution providers worldwide — from real-time correction networks to field tools like NTRIP Checker.
See navmatix.comAlso from Navmatix
The professional platform for NTRIP service management, subscription billing, reseller hierarchies, and device monitoring — built for RTK network operators at every scale.
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Free · No account needed · iOS & Android