NetStumbler is not available for Android but there are some alternatives with similar functionality. The best Android alternative is WiFi Analyzer - VREM, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to NetStumbler and six of them are available for Android so hopefully you can find a suitable replacement. Other interesting Android alternatives to NetStumbler are NETGEAR WiFi Analytics (Free), WiFi Map — Free Passwords (Free), PortDroid (Freemium) and Network Analyzer (Freemium).
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