Features & Capabilities

Decode and transmit RTTY, PSK31, and other ham radio digital modes with a familiar chat interface. Free, open source, and no ads.

Amateur Digital turns your iPhone or iPad into a full-featured digital mode station for amateur radio. Connect a USB audio interface between your device and your HF transceiver, and you're on the air.

SUPPORTED MODES

  • RTTY (45.45, 50, 75 Baud) — Classic radio teletype using 5-bit Baudot code
  • PSK31 (31.25 Baud) — Narrowband phase-shift keying for keyboard-to-keyboard QSOs
  • BPSK63 (62.5 Baud) — Faster PSK for stronger signals
  • QPSK31 (31.25 Baud) — Four-phase PSK with 2x throughput
  • QPSK63 (62.5 Baud) — Fastest PSK variant for excellent conditions

MULTI-CHANNEL DECODING Monitor multiple signals simultaneously across the audio passband. The app automatically detects and decodes transmissions on different frequencies, displaying each conversation in its own channel.

IMESSAGE-STYLE INTERFACE A familiar chat interface makes digital modes approachable. Sent messages appear as blue bubbles, transmissions in progress are orange, and decoded signals appear as incoming messages. Swipe to reveal timestamps.

AUTOMATIC GRID SQUARE Uses GPS to determine your Maidenhead grid locator automatically — perfect for portable and field operation. Enter your callsign once and it's ready for every QSO.

BUILT-IN FREQUENCY REFERENCE Quick reference for digital mode calling frequencies on all HF bands from 160m through 6m, including WARC bands.

ICLOUD SYNC Your callsign, grid locator, and mode settings sync across all your devices via iCloud.

FREE AND OPEN SOURCE No ads, no in-app purchases, no subscriptions, no tracking. Amateur Digital is open source and built by a ham for hams.

REQUIREMENTS

  • iPhone or iPad running iOS 17 or later
  • USB audio interface (Lightning or USB-C)
  • HF transceiver with SSB (USB) capability
  • Valid amateur radio license

User Growth & Download Statistics

App
By:
ANDREW MORRISON
Version:
1.0 Last updated: 2026-02-10
Version code:
882229114
Creation date:
2026-02-10
Compatible devices:
Size:
1.50MB
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Apple Apps Store
Data ingested on:
2026-06-11
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.
Developed by:
ANDREW MORRISON
Apple Apps Store
https://apps.apple.com/de/app/amateur-digital/id6758855045?l=en-GB
Website:
https://w2asm.com/amateur-digital/

User Reviews

Ok so yeah you have the other digital modes, Great amazing. But if you added APRS it would be five stars from me especially if you add ft modes and DMR and sstv this would be THE amateur digital app. All I’m saying is to add the modes that tech class liscensees can use (Other than rattlegram)
by KM*****, 2026-04-12
View all user reviews ›

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