Spectrum SDR (RTL-SDR)
Spectrum SDR (RTL-SDR) is made and published by Knowle Consultants. AppBrain is an independent app data site and isn't affiliated with Knowle Consultants. The app name, icon, screenshots and description belong to Knowle Consultants and are shown as published on Google Play.
AppBrain's verdict
- Total installs
- 23 thousand
- Rating on Google Play
- 3.75
- 32 ratings
- Last updated
- August 13, 2026
Spectrum SDR (RTL-SDR) has 23 thousand installs. It doesn't have enough ratings yet to judge what users think.
Installs
Tracked by AppBrain- Last 30 days
- 1.3 thousand
- Per day
- 45
- 30-day average
- Play install range
- 10+ thousand
- Launched
- March 2025
Installs over time
Spectrum SDR (RTL-SDR) has been installed 23 thousand times. Over the past 30 days, it averaged 45 installs per day.
Rankings
Google Play top chartsGoogle Play Rankings for Spectrum SDR (RTL-SDR)
Competitors
Similar apps and more from Knowle ConsultantsAlternatives to Spectrum SDR (RTL-SDR)
More from Knowle Consultants
Releases
Updates seen on Google Play- Version
- 1.27
- Launched
- March 2025
User feedback
Ratings and reviews on Google PlayGoogle Play Rating history and histogram
Comments on Spectrum SDR (RTL-SDR) for Android
Technology
Found in the app by AppBrain- Ads
- Contains ads
- Price
- Free
- Libraries
- ?
- App size
- 8.64 MB
- Content rating
- Everyone
Technologies used by Spectrum SDR (RTL-SDR)
About the app and developer
About Spectrum SDR (RTL-SDR)
Spectrum SDR (RTL-SDR) is a communication app developed by Knowle Consultants.
Install Statistics
Spectrum SDR (RTL-SDR) has been installed 23 thousand times. In the last 30 days, the app was installed 1.3 thousand times.
User Ratings
Spectrum SDR (RTL-SDR) is rated 3.75 out of 5 stars. The rating is based on 32 ratings.
App Information
Spectrum SDR (RTL-SDR) is freely available from Google Play. The app size is 8.64 MB. The latest version available is 1.27. The last update was on August 13, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on Google Play since March 2025.
App Performance Report
Get a detailed PDF report for Spectrum SDR (RTL-SDR) with download trends, rating history, and key performance statistics — useful for competitive research or tracking your own app. Learn more
Get PDF Report — $29Developer information for Knowle Consultants
Store listing
By Knowle Consultants, from Google Play“Software Defined Radio using an RTL-SDR dongle or a remote instance of rtl_tcp.”
Description by Knowle Consultants Written by the developer, not by AppBrain. Click to read.
- Covers the full frequency range of your RTL-SDR dongle.
- AM and FM, wide and narrow, SSB, CW.
- FFT and Waterfall displays.
- Sample rates 240000 Hz to 2160000 Hz.
- Bias tee control.
- 75 presets over 5 pages.
- Gain controls.
- Squelch.
- Flexible display options, hide things you don't need to see.
- Built-in help.
There are two ways to use the application. The first is to use an RTL-SDR dongle and an SDR driver, available from Google Play. Selecting the Driver option in the application menu will open the driver page on Google Play. The second way is to connect to an instance of rtl_tcp running on a remote computer, most likely over WiFi. You will need a good network connection for this to work reliably so use of the driver is probably the preferred way to use the application in most cases.
We hope you enjoy using this application.
Recent changes:
Allow radio to be stopped when using driver.