About RF Analyzer
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...
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
- Comprehensive Bookmark Manager for Stations (Frequencies) and Bands
- Download and Synchronize EiBi Shortwave Radio Database, POTA & SOTA Spots
- A responsive and modern Material Design interface
- Scroll, zoom, and tune through the bands
- Built-in context-aware help and a full offline in-app manual
PRICING
You can try all features for free within the 60 minutes test period (only actual analyzer usage counts - so enough time to test out all features with all your devices).
If you like it, a one-time in-app purchase unlocks the full version - no subscriptions, no accounts, no ads.
This app is a hobby project, built with passion and countless hours of work. Supporting the app helps me continue developing and improving it. Thank you! 🙏
REQUIREMENTS
- Android phone or tablet (with USB OTG support)
- Supported SDR hardware (HackRF, RTL-SDR, Airspy, Airspy HF+ or HydraSDR)
- Note: RTL-SDR Blog v4 and RTL-SDR Direct Sampling are fully supported.
- USB OTG adapter (USB-A female to USB-C for modern phones)
- This is not necessary for SDRs with USB-C connector (e.g. the HydraSDR)
LEARN MORE
Want to go deeper? The full user manual is available with signal identification tips, ham radio basics, and more: https://demantz.github.io/RFAnalyzer/
Have fun exploring, learning, and listening to radio signals :)
73!
- Dennis (DM4NTZ), Heidelberg, Germany
LICENSE
This application is released under the GNU General Public License v2. It is free software and the source code is available on GitHub.
LEGAL ISSUES
Please note that I am not responsible for any legal issues caused by the usage of this application. Be responsible and comply with your local law!
Previous Versions
Here you can find the changelog of RF Analyzer since it was posted on our website on 2016-12-29 00:08:17.
The latest version is 2.2.1 and it was updated on 2026-06-22 12:14:42. See below the changes in each version.
RF Analyzer version 2.2.1
Updated At: 2026-04-25
Changes: - FFT Processing Pipeline Improvement
- Select FFT FPS from Display Tab
- Increased max. FFT size to 131072
- Crash-/Bugfixes
RF Analyzer version 2.2
Updated At: 2026-03-15
Changes: Version 2.2:
- Station & Band Bookmarks:
- Import from SDR#, SDR++ and legacy RF Analyzer 1.13 lists
- Online station lists: EiBi, POTA & SOTA Spots
- Band Plans: Amateur Radio, ISM, Maritime and Air Bands
- Support for Airspy HF+ SDR
- RTL-SDR Direct Sampling Support
- Switched from hackrf_android to libhackrf v0.10.0
- Upgraded to libhydrasdr 1.1.1
- Low Performance Mode Switch: Reduce Filter Quality to run smoother on older devices
- Bug Fixes (Device Crashes and Freezes)
RF Analyzer version 2.1.1
Updated At: 2025-10-20
Changes: RF Analyzer Version 2.1
- Version 2.1.1 fixes AM demodulation bug (was not working) and crashes
- Support for Airspy SDR
- Support for HydraSDR RFOne SDR
- Added Rational Resampler: Demodulation of arbitrary sample rates is now possible
- Switched audio output sample rate from 31250 Hz to 48000 Hz
- Automatically disable any Frequency restrictions when RTL-SDR Blog v4 is connected
- Multiple Bug fixes for app crashes and freezes
RF Analyzer version 2.0.2
Updated At: 2025-08-21
Changes: RF Analyzer 2.0 is here!
The app has been completely rewritten from scratch. It now features a modern
Material Design UI, a more powerful and intuitive interface, and improved
performance across the board.
- Support for demodulation while app is in the background
- Improved stability, demodulation and recording features
- Integrated user manual and contextual help
- Added support for RTL-SDR Blog v4
RF Analyzer version 1.13
Updated At: 2025-08-03
Changes: version 1.13
- Bookmark frequencies
- Including hackrf_android 1.12 (support for rad1o)
- Select unit for frequency and bandwidth (MHz,kHz,Hz) in jump dialog
- Support for Marshmallow permission model
- Many bugfixes
Disclaimer
External Download
We do not host RF Analyzer on our servers. We did not scan it for viruses, adware, spyware or other type of malware. This app is hosted by Galad and passed their terms and conditions to be listed there. We recommend caution when installing it.
The APK Download link for RF Analyzer is provided to you by apps112.com without any warranties, representations or guarantees of any kind, so access it at your own risk.
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