Demod Downloads & RevenueDemod: SDR Receiver · App Store
Demod: SDR Receiver is #153 in Utilities Paid in United States and charting in 3 of 30 countries we track.
Updated 11 Nov 2026 · rankings refresh through the day
DeveloperAlphonse Romero
CategoryUtilities
Price9.99 USD
Released
Rating★ 5.0 (7)
Version1.6
Age rating4+
First seen by us
25 Sep 2026
25 Sep 2026Installs (est.)500+ worldwide
Demod: SDR Receiver update history & changes
Last change · 32 events since 24 Jun 2026Full timeline ↓✏️Description updated✏️New iPad screenshots📦Updated to version 1.6📈Entered the top 100📈Charting in a new country📦Updated to version 1.5.1🆕First spotted by AppInsider🆕Released on the App Store
Full timeline · 32 events
- ✏️Demod: SDR Receiver: description updated· IT, BR
- ✏️Demod: SDR Receiver: new iPad screenshots· IT, BR
- ✏️Demod: SDR Receiver: new screenshots9 screenshots (was 3) · IT, BR
- 📦Demod: SDR Receiver updated to version 1.6Maritime decoders, a sleep timer, and AirPlay on the main screen:
• NAVTEX — read marine text broadcasts (weather forecasts and navigational warnings) on 518 and 490 kHz. Messages are kept in a log on your device that you can copy or share.
• DSC (beta) — see digital selective calls on the MF/HF channels and VHF channel 70: who called whom, the category, and the country. DSC is marked beta until it has been checked on more real-world calls.
• WeatherFAX — receive HF weather fax charts as images, line by line. Charts line up from the start signal, save automatically on your device, and can be zoomed, rotated, and shared.
• Find them in the new Maritime row under Decoders, or under Maritime data in the band menu. NAVTEX, DSC, and WeatherFAX are receive-only and not for navigation or safety.
• Sleep timer — tap the moon to stop after 15 minutes to 2 hours, with a gentle fade-out.
• AirPlay button on the main screen — send Demod to a HomePod or another AirPlay speaker in one tap.
• Fixed: on rtl_tcp and SpyServer, pressing Stop and then Play after a retune could leave Demod listening beside the frequency shown.… more - ✏️Demod: SDR Receiver: new iPad screenshots· BR
- ✏️Demod: SDR Receiver: new screenshots3 screenshots (was 3) · BR
- 📈Demod: SDR Receiver entered the top 100Top Paid · Utilities · IN
- 📈Demod: SDR Receiver charting in a new countryIndia
- 📦Demod: SDR Receiver updated to version 1.5.1Morse 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.… more - ✏️Demod: SDR Receiver: new iPad screenshots· RU
- ✏️Demod: SDR Receiver: new screenshots3 screenshots (was 3) · RU
- 📈Demod: SDR Receiver entered the top 100Top Paid · Utilities · US
- 📈Demod: SDR Receiver charting in a new countryUnited States
- 📈Demod: SDR Receiver entered the top 100Top Paid · Utilities · IT
- 📈Demod: SDR Receiver charting in a new countryItaly
- ✏️Demod: SDR Receiver: new screenshots3 screenshots (was 3) · DE
- 📈Demod: SDR Receiver entered the top 100 in 2 chartsTop Paid · Utilities · GB · Top Paid · Utilities · SA
- 📈Demod: SDR Receiver charting in a new country in 2 chartsUnited Kingdom · Saudi Arabia
- ✏️Demod: SDR Receiver: new screenshots3 screenshots (was 3) · AU
- 📈Demod: SDR Receiver charting in a new countryTurkey
- ✏️Demod: SDR Receiver: new screenshots3 screenshots (was 3) · CA
- ✏️Demod: SDR Receiver: new screenshots3 screenshots (was 3) · FR
- ✏️Demod: SDR Receiver: app got bigger5 MB → 6 MB (+12%)
- 📦Demod: SDR Receiver updated to version 1.5Demod 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.… more - 📈Demod: SDR Receiver entered the top 100Top Paid · Utilities · BR
- 📈Demod: SDR Receiver new best rank in the overall chart: #121Top Paid · All Apps · RU
- 📈Demod: SDR Receiver charting in a new country in 2 chartsBrazil · Russia
- 📈Demod: SDR Receiver entered the top 100 in 2 chartsTop Paid · Utilities · RU · Top Grossing · Utilities · RU
