Comparison

RST Scope vs Ham Mixer Mobile

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

RST Scope

This utility app provides spectrum scope and waterfall displays for amateur radio operators. It enhances radios lacking these features by analyzing microphone input, allowing for clear distinction of Morse code and detailed audio frequency visualization.

Highlights
  • Spectrum scope and waterfall display
  • Morse code distinction via FFT
  • Adjustable waterfall speed
  • Adjustable audio input level
  • Switchable display band (wide/narrow)
  • Display pause function
  • Recording and playback of input sound
Read full description

This is an app for amateur radio operators with a narrow band of audio frequency, spectrum scope & waterfall display. You can get a rich display by microphone inputting the speaker output of a radio that does not have a spectrum scope or waterfall function. The FFT allows you to distinguish between the dot and dash of Morse code. [function] 1. Ability to change the speed of the waterfall 2. Ability to adjust the level of audio input 3. Function to switch the display band between wide and narrow 4. Display pause function (pause / cancel by touching the screen) 5. Function to switch the cross hatch ON / OFF by longTap 6. Frequency resolution is fixed at 40Hz. 7. Function to switch the USB/LSB by Left/Right Swipe 8.Recording/Playback function of Input Sound RST Scope(Free) https://www.youtube.com/watch?v=1s9RvOFp52g

About

Ham Mixer Mobile

Transform your iPhone into a remote control for your ham radio station. Operate your transceiver from anywhere with real-time audio, full control, and low latency. Features include advanced tuning, band switching, mode control, and a spectrum scope.

Highlights
  • Remote transceiver control
  • Real-time spectrum waterfall
  • Voice memory and CW keyer
  • QSO logging with ADIF export
  • Microphone DSP for TX audio
  • WebSDR audio mixing
  • DX cluster integration
Features
Read full description

HamMixer Mobile turns your iPhone into a full remote control for your ham radio station. Connect securely to HamMixer Server at your home QTH and operate your transceiver from anywhere in the world -- with real-time audio, full radio control, and near-zero latency. Designed by CT7BAC, a licensed ham operator, for ham operators. REMOTE RADIO CONTROL - Set frequency with a velocity-sensitive tuning wheel and haptic feedback - Switch bands (160m-6m) with one tap and automatic band memory recall - Change modes: LSB, USB, CW, AM, FM - Toggle DSP controls: NB, NR, ANF, Preamp, AGC, IF Filter - Adjust RF power, control the antenna tuner, exchange VFO A/B - Real-time S-meter with peak hold, TX power and SWR indicators - 7-segment frequency LCD with live band plan display REAL-TIME WATERFALL Full-screen landscape spectrum scope with drag-to-tune, frequency snapping, adjustable contrast, and edge cycling. Native Icom scope data streamed over the network. VOICE MEMORY & CW KEYER - 8 customizable voice memory buttons (M1-M8) for voice keyer playback. In CW mode, buttons switch to programmable CW macros. - Character-by-character text-to-morse keying with adjustable speed (6-48 WPM). The radio handles all timing -- immune to network latency. - Connect a CW paddle to the BLE accessory module for real iambic keying (Mode A/B) with low-latency local sidetone. The keyer runs on your phone -- network latency does not affect your timing. QSO LOGGING Tap the frequency display to open a dedicated log screen. Band, mode, and frequency auto-fill from live radio state. Scroll-wheel time pickers and RST selectors. Includes its own PTT button and CW entry so you can keep working the contact while logging. - Saves to portable ADIF 3.1.4 file (compatible with Log4OM, HRD, and others) - Optional automatic upload to QRZ.com Logbook MIC DSP Shape your TX audio before it hits the radio: - Mic gain (0-20 dB) - Compressor with adjustable ratio - Noise gate with envelope follower - 8-band parametric equalizer (80 Hz - 3.2 kHz) - Real-time mic level meter and test recording with playback - Monitor button for live loopback through headphones WEBSDR AUDIO MIXER Mix live WebSDR receiver audio with your radio audio directly on your phone: - Stereo output: radio on left, WebSDR on right (Android) - Independent volume and mute per channel with real-time level meters - Adjustable delay (0-1500ms) with one-tap GCC-PHAT audio synchronization - Automatic frequency and mode tracking — WebSDR follows your radio - Embedded WebSDR page view with pinch-to-zoom - Configurable WebSDR and KiwiSDR site list DX CLUSTER - Real-time spots - DXCC resolution - one-tap tune-and-log ENCRYPTED & RELIABLE - TLS 1.2+ encrypted control channel - AES-128-CTR encrypted audio stream with per-session keys - Opus codec at 48 kHz / 48 kbps for broadcast-quality radio audio - Automatic reconnection on network drops - Background audio keeps playing during phone calls and multitasking - Built-in network diagnostics: latency, jitter, and UDP connectivity tests ADDITIONAL FEATURES - PTT lock and VFO lock to prevent accidental transmission or tuning - Audio auto-mute during phone calls - Settings backup & restore - Multiple saved server profiles - Remote radio power off - BLE accessory module: wireless VFO encoder, PTT/TUNE buttons, and CW paddle jack (Raspberry Pi Pico W) - Keep screen on option SUPPORTED RADIOS - Icom transceivers with CI-V protocol: IC-705, IC-7100, IC-7300, IC-7610, IC-7760, IC-7851, IC-9700, and more. - Kenwood TS-590S/SG. - Automatic model detection. REQUIREMENTS HamMixer Server (Windows) must be running at your home station, connected to your radio via USB. The server is included in the HamMixer Full Bundle license ($39.80 one-time). The mobile app itself is free. Visit http://www.ct7bac.com for documentation, setup guides, and a 14-day free trial of the desktop suite.

Screenshots

RST Scope3 screens
Ham Mixer Mobile4 screens

Verdict

The call

The clearest difference is rating: RST Scope at 5.0 against Ham Mixer Mobile's 3.0. Ham Mixer Mobile's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

RST Scope holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

UpkeepUpdate frequency

RST Scope ships an update every 3 days, Ham Mixer Mobile every 2 days. The most recent releases landed on October 13, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 6 level
RST Scope versus Ham Mixer Mobile: the parameters behind the verdict, then further details
ParameterRST ScopeHam Mixer Mobile
PriceFreeFree
Rating5.0 (1 ratings) — better3.0 (2 ratings)
Number of ratings12 — better
Update frequencyEvery 3 daysEvery 2 days — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.614.0 — better
Further details — not scored
Size5 MB23 MB
Age rating4+4+
Developerkoji kamogawaTecGPS Sistemas de Rastreamento Ltda

In-app purchases

None

RST Scope

No in-app purchases

None

Ham Mixer Mobile

No in-app purchases

Questions

Is RST Scope free?
RST Scope is free to download, with no in-app purchases.
Is Ham Mixer Mobile free?
Ham Mixer Mobile is free to download, with no in-app purchases.
Which has better reviews, RST Scope or Ham Mixer Mobile?
RST Scope is rated higher. RST Scope averages 5.0 out of 5 from 1 ratings, while Ham Mixer Mobile averages 3.0 from 2 ratings.
Do RST Scope or Ham Mixer Mobile have ads?
RST Scope shows ads; Ham Mixer Mobile does not.
Which is updated more often, RST Scope or Ham Mixer Mobile?
RST Scope ships an update every 3 days, and Ham Mixer Mobile every 2 days. Most recently, RST Scope was updated on October 13, 2026 and Ham Mixer Mobile on October 28, 2026.

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