SmartSDR™ - FlexRadio Systems®

SmartSDR™ - FlexRadio Systems®

Official FlexRadio® Client

132 ratings
86 reviews
$79.99

Lowest price: Free 4 years ago (-100%)


Price history


Details

Released
September 2, 2016
Updated
October 28, 2026

Features

SmartSDR™ - FlexRadio Systems® screenshot #1 for iPhone
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SmartSDR™ - FlexRadio Systems® screenshot #8 for iPhone
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About

Control your FlexRadio SDR device from your iPad or iPhone. Access nearly all features of the desktop client, including digital modes, signal analysis, and remote operation via SmartLink. Requires compatible FlexRadio hardware.

✓FT8 and FT4 support
✓SSTV TX and RX
✓APRS TX and RX
✓CW Decoder and keyer
✓Weather Fax decoder
✓Slice and Panadapter management
✓SmartLink remote access
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What's New in SmartSDR™

27.0.10

October 28, 2026

This update contains the following changes and improvements: ◉ A new look: the app now follows Apple's own iOS design, in light and dark mode, on the iPad and the iPhone ◉ New tab bar with Panadapter, Modes, Tools, Radio and Settings ◉ Modes and tools keep running when you leave their screen; a green dot on the tile shows which ones are running ◉ Runs on Apple Vision Pro ◉ New Speech mode (iOS 26): incoming voice is transcribed and optionally translated, your typed text is sent as speech ◉ New CW mode with decoder, keyer settings, CW keyboard and paddle ◉ CW: improved decoder ◉ CW: the new ESM mode (Enter Sends Message) ◉ HF-Fax and SSTV with new receivers, a frequency list that tunes the radio, and Auto Save into Photos ◉ All tools redesigned: DX Cluster, POTA, PSK Reporter, Band Plan, Call Lookup (with Show on Map), Logbook (with a map of your worked grid squares), Network Stats, Genius, Command Bar, Ultra Beam, HomeKit and the controllers ◉ Several MIDI controllers can be used at the same time ◉ The radio controls (CWX, Tune Stack, Macros, Command Bar, DTMF, RIT / XIT, ESC) are now compact floating panels ◉ The band plan is shown on the Panadapter as a coloured ribbon ◉ Demo radio: try the app without a radio ◉ FlexRadio firmware 4.3: FreeDV modes FDVU / FDVL, filter presets from the radio (editable in the radio settings), advanced DSP settings, Auto AGC-T, Noise Floor Range, PTT Override and CW profiles (depending on the radio's licence) ◉ The radio keeps playing in the background, for example with the iPad cover closed or the screen locked ◉ Fixed: the audio didn't come back after a phone call or after opening the iPad cover ◉ FT8-Improved and JS8 work with a transverter (for example 2 m): they no longer switch the radio to a band it doesn't have ◉ WSPR: received spots reach WSPRnet again; the status line shows the result ◉ New controller commands: RIT / XIT Up and Down, Frequency Up / Down 10x and 100x, CW pitch, Memory 1-10, Memory Up / Down ◉ Controller knobs on RIT / XIT change it in 10 Hz steps, also after Clear ◉ Controller commands CWX, Enter Frequency, Adjust Main Volume and Open Logbook / DX-Cluster / FT8 work on the iPhone and iPad ◉ RF Gain in the slice's antenna pop-up ◉ New: Firmware Update for your radio, in the Radio settings ◉ Ready for iPhone Duo: the Panadapter, the modes and the tools use the whole screen, folded and open; the zoom buttons are now at the bottom left ◉ SSTV: every mode can now be sent, including Robot 36, Robot 72, Robot 24 and PD-50 to PD-290; Robot 36 pictures (the mode the ISS sends) come out right, and the sender's call sign (FSK ID) is shown ◉ FT8-Improved: Auto CQ answers callers while "Only Show CQ" or "Only Show Containing" is on; touch and hold the filter button to switch the filter on or off ◉ JS8: the correct grid locator is sent south of the equator ◉ Select Memory opens at the memory closest to the active slice ◉ PSK Reporter: changing the time, band or mode in the filter loads the list again ◉ Logbook: QSL "sent" marks of the iCloud log are no longer lost after an app update ◉ Alerts with states, grid locators or countries no longer ring for stations where these are unknown ◉ Antenna Genius with firmware 4.1.9: a tap selects the receive antenna, while transmitting the transmit antenna ◉ Power Genius XL: changing the remote access code works; Rotator Genius: rotator names are saved correctly ◉ Fixed: a crash when iOS started the app in the background ◉ Better VoiceOver support ◉ The manual has been updated ◉ Implemented some additional improvements and optimizations behind the scenes. Kindly use the ‘CONTACT SUPPORT’ feature under Settings of the app in case of questions or issues. I will ensure your request is promptly answered or resolved. Your continued support and valuable feedback play a crucial role in further improving this app. 73s, Marcus, DL8MRE