- 📈Demod: SDR Receiver entered the top 100Top Paid · Utilities · DE
- 🆕Demod: SDR Receiver first spotted by AppInsider#68 in Top Paid · Utilities · Japan
- 📦Demod: SDR Receiver version 1.4New 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.… more - 🆕Demod: SDR Receiver released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
5.0 ★
7 ratings
Measured
Best rank now
#153
Utilities PaidMeasured
New ratings a week
1.2
App Store, 4-week average
Measured
Demod: SDR Receiver on the App Store
App details
App ID
6782193839
Publisher
Alphonse Romero
On the store since
Jun 2026
Under a year
Minimum OS
iOS 17.0+
iPhone XS and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
1
EN
Size
7 MB
Also listed in
Entertainment
Demod: SDR Receiver downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Where Demod: SDR Receiver's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| United States | UtilitiesPaid | #153 |
 Brazil | UtilitiesPaid | #84 |
 Italy | UtilitiesPaid | #66 |
Apps near Demod: SDR Receiver on the chart
Utilities Paid, around #153.
Ratings
App Store, worldwide.
Rating
5.0 ★
7 ratings
Measured
Ratings
7
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
1.2
4-week average
Lifetime rating
4.6★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
57/100
faster than 62% of Utilities apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About Demod: SDR Receiver
Demod turns your iPhone into a software-defined radio receiver. Connect to an SDR server on your own network or anywhere on the internet and explore the airwaves — from shortwave broadcasts and ham radio to aircraft, marine, and FM.
Demod is a client for the most common SDR servers:
• rtl_tcp — for RTL-SDR dongles
• SpyServer — for Airspy and RTL-SDR
• KiwiSDR — HF web receivers
• OpenWebRX — web SDRs (HF, VHF and UHF)
There's no hardware to plug into your phone. Point Demod at a server you run (a Raspberry Pi, PC, or Mac with an SDR dongle), or browse hundreds of public servers around the world and start listening in seconds.
FEATURES
• Real-time waterfall and spectrum display — Metal-accelerated and smooth
• Pinch to zoom, drag to tune, two-finger pan
• AM, NFM, WFM, USB, LSB, and CW demodulation
• Decode CW (Morse), RTTY, PSK31, and FT8 on-screen (beta)
• Maritime decoders: NAVTEX text broadcasts, DSC calls on MF/HF and VHF channel 70 (beta), and WeatherFAX charts saved as images — receive-only, not for navigation or safety
• Time-Shift: pause and rewind live radio, DVR-style
• Record what you hear — with a pre-roll of the moment you tapped
• Live Text: on-device transcription of what you're listening to, with on-device translation of the captions (iOS 18+) and a full-screen transcript reader
• Identify: one-tap "what is this signal?" — measures the signal on-device, matches it against a built-in band plan, and suggests the right mode (works with Siri: "ask Demod what this signal is")
• Scanner: scan your memories, a band range, or let Smart scan find active signals across the captured spectrum
• Spectral noise reduction, noise blanker, and mains-hum notch
• Browse public KiwiSDR, OpenWebRX, and SpyServer receivers worldwide — list or map view
• Save and recall favorite frequencies — import and export as CSV
• Direct-sampling and upconverter support for HF
• AirPlay / HomePod button on the main screen, Lock Screen playback controls, and a sleep timer that fades out and stops
• Adjustable bandwidth, gain (auto or manual), squelch, and display layouts
PRIVACY
Demod collects no data. No accounts, no tracking, no ads. Recording, transcription, translation, and signal identification all run entirely on your device — audio and text never leave it. Your settings, recordings, transcripts, decoder logs, and fax charts stay on your device, under your control.
