Best Spectrum SDR (RTL alternatives: apps like Spectrum SDR (RTL-SDR)

4.0(3 ratings)

Free

Transform your iPhone or iPad into a global radio receiver. Connect to public directories or your own network to tune into live spectrum and waterfall displays. Enjoy advanced audio filtering and signal processing features for an immersive listening experience.

SDRFE Spectrum Analyser by XionLogic Limited

Strong Contender

0.0(0 ratings)

Free

VibeSDR by Stuart Carr

Software Defined Radio

Worth Considering

FT Ham – FT8/FT4 transceiver

5.0(2 ratings)

$2.99

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.

More apps like Spectrum SDR (RTL

Decode & send FT8/FT4 signals

Real-time FT8/FT4 decodingLive waterfall displayAuto QSO sequencing

This application decodes and transmits FT8/FT4 digital signals for amateur radio operators. It offers real-time decoding, auto QSO sequencing, and a logbook, with optional premium features for enhanced control and data synchronization.

(4)

Native FT8 RX/TX for ham radio

SimpleFT8

Live decode tableSlot-aligned transmitter with QSO composerBuilt-in waterfall display

This app enables ham radio operators to send and receive digital signals using FT8 and FT4 modes. It facilitates long-distance communication even in challenging conditions, allowing for local logging and optional global propagation mapping.

(0)

free

Encode and decode SSTV images

SimpleSSTV

Encode images to SSTV audioDecode SSTV audio to imagesLive camera feed with trigger modes

This app allows ham radio operators to encode images into audio signals for transmission and decode received audio back into images. It supports various SSTV modes, live camera feeds, and even AI-generated QSL cards. Receive alerts for International Space Station SSTV events.

(4)

free

ATC SkyDecode: Air Traffic

Listen, Decode, Learn ATC

Synchronized ATC dialogues with textReal-time global flight mapAircraft details on tap

Learn air traffic control communications with synchronized text and audio dialogues. Track global flights in real-time on a live map, viewing aircraft details. Designed for aviation enthusiasts and learners with a focused, dark interface.

(264)

Drone Scanner

Drone Remote ID scanner

Real-time drone trackingDetailed drone informationInteractive flight map

Transform your device into a drone scanner to track nearby flights in real-time. View detailed flight information, including pilot data and location history, on an interactive map. The app is updated to comply with current EU and US regulations.

(148)

free

Network Scanner (WiFi/LAN)

IP Scanner

Fast network scanningCustomizable device names and iconsSave and review past scans

This utility scans your local network to identify all active devices and machines. It offers fast, customizable results with tools like PING and Wake on LAN. A free version identifies up to 15 devices, with an in-app purchase to unlock unlimited devices and more advanced features.

(896)

Morse Code Reader and Decoder

Translator & Flashlight Signal

Text to Morse code translationMorse code to text decodingFlashlight signal transmission

Translate text to Morse code and vice versa, send signals using your device's flashlight, screen, or vibration. Includes practice lessons to learn Morse code at various difficulty levels.

(2.5K)