SmartSDR™ vs iFTx
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SmartSDR™
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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Official FlexRadio Systems® Client - All-Inclusive, no In-App Purchase! SmartSDR is a full featured radio client that enables your iPad or iPhone to operate your FlexRadio device. It is fully compatible to SmartSDR v1, v2 (including SmartLink) and v3 (including MultiFlex and SmartControl) and v4. Please note: This App requires a FlexRadio Systems® Series 6000 or 8000 or Aurora Software Defined Radio (SDR) Device. FACTS AND FEATURES: SmartSDR offers almost all features of SmartSDR for Windows such as: ■ Supports FT8 and FT4 (iPad and iPhone Max, Firmware 2 required) ■ SSTV TX and RX (NEW!) ■ APRS TX and RX (NEW!) ■ Included CW Decoder and keyer ■ Weather Fax (HF-Fax) Decoder ■ Creation, maintenance of Slices, TNFs, Filters ■ Unlimited number of Slices, Panadapters (limited only by radio model) ■ CWX support including Sidetone and live send mode ■ Software Paddle or Straight-Key support ■ Maintain all Radio, Slice and Panadapter settings ■ Support for Memories ■ Profiles integration (TX, Microphone and Global) ■ Audio settings supported including equalizers ■ Support for TX Settings like Power including all Tuning features ■ Transverter support ■ SmartLink™ remote access ■ APD / SmartSignal™ support ■ MultiFlex™ support ■ SmartControl support ■ HomeKit support to control radio, antenna switches etc. remotely ■ Direct support for Power Genius XL (PGXL), Tuner Genius (TGXL), Antenna Genius (AGXL) and Rotator Genius (RGXL) local and remote For HomeKit, you can use any Power Plug or Switch that are HomeKit compatible. In addition to SmartSDR for Windows, this App offers these features: ■ Band limits and Band maps and modes will be displayed inside the Pan adapter ■ DX Cluster support which displays spots directly inside the Pan adapter ■ Graphical tuning knob for easy and exact frequency selection. ■ Various additional minor bells and whistles such as easy TNF maintenance, ■ Direct Bandwidth selection, Split Mode, instant Memory creation and more. ■ Device logging and device parameter monitoring (e.g. PA Temperature etc.) ■ Logbook integration with ADIF Im- and Export ■ Support for two Bluetooth and USB Controllers ■ Voice Macro recording and playback There are just a few limitations compared to SmartSDR for Windows which are: - Only one Panadapter visible at the same time. - Diversity is not implemented. WHAT YOU NEED: - A FlexRadio Systems® FLEX-6000, 8000 or Aurora series radio - An iPhone or iPad that runs at least iOS 17, ideally the latest iOS version NETWORK REQUIREMENTS: To run this App at your home, nothing else but a regular WiFi connection is needed that can access your FLEX Radio. You can immediately start using the App. For Remote operation via SmartLink™ a Version 2 License is required for your Radio. The App supports Splitscreen Multitasking on the newer iPads so you can run SmartSDR in split mode parallel to your browser, Email software or any other App. SUPPORTED SDR HARDWARE: FLEX-6300, FLEX-6400, FLEX-6400M, FLEX-6500, FLEX-6600, FLEX-6600M, FLEX-6700,FLEX-8400, FLEX-8400M, FLEX-8600, FLEX-8600M, AU-510, AU-510M, AU-520, AU-520M Find out more here: https://ham-radio-apps.com Read the Manual: https://go-to.me/smartsdr-manual
iFTx
This app enables seamless communication using FT8 and FT4 digital modes directly from your iOS device. Enjoy portable digital connections, effortless operation with a user-friendly interface, and reliable performance for global contact.
- FT8 and FT4 digital modes
- Portable digital communication
- Global operator connections
- User-friendly interface
- Integrated QSO logging
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Introducing iFTx: The Essential iOS App for FT8 and FT4 Digital Modes! - Seamlessly Engage: iFTx brings FT8 and FT4 digital modes to your iOS device, enabling convenient and portable digital communication. - Anytime, Anywhere: Enjoy the flexibility to connect with operators globally from the comfort of your iOS device. - Effortless Operation: Navigate the user-friendly interface for quick setup and real-time messaging. - Reliable Performance: Experience clear signals and adapt to changing propagation conditions with ease. - Log Your Success: Keep track of your contacts effortlessly with integrated QSO logging.
Screenshots
Verdict
The clearest difference is price: iFTx at $1.99 against SmartSDR™'s $79.99. iFTx also leads on in-app purchases (none vs 10) and chart position (#98 vs unranked). SmartSDR™'s advantage is update cadence (every 2 weeks vs every 6 months). On rating, review sentiment, ratings volume and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
SmartSDR™ costs $79.99 and iFTx $1.99 up front. SmartSDR™ sells 10 one-off in-app purchases. iFTx asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.3 for SmartSDR™ against 4.2 for iFTx. Both are backed by a comparable volume of ratings — 132 and 70 respectively. Written reviews are what separate them: 77% of SmartSDR™'s written reviews are positive against 72% of iFTx's.
SmartSDR™ ships an update every 2 weeks, iFTx every 6 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | SmartSDR™ | iFTx |
|---|---|---|
| Price | $79.99 | $1.99 — better |
| Rating | 4.3 (132 ratings) — better | 4.2 (70 ratings) |
| Positive reviews | 76.7% of reviews — better | 71.8% of reviews |
| Number of ratings | 132 — better | 70 |
| Update frequency | Every 2 weeks — better | Every 6 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Best chart rank | — | #98 — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 64 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Marcus Roskosch | Christoph Nadig |
Customer experience
SmartSDR™
iFTx
In-app purchases
SmartSDR™
- Region 1,2 and 3 Band PlanFree
- DX-Cluster$5.99
- Griffin PowerMate BT Controller support$5.99
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- MidiController support$5.99
- Logbook Add-on$5.99
- Flic 2 Button support$5.99
- Voice Macros$5.99
- 4O3A Genius Device support$9.99
- FT8$19.99
- FlexRadio Device access$64.99
iFTx
No in-app purchases









