Name: Echo
Availability: InStock
Author: Joel Calado

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		Developer:	Joel Calado (4)
		Price:	Free
		Score:	2,520 Silver
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Description

Echo turns your Android phone or PoC radio into a window on the global amateur radio community. Browse the live EchoLink directory, discover repeaters and conferences worldwide, and connect in a tap.

Whether you are brand new to EchoLink or a seasoned operator, Echo makes VoIP ham radio feel easy. Tap a station and start talking. Clean status, big buttons, and a calm interface that gets out of the way mid-QSO — a modern Material 3 take on push-to-talk.
REQUIRES A LICENSED ECHOLINK ACCOUNT
A valid, licensed amateur radio EchoLink account is required. Register at echolink.org (a link is built into the login screen). Echo is an independent, third-party client and is not affiliated with or endorsed by EchoLink Systems, Inc.

EXPLORE THE WORLD OF STATIONS
• Browse the live EchoLink directory, filterable by Users, Repeaters, Links, and Conferences
• Search by callsign, location, node number, or country name
• Station cards with node type, location, online/busy/offline status, and conference occupancy badges
• Recent stations reel on the home screen for one-tap reconnect
• Favorites you can reorder your way — drag on phones, D-pad grab-and-swap on compact radios

TALK YOUR WAY
• Big push-to-talk (PTT): press-and-hold or toggle — a circular button on phones, a wide bar on compact radios
• Hardware PTT via a bindable custom key (Bluetooth HID or native Android)
• VOX (voice-operated transmit) for hands-free operation, with adjustable threshold and hang time
• Key-down and key-up tones
• Always-visible TX/RX status so you never guess whether you are transmitting

IN THE QSO
• Live peer info on a clean, focused connection screen
• Conference participant list showing who is speaking and when they joined
• In-QSO text messaging
• VU meter for real-time mic level monitoring
• Screen stays awake during a contact

AUDIO THAT FITS THE ROOM
• RX processing modes: Natural, Clear Voice, Loud, and Enhanced for different environments
• Mic gain from -12 to +18 dB in clean 6 dB steps
• Separate network jitter buffer and playback buffer controls, with settings that explain the latency tradeoff
• Input and output device selection, including Bluetooth headsets
• Audio presets — save named snapshots for a quiet room, a noisy car, or the field, and switch in a tap

CONNECTS ANYWHERE
• Multiple network modes: Direct (UDP), Relay (NAT traversal), Proxy (TCP), and Auto
• Works behind NAT out of the box; relay is on by default, with a NAT hole-punch option
• Full proxy configuration for restrictive networks and CGNAT
• Auto-reconnect to your last node on launch (opt-in)
• Accept incoming connections (opt-in) with an accept/decline call screen
• Deep links (echolink://connect/) and launcher shortcuts for instant reconnect

BUILT FOR EVERY OPERATOR
• Optimized layouts for phones and compact PoC radios
• Full D-pad and hardware-key navigation for radios without a touchscreen
• Native Android keyboard input on compact devices
• Accessibility first: screen reader support, semantic labels, and toggle-based PTT for explore-by-touch

MAKE IT YOURS
• Light, dark, or system theme
• Accent color customization: Material You (Android 12+), nine presets, or a custom picker
• Adjustable text scale and a fullscreen/immersive toggle
• Settings backup and restore to a JSON file :passwords are excluded, so it is safe to share
• Keep-running-in-background prompt with an optional battery Doze exemption for long QSOs

GOOD TO KNOW
• Requires a licensed amateur radio operator and a registered EchoLink account
• Like radio itself, EchoLink audio and text are transmitted unencrypted: any connected or RF-linked station can hear you
• Connection history and in-QSO chat are session-only and are not archived
• Incoming calls require you to opt in first
• Currently English-only

Discover the community. Key up. Say hello to the world. 73!

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EchoGoogle Play2K SilverAndroid

Free

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Developer 4

Joel Calado
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Platforms: Android Apps (4)
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What's new

Version: 1.1.0
Last Updated: 2026-10-30 02:03:03 UTC
- Redesigned QSO screen: colour-coded connection tile, live RX waveform and over clock
- QSO log of your past contacts
- New PTT bar with TX timer and timeout countdown
- Redesigned home screen and station info
- Optional Denoise for received audio
- Radio-style layout for compact PoC radios like the Hytera P50
- Fixed doubled RX audio and the station list emptying on refresh

Version history

Additional Information

Release Date: 2026-07-22 02:02:56 UTC
Category: Android Apps › Communication
OS: Android 7.0
Content Rating: Teen
Google Play Rating: ^¡ 0
Google Play Downloads: 758
Website: https://echo.jcalado.com

AppAgg Score

2,520

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Estimated AppAgg Score for
Echo
Developer: Joel Calado

2,520 Silver

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Based on: popularity · ratings · freshness · deals · store data · community signals

Recalculated daily using fresh AppAgg data. 2026-10-29

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On AppAgg, you can track the Android app “Echo” by Joel Calado, listed under Communication. AppAgg Score: 2,520 (Silver). AppAgg Points for the app — confirmed: 0; indirect: 0. Public lists containing the app: 0. Users who have saved it in private lists: 0. AppAgg users have not rated the app yet. Confirmed Points record visits to a store by signed-in AppAgg users; indirect Points are based on store data. AppAgg counts public lists containing an app or game and users who have saved it in private lists. The app was first released on 2026-07-22 02:02:56. The app was last updated on 2026-10-30 02:03:03. The app is currently available for free. Explore the price history, add the app to a list, or follow its developer. Follow future deals and updates for the app via its RSS feed. AppAgg does not host or distribute the app. All trademarks, logos, and screenshots related to the app belong to their respective owners.