Built for radio hobbyists, shortwave listeners, scanner enthusiasts, and ham operators who want a fast, native receiver in their pocket.
Note: Demod is a receiver client and requires an SDR server to connect to. You can use a server you run yourself or one of the many free public servers listed in the app.
Demod is a client for the most common SDR servers:
• rtl_tcp — for RTL-SDR dongles
• SpyServer — for Airspy and RTL-SDR
• KiwiSDR — HF web receivers
• OpenWebRX — web SDRs (HF, VHF and UHF)
There's no hardware to plug into your phone. Point Demod at a server you run (a Raspberry Pi, PC, or Mac with an SDR dongle), or browse hundreds of public servers around the world and start listening in seconds.
FEATURES
• Real-time waterfall and spectrum display — Metal-accelerated and smooth
• Pinch to zoom, drag to tune, two-finger pan
• AM, NFM, WFM, USB, LSB, and CW demodulation
• Decode CW (Morse), RTTY, PSK31, and FT8 on-screen (beta)
• Maritime decoders: NAVTEX text broadcasts, DSC calls on MF/HF and VHF channel 70 (beta), and WeatherFAX charts saved as images — receive-only, not for navigation or safety
• Time-Shift: pause and rewind live radio, DVR-style
• Record what you hear — with a pre-roll of the moment you tapped
• Live Text: on-device transcription of what you're listening to, with on-device translation of the captions (iOS 18+) and a full-screen transcript reader
• Identify: one-tap "what is this signal?" — measures the signal on-device, matches it against a built-in band plan, and suggests the right mode (works with Siri: "ask Demod what this signal is")
• Scanner: scan your memories, a band range, or let Smart scan find active signals across the captured spectrum
• Spectral noise reduction, noise blanker, and mains-hum notch
• Browse public KiwiSDR, OpenWebRX, and SpyServer receivers worldwide — list or map view
• Save and recall favorite frequencies — import and export as CSV
• Direct-sampling and upconverter support for HF
• AirPlay / HomePod button on the main screen, Lock Screen playback controls, and a sleep timer that fades out and stops
• Adjustable bandwidth, gain (auto or manual), squelch, and display layouts
PRIVACY
Demod collects no data. No accounts, no tracking, no ads. Recording, transcription, translation, and signal identification all run entirely on your device — audio and text never leave it. Your settings, recordings, transcripts, decoder logs, and fax charts stay on your device, under your control.
Built for radio hobbyists, shortwave listeners, scanner enthusiasts, and ham operators who want a fast, native receiver in their pocket.
Note: Demod is a receiver client and requires an SDR server to connect to. You can use a server you run yourself or one of the many free public servers listed in the app.
Latest updates
1.6
Maritime decoders, a sleep timer, and AirPlay on the main screen:
• NAVTEX — read marine text broadcasts (weather forecasts and navigational warnings) on 518 and 490 kHz. Messages are kept in a log on your device that you can copy or share.
• DSC (beta) — see digital selective calls on the MF/HF channels and VHF channel 70: who called whom, the category, and the country. DSC is marked beta until it has been checked on more real-world calls.
• WeatherFAX — receive HF weather fax charts as images, line by line. Charts line up from the start signal, save automatically on your device, and can be zoomed, rotated, and shared.
• Find them in the new Maritime row under Decoders, or under Maritime data in the band menu. NAVTEX, DSC, and WeatherFAX are receive-only and not for navigation or safety.
• Sleep timer — tap the moon to stop after 15 minutes to 2 hours, with a gentle fade-out.
• AirPlay button on the main screen — send Demod to a HomePod or another AirPlay speaker in one tap.
• Fixed: on rtl_tcp and SpyServer, pressing Stop and then Play after a retune could leave Demod listening beside the frequency shown.
1.5.1
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.
1.5
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.
Store changes
What Demod: SDR Receiver changed on its store page: name, icon, screenshots, price, size, languages, requirements.
Description updated
New iPad screenshots
New screenshots
9 screenshots (was 3)