¥1,500
App Store で開く
iPhone / iPad 対応
5.4MB
年齢4+
Demod: SDR Receiverはどんなアプリ?
Demod: SDR Receiverは、デバイスをソフトウェア定義無線受信機に変えるアプリです。
自分のネットワーク内にある機器やインターネット上の公開サーバーと連携して、多様な電波を受信します。短波放送から航空機や船舶の通信まで、広範囲な信号をキャッチできるため、興味のある周波数を自由に探索できます。リアルタイムで変化する周波数帯を視覚的なグラフで確認しながら、ノイズを抑えてクリアな音を追いかけられます。録音した音声には自動で前後の余白が付加されるため、必要な瞬間を正確に保存することもできます。特定の信号が何であるかを瞬時に特定する機能や、過去の記憶を振り返るためのスキャン機能も備わっています。
アマチュア無線家や短波放送の愛好家など、移動中や外出先で手軽に電波の世界を探求したい場面にうってつけです。機材を持ち運ぶ代わりに、スマートフォン一つで世界中の受信機へアクセスできるため、場所を選ばず趣味の時間を充実させられます。
アノアプリによる紹介文です。デベロッパー公式の説明はApp Storeでご確認いただけます。
Demod: SDR Receiverの注目ポイント
外部サーバーとの連携による受信
自前の機器やインターネット上の公開サーバーとつながるため、場所を選ばず遠くの電波をキャッチできます。特定の機器を持ち歩かなくても、ネットワークを通じて世界中の信号を受信する環境を整えられます。
航空機や船舶から短波放送まで
航空機や船舶の通信から短波放送まで、多種多様な信号を聴取できます。趣味の範囲に合わせて、興味のある周波数帯へ自由にアクセスして探求する時間を持てます。
動的な周波数帯の視覚化
変化する周波数帯をリアルタイムのグラフで確認できる表示画面です。視覚的に状況を把握しながら、ノイズに埋もれないクリアな音を追いかけて選別できます。
録音時の自動余白付加
録音した音声の前に数秒間の時間を自動で付け足して保存します。操作した瞬間の前後を含めて記録されるため、必要な場面を逃さず正確に保存できます。
価格履歴
現在は1,500円です。記録を始めた61日前から、価格は変わっていません。
アノアプリが独自に収集した価格履歴をもとに分析しています。
- 買い時判定
- 通常価格
- 記録期間
- 61日
- 最頻価格
- ¥1,500
- 記録上の最安値
- ¥1,500
価格更新履歴
| 日付 | 価格 |
|---|---|
| 2026-09-09 | ¥1,500 |
ランキング推移
ユーティリティ(有料):最終圏内 61位(2026年09月25日)
ユーザーレビュー (当サイト投稿)
まだレビューがありません。最初のレビューを書いてみましょう。
アプリ更新履歴 活発に更新中
Ver 1.5.1 2026-10-26
Morse code (CW) that actually works:
• CW tuning fixed on KiwiSDR and OpenWebRX — tap a CW signal and you now hear it as a clean tone. Before, these receivers were listening slightly beside the signal, so you mostly
heard noise.
• A much better CW decoder — it finds the signal's exact pitch on its own, so a station you tapped a little off (or one that drifts) still decodes, and it copies weak signals far
more reliably.
• No more strings of random E's and I's on an empty frequency: the decoder only prints when a signal is there.
• The CW filter now follows the bandwidth setting.
• CW tuning fixed on KiwiSDR and OpenWebRX — tap a CW signal and you now hear it as a clean tone. Before, these receivers were listening slightly beside the signal, so you mostly
heard noise.
• A much better CW decoder — it finds the signal's exact pitch on its own, so a station you tapped a little off (or one that drifts) still decodes, and it copies weak signals far
more reliably.
• No more strings of random E's and I's on an empty frequency: the decoder only prints when a signal is there.
• The CW filter now follows the bandwidth setting.
