Echo vs Ham Imaging

Echo is the ultimate, natively-built iOS client for tuning into remote radio servers. Listen to anything, from anywhere. Dive into international shortwave broadcasts from Asia, monitor aviation communications over the Atlantic, discover mysterious numbers stations, or tune into distant FM stations across the globe, all from your iPhone, iPad, or Mac with Apple silicon. Featured in Radio World, on RTL-SDR.com, and in the SWLing Post. Radio World's Nick Langan praised Echo's "thoughtfully designed interface," said he has "loved using" the app, and later described Echo Pro's transcription as "very responsive." Designed for radio enthusiasts and curious listeners alike, Echo is a powerful aggregator that connects you to nearly 3,000 community-hosted Software Defined Radio (SDR) receivers. By integrating these reliable streams into a dedicated native environment, Echo delivers true background audio, high-performance mapping, and features that are difficult to achieve in a standard web browser. KEY FEATURES Global Interactive Map & Search Visually browse thousands of remote SDR servers worldwide using our smooth, native MapKit clustering engine, or instantly search nearly 3,000+ receivers by name or location. Unmatched SDR Compatibility Seamless support for KiwiSDR, OpenWebRX, WebSDR, and FM-DX Webserver architectures. Want to listen to a private node? Add your own unlisted servers with custom URL entry. Scanner Mode Automatically cycle through station lists at set intervals. Advanced Tuning & Analytics • Smart Manual Tuner: Instantly tune by entering kHz or MHz; Echo intelligently detects the band format. • Audio Engine Passthrough: Interfaces directly with server-side signal processors for broad compatibility with waterfall rendering, plugins, and decoding extensions. • Intelligent Profile Switching: Automatically switches to the correct server band profile as you tune on supported networks. Offline Frequency Library & Logging Search an offline, built-in EIBI database of over 9,000 global shortwave and utility frequencies. Save and log your favorite stations to your local device. Uninterrupted Background Audio Keep listening when your screen is locked or while using other apps. Our custom audio bridge intercepts complex SDR streams to provide true iOS background playback and lock-screen controls. ECHO PRO Take Echo further with recording, live transcription, translation, and iCloud sync. • Record the Airwaves: Record live radio and revisit important moments anytime. • Live Transcription: Turn live radio into on-screen text as you listen. • Translation: Transcribe foreign-language broadcasts and translate them into readable English. • iCloud Sync: Sync recordings, transcripts, translations, notes, favorites, saved servers, and supported settings across your Apple devices. Echo Pro requires a monthly or annual subscription. Privacy First Zero tracking. No analytics, no proprietary tracking servers, and no ad IDs. Your listening activity is not tracked. Echo Pro syncs supported data through your private iCloud account. Built with speed, aesthetics, and privacy in mind, Echo ensures a fast, premium listening experience. Start exploring the airwaves today! VoiceOver & Accessibility Support • Station cards, player, recording, and scanner controls announce meaningful context to VoiceOver • Scanner controls (play/pause/skip/favorite) are fully labeled and navigable • Station changes, server connections, and scanner state are announced in real-time • Reduce Transparency support: glass effects swap to solid backgrounds when enabled • Reduce Motion support: animations are simplified when enabled in iOS settings • Decorative elements hidden from assistive technology for a cleaner navigation experience Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Ham Imaging is the picture side of amateur radio. Hold your phone to any receiver's speaker and watch slow-scan television pictures decode live, or transmit your own with your callsign printed on them — no interface box, no cables, no computer. RECEIVE • Live SSTV decode straight from your radio's audio through the device microphone • Automatic mode detection from the VIS header — leave it on Auto and the picture just appears • 20 modes decoded and encoded: Scottie 1, 2, 3, 4 and DX; Martin 1, 2 and 3; Robot 12, 24, 36 and 72; PD 50, 90, 120, 160, 180, 240 and 290; and Wraase SC2-180 • A live tuning meter and signal-confidence readout so you can peak the audio before the picture starts • Slant correction for the small clock differences that make a picture lean • The picture paints in as it arrives — you do not have to wait for the end of the frame TRANSMIT • Send any photo from your camera or gallery as an SSTV picture • Optional overlay printing your callsign, grid and a free text line onto the image • Pick the mode to suit the band and the time you have • A progress bar tracks the transmission, and you can cancel at any point • Putting a signal on the air stays your decision — the app makes the tones, you key the radio GALLERY & LOGGING • Everything you receive or send is kept together on the device with its mode and UTC time • Share a watermarked copy anywhere • Clean export — a plain copy at 800 px, exactly the format ARISS asks for in award submissions • Copy an ADIF line to paste an SSTV contact straight into Ham Logging or your desktop logger • Delete a single picture or clear the whole gallery. Nothing is ever uploaded BUILT FOR THE SHACK • Works fully offline — decoding and encoding never need an internet connection • Light and dark themes, adjustable font size, weekly tips and in-app version history • Your callsign and grid stay on your device • No account, no ads, no analytics and no tracking PERFECT FOR • Operators working the HF SSTV picture nets • Anyone chasing ISS / ARISS SSTV events and award submissions • Shortwave listeners who want to see what those warbling tones actually are • Newcomers who want to try SSTV without buying an interface • Clubs demonstrating amateur radio to visitors and students PRIVACY • Your callsign, grid and email are stored only on your device. • No account, no sign-up, no ads, no analytics SDKs, no advertising ID and no tracking of any kind. 73 de A41UX Yousuf AL Balushi — Unixeer, Oman