QSO Transcriber

QSO Transcriber is an on-device tool for amateur radio operators to listen to, record, transcribe, review and document received radio communications. IMPORTANT: QSO Transcriber is not a radio transmitter, communication service, streaming service or media-distribution platform. It does not transmit radio signals, make calls, connect to online radio streams, download third-party media or rebroadcast radio content. It only processes radio audio supplied by the user through the iPhone microphone from a nearby radio speaker, or from a user-selected audio file. LISTEN — LIVE TRANSCRIPTION Transcribes received radio audio in real time without creating a recording or saved QSO. Processing takes place on the device using supported Apple speech technology. RECORD — CAPTURE A QSO Records received radio audio while creating a time-indexed transcription. Frequency and operating mode can be entered before recording. Recording is explicitly started by the user and intended for foreground use. ON-DEVICE TRANSCRIPTION Speech recognition uses supported Apple on-device speech models. Audio and transcripts are not uploaded to QSO Transcriber servers. A language model may need to be downloaded. QSO DETECTION & ENHANCED TRANSCRIPT Local analysis can suggest callsigns, signal reports, names, locations/QTH, grid locators and other QSO information. Suggestions can be reviewed and corrected before saving. The original transcript is retained. VOICE & CW Voice audio can be transcribed on-device. QSO Transcriber also includes local CW decoding for supported Morse-code audio. Imported audio can be analyzed as Voice, CW or Auto where supported. AUDIO CLEANING Selectable modes help process weak or noisy radio audio for transcription while preserving the original recording. IMPORT AUDIO FILES Import radio recordings through Apple’s Files interface. Supported formats include MP3, M4A, WAV and CAF. Imported files use the same local transcription, CW analysis, QSO detection, review and playback workflow. Import does not activate the microphone. REVIEW, EDIT & LOGBOOK Review recordings or imported files before saving. Edit detected values and QSO details while keeping the original audio and transcript available. Saved QSOs are stored locally with log data, transcript, detected values, notes and recording. PLAYBACK & TRANSCRIPT SYNC Replay recordings with the Enhanced Transcript. Features include play/pause, ±1/±10 second navigation, variable speed, precision scrubbing, time-linked navigation and follow mode. Where timestamps exist, transcript passages and evidence link to the corresponding audio. LOCAL QSO ANALYSIS Review detected values with the transcript and corresponding audio evidence before accepting or correcting them. EXPORT & USER-CONTROLLED SHARING Export QSO data, including ADIF. User-requested exports may include QSO information, transcripts and recordings. Export uses the iOS share interface, and the user chooses the destination. QSO Transcriber does not provide public audio hosting, broadcasting, streaming or media distribution. PRIVACY & LOCAL STORAGE • No account required • No advertising • No tracking or developer analytics • No cloud transcription • No external callsign lookup required • QSO audio, transcripts and log information are stored locally Settings include storage information, data export and deletion of logs and recordings. ACCESS Where offered, a 14-day Full Access trial is explicitly started by the user. It does not automatically renew or charge the user. Permanent Full Access is available through a one-time In-App Purchase. There is no subscription. REQUIREMENTS Requires iOS 26+. Recognition accuracy varies with radio conditions, language and audio quality. Detected QSO information should be reviewed before saving.