226+ iOS apps curated and reviewed
Echo is the household name in sdr, but it's far from the only option. We track 226+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 5.0★ (18) | No | No | Aug 2026 |
| 2 |  | Free | 5.0★ (5) | No | No | Aug 2026 |
| 3 |  | Free | — | No | No | May 2026 |
| 4 |  | Free | — | No | Yes | Aug 2026 |
| 5 |  | Free | — | No | Yes | Aug 2026 |
| 6 |  | $79.99 was $99.99 | 4.3★ (130) | No | No | Aug 2026 |
| 7 |  | Free | — | No | No | May 2026 |
| 8 |  | Free | — | No | No | May 2026 |
Tune into thousands of remote radio servers worldwide from your iPhone or iPad. Explore shortwave broadcasts, aviation communications, and more with a global interactive map and advanced tuning features. Enjoy uninterrupted background audio and a privacy-first experience.
This application allows users to connect to and control RTL-SDR servers on their local network. It provides live spectrum and waterfall displays, various demodulation modes, and DSP controls for audio filtering and signal tuning. Users can save favorite stations and adjust RF settings.
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.
Control your Incar SDR combo device via Wi-Fi using your iPhone. Download software and camera databases, and stream video files directly to your device.
This app acts as a software-defined radio receiver for iOS devices, allowing you to listen to various radio signals and view RF spectrum data. It connects to external SDR peripherals via a network protocol, requiring a separate server setup.
Prepare for your Technician Class FCC Amateur Radio License exam. Review official question pools, take topic-specific quizzes, and simulate the actual exam. Track your progress and find local exam sessions.
This app demodulates and plays AM and FM radio signals received by compatible SDR hardware. It allows users to listen to various broadcasts, manage station lists, and adjust audio settings. Requires a separate radio and host computer for operation.
Control your Icom transceiver remotely or locally from your iPhone. Operate in all modes, log QSOs, and utilize integrated digital modes like FT8/FT4 and SSTV. No extra hardware is needed for global access.
Access local government data for address, coordinate, and intersection searches. Uses device GPS and 9-1-1 mapping data for emergency response and location tracking.
Explore the radio frequency spectrum with interactive visualizations like panadapters and waterfalls. Demodulate and listen to various radio signals, and collect frequencies. This flexible application supports numerous SDR hardware protocols and offers access to hundreds of global servers for listening without special equipment.
This app acts as a versatile receiver client for various software-defined radio servers. It offers advanced display, tuning, and audio features, along with on-device decoders and voice control for a comprehensive radio experience.
This is the native client for an open-source project that scans and identifies audio. It offers premium features through an annual subscription, which automatically renews unless canceled.
This virtual ham radio transceiver simulates HF bands from 10-160m, including 6m, 2m, and 70cm. It features USB, LSB, and CW modes, power settings, and built-in audio filters. Additional instruments can be unlocked via in-app purchases.