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Subscriptions & In-App Purchases

$64.99

FlexRadio Device access

Removed from the App Store on November 2, 2026. This enables access to any Flex-6000 Radio.

User reviews

Best Option for Working Remote

I have used this app since picking up my AU-510m from Dayton in 2026. The app makes it so easy to work the rig from another room or even another state!

Macros are flexible and the CW Decoder is one of the best available!

Tolle App

Wirklich schöne App - funktional und wird immer wieder optimiert und weiter entwickelt - dieser Punkt ist für mich besonders wichtig - würde die App definitiv wieder erwerben - ganz klar geschenkt ist die App nicht - aber ihr Preis ist sie Wert

Fantastic software

I have a large flex system two radios 860 6600 with tuner genius, antenna, genius and power genius I was really struggling running this on windows with flex software kept having slice master other third-party apps and windows. Every other day updating the software kept crashing system. I was spending hours of my day trying to keep windows working. I packed it all in scrapped windows went and bought a new Mac and I used Marcus‘s SDR software to do everything it is fantastic now I play radio with built-in FT8 whisper and logging programs also DXlogger is a fantastic logging program as well and an optional JS8 CALL software everything works radio always hooks up my Flex radio‘s be work better than ever. I was ready to sell all my radios and throw rocks at them . Marcus software save me the radios work fantastic now I have no problems. Flex radio’s are fantastic. Just don’t use Windows and flex software. This is your ticket. Buy his suite of software and it works fabulous. I also have his Icom control software it works beautiful with a 705 and a 9700 works fantastic. This is a software for you if you want it simple and just to work. Can’t go wrong with this software and running flex on an apple is the way to go.
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Awesome App

I find myself listening through the app more than on my Flex Radio.

Truly radio anywhere!

To be able to open the app and access all the best of the Flex system anywhere is a blast! The app keeps getting better.

To have a few minutes, open the app, and bag some DX or POTA is just too cool!

Developer apps

FAQ

What does SmartSDR do?

SmartSDR is an official client application that allows you to operate your FlexRadio Systems® Software Defined Radio (SDR) device directly from your iPad or iPhone. It provides access to most of the features found in the desktop version, enabling you to tune, decode, and transmit various radio signals.

What are the key features of SmartSDR?

Key features include support for digital modes like FT8 and FT4, SSTV and APRS transmission/reception, an integrated CW decoder and keyer, Weather Fax decoding, comprehensive management of radio slices and panadapters, and remote access capabilities via SmartLink. It also offers advanced audio and TX settings.

Is SmartSDR free to use?

Yes, the SmartSDR application itself is free to download and use. It does not contain in-app purchases or advertisements. However, you will need to own a compatible FlexRadio Systems® SDR device to operate the app.

What hardware and software is required to use SmartSDR?

To use SmartSDR, you need a FlexRadio Systems® FLEX-6000 or 8000 series radio and an iPhone or iPad running at least iOS 17. For remote operation via SmartLink, a Version 2 License for your radio is also required.

Can I use SmartSDR for remote operation?

Yes, SmartSDR supports remote operation through FlexRadio's SmartLink™ technology. This allows you to control your FlexRadio device from anywhere with an internet connection, provided you have the necessary radio license and network setup.