NetCheck – WiFi Analyzer

What's really going on with your network — and why isn't the internet working?

NetCheck analyzes your WiFi and your internet connection and shows you exactly where the problem is. Free, no account, no subscription.

📶 WIFI SIGNAL ANALYSIS
Signal strength with a clear grade (A+ to F), frequency band detection (2.4 GHz or 5 GHz), see every WiFi network nearby.

📡 CHANNEL ANALYSIS
Channel usage at a glance, a concrete recommendation for the best router channel, spot interference sources.

⚡ SPEED & DNS
Download speed test, ping and latency, plus DNS latency — with a history of your last measurements.

🚨 INTERNET OUTAGE DIAGNOSIS
Connected to WiFi but no internet? NetCheck walks you step by step through the diagnosis and tells you whether it's your router, DNS, or your provider.

📲 GUEST WIFI QR CODE
Scan or share your WiFi password as a QR code — guests connect without typing anything.

🔒 PRIVACY & MORE
100% usable offline (except the speed test). No cloud, no personal data, no account. See devices connected to your network.

💎 AD-FREE
One-time purchase – no subscription, no hidden costs.

NetCheck is your WiFi analyzer, network scanner, and internet diagnostic tool in one app. Made by Randy Apps.