Apps Like RST Decoder for iPhone and iPad
Decode Morse code from your microphone
Decode Morse code from microphone input. Practice sending codes and check accuracy. Adjust signal strength and speed for better decoding. Sync with 5-10 characters for accurate timing.
RST Decoder screenshots
Ranked alternatives
Showing 101–120 of 1,000 ranked alternatives.


Blunami Classic
BlueRail Trains LLC
Control locomotives with DCC decoders
Control locomotives with DCC decoders via Bluetooth. Adjust speed, direction, and sound effects. Manage multiple trains simultaneously. View real-time status and send commands through a mobile interface.

Audio RTA
DEXUS Pawel Krzywdzinski
Analyze frequency response
Analyze signals with real-time octave RTA. Display frequency response using RMS values across full, 1/3, 1/6, and 1/12 bands. Measure SPL in dBFS. Support FFT with adjustable window sizes. Sample at 44.1kHz, 48kHz, or 96kHz.


SoundMeter X
Faber Acoustical, LLC
Record sound, log levels, analyze spectra
Measures sound levels and logs data as a noise dosimeter. It functions as a spectrum analyzer, signal generator, and multi-channel recorder. Users can calibrate audio inputs and select input paths.

Find Lost Device Cell Tracker
AppFabric LLC
Track Bluetooth devices and locate them nearby
Track Bluetooth devices by monitoring signal strength. Locate items by moving to areas with stronger signals. Access premium features via a subscription for automatic renewals and account management options.



SDR-Control for Icom
Marcus Roskosch
Control transceivers remotely
Control transceivers remotely via iPad. Adjust frequencies, manage modes, and monitor signal strength. Access settings and logs. Supports IC-705, IC-7610, IC-9700, IC-7760, IC-R8600, and IC-7300 MK2. Run on iOS 17 and later.



Audio Analyzer
DEXUS Pawel Krzywdzinski
Analyze signals in real time
Analyze signals with real-time spectrogram, spectrum, and oscilloscope visualizations. Identify frequencies and measure response of equipment. Detect phonetic elements in speech and visualize animal calls. Check singer’s formant for vocal analysis.


Tone Gen Pro
Ibrahim Al-Sammarraie
Udio signals with custom parameters
Udio signals with adjustable parameters and frequency up to 20 kHz. Create single signals, sweeps, or merged signals. Control duty cycle, frequency, and waveform type. Export generated audio files.


Find my Pods: Track Device
Arina Rudneva
Lost devices instantly
Locate lost devices by scanning nearby Bluetooth signals. Check distance and signal strength to guide your search. Save devices for quick access. real-time location updates.

AUFX:PeakQ
Kymatica AB
Equalize audio with precise control
A 4-band parametric stereo equalizer with peak, low-shelf, and high-shelf filters. Adjust gain, frequency, and Q for each band. View real-time frequency response graphs. Apply effects for subtle enhancements or aggressive boosting.



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