Echo vs E.C.H.O
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Echo
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.
- Global interactive map and search
- Support for multiple SDR architectures
- Scanner mode and OpenMHz archives
- Pro-level tuning and analytics
- Offline frequency library and logging
- Uninterrupted background audio
- Privacy-first design
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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 and OpenMHz archives. 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 & OpenMHz Automatically cycle through station lists at set intervals. Listen directly to public safety, fire, and EMS radio systems via vast OpenMHz archives. 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 • Every button, control, and station card announces 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/
E.C.H.O
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ADAM ECHO is a secure messaging and communication platform built for organizations that need reliable, protected communication in demanding environments. Whether your team is fully connected, working with limited connectivity, or operating on a local network, ADAM ECHO helps authorized users stay in contact. Messaging That Works Anywhere • Real time encrypted messaging for group and one to one conversations • Peer to peer connectivity for local network communication when internet access is limited • Read receipts and delivery status • File and media sharing with in app preview Built In Security • Biometric app lock with Face ID and Touch ID • Automatic app locking for added protection • Screen capture protection for sensitive conversations • Configurable message and file redaction • Auto deletion options based on read status • Mandatory authorization controls for approved user access only Voice, Location, and Presence • In chat location sharing between participants • Proximity based discovery to find and connect with nearby team members • Quick connection through QR codes Built for Operational Workflows • Custom chat names, colors, and backgrounds • Push notifications with selectable alert sounds and badge support • Clean, modern interface optimized for low light use ADAM ECHO is intended for authorized organizational use only. Access requires valid credentials and acceptance of applicable use agreements.
Screenshots
Verdict
The clearest difference is in-app purchases: E.C.H.O at none against Echo's 2. On price, ads, device support and iOS requirement 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
Both are free to download. Echo sells 2 in-app purchases, starting at $4.99 per month. E.C.H.O asks for nothing beyond the download.
| Parameter | Echo | E.C.H.O |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (33 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 33 — better | — |
| Update frequency | Weekly | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 16.6 — better |
| Further details — not scored | ||
| Size | 11 MB | 234 MB |
| Age rating | 4+ | 4+ |
| Developer | Mark Garrison Jr. | Adam Aerospace CO. LLC |
In-app purchases
Echo
- Echo Pro Monthly$4.991 Month
- Echo Pro Annual$39.991 Year
E.C.H.O
No in-app purchases









