Listening area
Use your current location or choose another area manually, with the radius kept visible and easy to change.
HeardAPRS, made clear.
Modern APRS exploration for iPhone and iPad
APRS,
made clear.
See live amateur radio activity on a clear map, understand the stations you discover, and follow movement as new APRS reports arrive.
Also available on Apple silicon Macs and Apple Vision Pro as Designed for iPad.
Receive-only by default. APRS messaging is optional and requires configuration.
Clear mapsLive APRS activity around you
Station contextSignals, symbols, and details
Local directoriesOptional FCC and ISED lookup
Private by designNo advertising or tracking SDKs
Explore, understand, discover, follow
A living map of amateur radio activity.
Heard turns APRS packets into a clear view of the stations, movement, identities, and local activity happening around you.
EXPLORE
See the network around you.
Start with a rich, interactive Apple map populated by station-aware symbols. Sort recent activity, browse a clear station list, and move naturally between the map and station details. On iPad, view the map and station list or details side by side in wider layouts.
- Station categories and recognizable symbols
- Freshness, distance, and nearby-place context
- Standard, Satellite, and Hybrid map styles
UNDERSTAND
Know what you are seeing.
Open a station to see what was heard, when it was heard, and the useful information carried in its APRS report. Heard keeps raw packets and technical information in an expandable Technical Details section while making the common questions easy to answer.
- Station type, symbol, freshness, and packet context
- Speed, course, altitude, status, and technical details
- Weather reports and telemetry readings when supplied by stations
- Nearby place and distance context when available
DISCOVER
Add context to a callsign.
Install the local directories you need, then add operator and licence context to stations and callsign searches without sending every lookup to a remote service.
- Canadian ISED and U.S. FCC sources
- On-device lookup after installation
- One-tap QRZ access in an in-app browser when you choose it
FOLLOW
Track movement as it happens.
Choose a moving station and keep it in view as new reports arrive. Heard can preserve your zoom, draw a breadcrumb trail, and reduce the visual weight of everything else.
- Live following with adaptive station-centered framing
- Configurable trail duration
- Dim other stations when you want to focus
The essentials, thoughtfully handled
Focused tools without the clutter.
Callsign search
Search stations already heard and, when a directory is installed, find records that have not appeared live yet.
APRS messaging
Send and receive APRS messages in conversation-style threads after configuring messaging. Heard starts as a receive-only listener; APRS messages are public.
Session status
See the last station, last packet, packet count, station count, and connected duration at a glance.
Diagnostics
Raw packet details and connection information remain available without overwhelming the primary experience.
Made for iPhone and iPad
Native layouts adapt to iPad rotation and window resizing, with the map and station details side by side when space allows. The iPad app is also available on Apple silicon Macs and Apple Vision Pro.
Privacy in plain language
Your listening setup stays yours.
Location access is optional. Directory records are queried locally after download. Heard does not include advertising or third-party tracking SDKs.
Optional locationUsed to create your listening area and position the map.
Local preferencesPreferences are saved on your device. Your connection identity and listening-area filter are sent to APRS-IS.
Local directory lookupInstalled FCC and ISED records are searched on-device.
Public radio networkAPRS traffic itself may be publicly transmitted and relayed.
Real screens from Heard
Explore Heard on iPhone.
These iPhone screens show Heard’s map, station details, callsign directories, tracking tools, and settings. Heard also includes native iPad layouts.
App Store release
The APRS network, made clear.
Download Heard free from the App Store for iPhone and iPad, or use the iPad app on Apple silicon Macs and Apple Vision Pro.
Requires iOS 17 or iPadOS 17 or later. Mac requires Apple silicon and macOS 14 or later. Mac and Apple Vision Pro availability is Designed for iPad.