RF Analyzer (FOSS)
RF Analyzer (FOSS) is a free, open-source education app for Android. Analyze RF signals on Android with HackRF, RTL-SDR, Airspy and HydraSDR. It has 1,099 GitHub stars and is released under the GPL-2.0-or-later license, and you can install it from F-Droid and Google Play.
About RF Analyzer (FOSS)
RF Analyzer turns your Android device into a real-time spectrum analyzer for Software Defined Radio (SDR). Visualize and listen to radio signals around you - from amateur radio to broadcast signals and beyond. Whether you're a curious beginner or a seasoned ham, RF Analyzer offers a hands-on, interactive way to explore radio signals. FEATURES - Works with HackRF, RTL-SDR, Airspy, Airspy HF, HydraSDR or pre-recorded IQ files - View live spectrum (FFT) and waterfall plots - Demodulate AM, FM, SSB, and CW signals - Record raw IQ samples for offline analysis - A responsive and modern Material Design interface - Scroll, zoom, and tune through the bands - Built-in context-aware help and a full…
Privacy and F-Droid
F-Droid builds RF Analyzer (FOSS) from its published source code and flags anti-features such as ads, tracking or reliance on non-free services.
No anti-features flagged on the latest F-Droid build.
Screenshots
Screenshots from the app's F-Droid listing.
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What is RF Analyzer (FOSS)?
RF Analyzer (FOSS) is a free, open-source education app for Android. Analyze RF signals on Android with HackRF, RTL-SDR, Airspy and HydraSDR. It has 1,099 GitHub stars and is released under the GPL-2.0-or-later license, and you can install it from F-Droid and Google Play.
Is RF Analyzer (FOSS) free and open source?
Yes. RF Analyzer (FOSS)'s source code is public on GitHub under the GPL-2.0-or-later license, which is OSI-approved or FSF-free. F-Droid, which builds it from source, flags no anti-features such as ads or tracking on its latest build.
How do I install RF Analyzer (FOSS)?
You can install RF Analyzer (FOSS) from F-Droid (package com.mantz_it.rfanalyzer) and from Google Play; the links are on this page.
Is RF Analyzer (FOSS) still maintained?
The repository's most recent commit was on Apr 28, 2026. Its F-Droid listing was last updated on Apr 29, 2026. appsgit only lists apps whose repository had a commit in the last six months.