RF Analyzer

Analyze RF signals on Android with HackRF, RTL-SDR, Airspy and HydraSDR.

App info

Version :

2.1.1

Category :

Tools

Update :

October 20, 2025

Installs :

223,404

Developer :

RF Analyzer

Requires Android :

Android 4.0+

Content Rating :

Everyone

Download APK

App description

Android App Analysis and Review: RF Analyzer, Developed by RF Analyzer. Listed in Tools Category. Current Version Is 2.1.1, Updated On 20/10/2025 . According to users reviews on Google Play: RF Analyzer. Achieved Over 223 thousand Installs. RF Analyzer Currently Has 1 thousand Reviews, Average Rating 3.9 Stars

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, 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 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 or HydraSDR)
- Note: The RTL-SDR Blog v4 is 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!

We are currently offering version 2.1.1. This is our latest, most optimized version. It is suitable for many different devices. Free download directly apk from the Google Play Store or other versions we're hosting. Moreover, you can download without registration and no login required.

We have more than 2000+ available devices for Samsung, Xiaomi, Huawei, Oppo, Vivo, Motorola, LG, Google, OnePlus, Sony, Tablet ... with so many options, it’s easy for you to choose games or software that fit your device.

It can come in handy if there are any country restrictions or any restrictions from the side of your device on the Google App Store.

What's New

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

Rate and review on Google Play store

3.9

1,032 total

5 60.6

4 10.0

3 7.7

2 2.7

1 19.1

Total number of ratings

Total number of active users rated for: RF Analyzer

Total number of installs (*estimated)

Estimation of total number of installs on Google Play, Approximated from number of ratings and install bounds achieved on Google Play.

Recent Comments

don t

Works for a few seconds then static. I downloaded the rtl-str driver and said it installed correctly. Then I downloaded RF analyzer. Set it up properly, but the only station I could get was 1 FM, and 1 WX. Everything else was static. And then it would only work for a few seconds and disconnect. I'm on a galaxy s21 ultra so it couldn't be the phone. I guess it's time to give up.

Dave Todd

Well it would have been exactly what I was looking for except it refuses to go down into the ham bands. I like to play with old military radios and rather than deal with those clunky chunky knobs trying to find something I bought an SDR so I could waterfall and find something to aim the set at. This fit the bill until I got it finally down into the ham bands and it kept telling me that it can't go there. Pointless to make software it doesn't go where the Hardware can

Turbine Dynamics

Very nice implementation, I actually prefer to use this over sdr touch and this is not only free, but sounds much cleaner on most of the frequencys I've tested on. Simple FM broadcast, Noaa. Be happy to pay for this with additional decoders but understand it's technically listed as an analyzer. Maybe a mode selection? Good work regardless!

Ed Kempe

working well. but (like all the others) there are some easy features left out. we need weighted tuning. if you don't know what that means it is as if you are spinning a heavy tuning knob. it keeps spinning. also an autoscan. manually flicking through 1ghz of band give me blisters on the finger

Todd Mathews

Great app, however there isn't a way currently to navigate to lower frequencies - even with capable SDR hardware attached. Some navigation controls could be improved for ease of use (adjusting bandwidth & center point)

A Google user

Working great on a Samsung J9 Pro. with a NESDR Smart Dongle. Even tried with the Ham-It-Up upconverter for SW broadcasts (on a separate power supply) and no issues to report. Great app, for the short period of time I have used it.

Josh schwarz

First off you got to download more apps to even use it first and foremost as if that's not already annoying those apps don't work so in turn this app don't work nothing works what's the point why is it still on the App store does anyone do their job in the App store the developer even care cuz this doesn't do a damn thing even with the f it makes you download to use it

A Google user

Great app. Worth buying it. However, minor interface adjustments are appreciated (eg: numeric values instead of imprecise touch) Also, an option to connect via rtl_tcp is a missing functionality =(