Ver 1.5 2026-10-10
Demod in the car, a smarter Seek, and a squelch that works everywhere:
- CarPlay — listen to Demod on your car's screen. Pick a recent server or a saved station, see the band, station and country on the Now Playing screen, and use the steering-wheel buttons. Radio now plays across the car's music speakers instead of the voice speaker.
- Seek — next/previous (in the app, in the car and on your headphones) now jumps to the next real signal for the mode you're in and stops there: the next AM station, the next SSB voice, the next CW signal. It stays inside the band you're tuned to and searches the whole receiver when you're between bands.
- Siri and Shortcuts — "Tune Demod", "Play WWV in Demod" (any saved station), "Listen to (a favorite receiver) in Demod", or "Ask Demod what this signal is".
- Identify, upgraded on iOS 27 — Demod reads the waterfall itself to help work out what an unknown signal is.
- Squelch now works on KiwiSDR and OpenWebRX, and uses the same dB reading as the signal meter, so it's easy to set: put it just above the noise (thank you to our reviewer for the feedback!)
- Band plans for your country, chosen automatically from the receiver's location and editable in the app (another great feedback item!)
- More reliable listening on the move — Demod reconnects on its own after a dead zone and brings the audio back with it, and pauses for phone calls and Siri then picks up again.
- FT8 no longer misses the start of transmissions on some receivers.
- "Keep screen on while listening" option, and Recent Servers now list newest first.
- CarPlay — listen to Demod on your car's screen. Pick a recent server or a saved station, see the band, station and country on the Now Playing screen, and use the steering-wheel buttons. Radio now plays across the car's music speakers instead of the voice speaker.
- Seek — next/previous (in the app, in the car and on your headphones) now jumps to the next real signal for the mode you're in and stops there: the next AM station, the next SSB voice, the next CW signal. It stays inside the band you're tuned to and searches the whole receiver when you're between bands.
- Siri and Shortcuts — "Tune Demod", "Play WWV in Demod" (any saved station), "Listen to (a favorite receiver) in Demod", or "Ask Demod what this signal is".
- Identify, upgraded on iOS 27 — Demod reads the waterfall itself to help work out what an unknown signal is.
- Squelch now works on KiwiSDR and OpenWebRX, and uses the same dB reading as the signal meter, so it's easy to set: put it just above the noise (thank you to our reviewer for the feedback!)
- Band plans for your country, chosen automatically from the receiver's location and editable in the app (another great feedback item!)
- More reliable listening on the move — Demod reconnects on its own after a dead zone and brings the audio back with it, and pauses for phone calls and Siri then picks up again.
- FT8 no longer misses the start of transmissions on some receivers.
- "Keep screen on while listening" option, and Recent Servers now list newest first.
Ver 1.4 2026-09-15
New receivers, cleaner audio, and a better iPad:
• OpenWebRX support — connect to OpenWebRX web SDRs, a whole new network of receivers (HF and VHF/UHF) on top of KiwiSDR and SpyServer. Browse them right in the app, and on multi-band receivers just pick the band you want.
• Cleaner audio on KiwiSDR — the mains-hum filter now works on KiwiSDR and OpenWebRX and turns on automatically at the right 50 or 60 Hz for your region, so that power-line buzz is gone without any fiddling.
• Auto-contrast waterfall — the waterfall tracks the noise floor on its own as conditions change, so signals stay visible without touching the sliders.
• A more reliable server browser — Demod now checks which public receivers are actually reachable from your device and shows why one won't connect (full, offline, app access limited). Dead receivers drop to the bottom, and connections fail fast instead of hanging.
• Filter public servers by frequency coverage — quickly find a receiver that tunes the band you want (HF, VHF, UHF, or wherever you're tuned right now).
• New iPad interface — a three-pane "desktop radio": Favorites and Memories in a tap-to-tune sidebar, spectrum and waterfall in the center, every control visible at once.
• Better landscape on iPhone — a side-by-side layout that keeps the frequency and controls in reach when you rotate.
• Connect to KiwiSDRs behind HTTPS — receivers on a secure (TLS) proxy now connect. Paste the full https:// address or flip the new Secure switch.
• Cleaner live transcription — less phantom text invented from static.
• Frequency correction (PPM) for RTL-SDR dongles that run slightly off.
• Fixed the frequency display pushing controls off the edge at 100 MHz and up.
• OpenWebRX support — connect to OpenWebRX web SDRs, a whole new network of receivers (HF and VHF/UHF) on top of KiwiSDR and SpyServer. Browse them right in the app, and on multi-band receivers just pick the band you want.
• Cleaner audio on KiwiSDR — the mains-hum filter now works on KiwiSDR and OpenWebRX and turns on automatically at the right 50 or 60 Hz for your region, so that power-line buzz is gone without any fiddling.
• Auto-contrast waterfall — the waterfall tracks the noise floor on its own as conditions change, so signals stay visible without touching the sliders.
• A more reliable server browser — Demod now checks which public receivers are actually reachable from your device and shows why one won't connect (full, offline, app access limited). Dead receivers drop to the bottom, and connections fail fast instead of hanging.
• Filter public servers by frequency coverage — quickly find a receiver that tunes the band you want (HF, VHF, UHF, or wherever you're tuned right now).
• New iPad interface — a three-pane "desktop radio": Favorites and Memories in a tap-to-tune sidebar, spectrum and waterfall in the center, every control visible at once.
• Better landscape on iPhone — a side-by-side layout that keeps the frequency and controls in reach when you rotate.
• Connect to KiwiSDRs behind HTTPS — receivers on a secure (TLS) proxy now connect. Paste the full https:// address or flip the new Secure switch.
• Cleaner live transcription — less phantom text invented from static.
• Frequency correction (PPM) for RTL-SDR dongles that run slightly off.
• Fixed the frequency display pushing controls off the edge at 100 MHz and up.
Ver 1.3 2026-08-05
• KiwiSDR support — connect to KiwiSDR HF web receivers, with live audio and waterfall streamed straight from the server. Great for shortwave and the ham
HF bands when you don't have your own antenna up.
• Browse public receivers worldwide — now on a station map as well as a list
• Time-Shift — pause and rewind live radio (about 3 minutes of DVR buffer)
• Record what you hear, with a pre-roll of the moment you tapped Record
• Live Text — on-device transcription of the audio, with on-device translation of the captions (iOS 18+) and a full-screen transcript reader
• Identify — tap the new button on the waterfall to ask "what is this signal?"
• Scanner — scan memories, a band range, or let Smart scan find active signals
• Noise reduction (spectral DNR), noise blanker, and mains-hum notch
• Decoders (beta) for CW, RTTY, PSK31, and FT8 — FT8 uses a much more sensitive decoder that pulls far more signals out of a busy band
• Redesigned controls: five focused tabs instead of one long list
• Audio now resumes automatically after phone calls and Siri
• Many robustness and stability fixes throughout
HF bands when you don't have your own antenna up.
• Browse public receivers worldwide — now on a station map as well as a list
• Time-Shift — pause and rewind live radio (about 3 minutes of DVR buffer)
• Record what you hear, with a pre-roll of the moment you tapped Record
• Live Text — on-device transcription of the audio, with on-device translation of the captions (iOS 18+) and a full-screen transcript reader
• Identify — tap the new button on the waterfall to ask "what is this signal?"
• Scanner — scan memories, a band range, or let Smart scan find active signals
• Noise reduction (spectral DNR), noise blanker, and mains-hum notch
• Decoders (beta) for CW, RTTY, PSK31, and FT8 — FT8 uses a much more sensitive decoder that pulls far more signals out of a busy band
• Redesigned controls: five focused tabs instead of one long list
• Audio now resumes automatically after phone calls and Siri
• Many robustness and stability fixes throughout
