Comparison

Audio Function Generator PRO vs Sound Healing

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

Head to head
About

Audio Function Generator PRO

Generate various audio test tones, including sine, square, and sawtooth waves. Explore frequency and volume sweeps, custom presets, and different types of noise. Advanced settings allow for fine-tuning signal parameters and creating complex multi-tone sequences.

Highlights
  • Generate sine, square, triangular, and sawtooth tones
  • Frequency and volume sweep generation
  • Customizable presets and configurations
  • Multiple noise types (White, Pink, Violet, etc.)
  • Advanced signal parameter control
  • Multi-tone and dual function generation
Features
Currently charting
Read full description

This is the highly recommended and praised Function Generator App - an amazingly great and powerful tone generator. Enriched with a vast amount of features yet it is extremely intuitive and designed for simplicity. Get to know this great App now! It is very well maintained and has received considerable upgrades over the past years. So, … what can you do with this App? • PLAY TEST TONES Sine, Rectangular, Triangular and Sawtooth. • PLAY FREQUENCY SWEEP TEST TONES in both directions (minimum to maximum frequency and maximum to minimum frequency). • PLAY VOLUME SWEEPS (from minimum to maximum volume). • Try the SWEEP REPEAT / WOBBLE function. • Try the MUSIC TONES PLAYBACK. • Experiment with the huge FINE TUNE SELECTON, PRESETS SELECTION! • Or create your own CUSTOM PRESETS! • And SAVE an endless amount of CONFIGURATIONS (Frequency, Sweep, Noise) for later quick access and direct playback function. • Even play back different kinds of NOISE – White, Pink, Violet, Grey, Brown, Blue is also supported. The Function Generator is AMAZINGLY INTUITIVE and SIMPLE! AND THESE ARE THE ADVANCED SETTINGS/FEATURES: => Extending The Frequency Range (1Hz - 21kHz) => Extending The Sweep Times (0.1s - 600s) => Changing Min/Max Slider Frequency Ranges => Changing Max Sweep Time Slider Range => Changing Signal Amplitude => Enabling Of The Sweep Repeat / Wobble Function => Frequency Slider Setting to Linear or Logarithmic => Left/Right Channel Individual Selection => Permanently Saving Custom Presets => Saving Of Endless Number Of Audio Configurations => Phase Out Setting (custom phase shift of the generated signal) => BPM (Beats per Minute) Feature => Dual Function Generator => MultiTone Generator (playback of up to eight individual tones) => Background Theme Selection (Light/Dark) Check out the new Tutorial page: www.ee-toolkit.com/audio-function-generator

About

Sound Healing

Features
Read full description

Sound Healing is a tool to feel (on the body) and visualize sound in a professional yet effortless way. It generates pure tones at the frequencies known from the vibrational tradition, frequencies for body areas, binaural beats — and analyzes in real time any audio captured by the microphone, showing its waveform, frequency spectrum, and spectrogram. Designed for those who practice meditation, vibrational exposure, music therapy, naturopathy, or anyone who simply wants to explore the nature of sound with a serious, intuitive, and visually polished tool. INCLUDED FREQUENCIES • Beneficial Solfeggio: 174, 285, 396, 417, 432, 528, 639, 741, 852, 963 Hz — each frequency with a traditional description of its use • Body areas: 7 frequencies associated with the body's main areas, from the base of the spine to the crown • Binaural beats: Delta, Theta, Alpha, Beta, Gamma presets (stereo headphones required) • Frequencies for organs and body systems: nose and throat, lungs and bronchi, liver and pancreas • Relaxation frequencies: 333, 444, 888, 999, 1111 Hz — high-frequency series • Themed programs: Relaxation/anxiety, Sleep, Tension, Meditation, Energy/focus — ready-to-use sequences • Custom frequencies: set any value from 20 to 20,000 Hz REAL-TIME AUDIO ANALYSIS Capture audio from your internal or external microphone and visualize: • Waveform (oscilloscope) • Frequency spectrum with FFT and labeled peaks • Waterfall spectrogram (frequency/time map) • Pitch indicator in cents (deviation from tuning) • Level meter (VU) CUSTOMIZATION • Adjustable reference tuning (432 Hz, 440 Hz) • Free selection of input and output audio devices • Playback timer with auto-stop • Binaural mixing for any frequency • Capture and save custom presets PRIVACY AND PERFORMANCE Sound Healing is a fully offline application. It does not collect, transmit, or store any data on external servers. Audio captured is analyzed in real time but never recorded. All data stays on your Mac. Compatible with macOS 13 and later. Universal binary: runs natively on Intel Mac and Apple Silicon. WHO IT'S FOR • Naturopaths, wellness practitioners, music therapists • Sound healers, users of harmonic singing bowls and tuning forks • Sound enthusiasts and acoustics lovers • Anyone looking for a visual companion to relaxation sessions DISCLAIMERS Sound Healing is a tool for sound exploration and personal wellness support. It is not a medical device and does not replace professional diagnosis, therapy, or treatment. Do not use in case of: photosensitive epilepsy or uncontrolled seizure disorders, high-risk pregnancy, pacemaker users not tested for audio stimulation, severe psychiatric conditions in acute phase. Binaural beats require stereo headphones. Keep the volume at moderate levels. For any medical condition, always consult a qualified professional. — Developed by Massimo Del Pizzo, naturopath. Website: www.massimodelpizzo.it

Screenshots

Audio Function Generator PRO4 screens
Sound Healing4 screens

Verdict

The call

The clearest difference is price: Sound Healing at $2.99 against Audio Function Generator PRO's $9.99. Audio Function Generator PRO's advantage is chart position (#188 vs unranked) and iOS requirement (15.5 vs 17.0). On update cadence, ads, in-app purchases and device support 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

Audio Function Generator PRO costs $9.99 and Sound Healing $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Audio Function Generator PRO ships an update every 6 weeks, Sound Healing monthly. The most recent releases landed on October 13, 2026 and October 6, 2026 respectively.

Scorecard3 real differences · 8 level
Audio Function Generator PRO versus Sound Healing: the parameters behind the verdict, then further details
ParameterAudio Function Generator PROSound Healing
Price$9.99$2.99 — better
Rating4.8 (269 ratings) — better—
Positive reviews87.9% of reviews—
Number of ratings269 — better—
Update frequencyEvery 6 weeksMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
Best chart rank#188 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.5 — better17.0
Further details — not scored
Size13 MB11 MB
Age rating4+4+
DeveloperThomas GruberMassimo Del Pizzo

Bugs and requests

Audio Function Generator PRO

Reported bugs

6 issues
  • Volume button issues (jumps up and down, displays wrong level)
  • Update crashes on iPad Air2 when changing screens
  • App opens AppStore repeatedly after purchase
  • Buttons don't respond, settings don't keep
  • Frequencies stick, program is useless
Show 1 more
  • App stops too much

Requested features

19 requests
  • Logarithmic sweeps and frequency slider scale
  • PWM functionality
  • Terzrauschen (third-octave noise)
  • Ping-pong sweeps in Multitone windows
  • Sweeping of noise/adding noise in Multitone sweep with sweeping bandpass filter
Show 14 more
  • Audio plugin (AU, AAX, VST)
  • Responsiveness for MacBook use
  • Simultaneous recording of generated signals
  • Panning function for tones and sweeps
  • Ability to save Multitone configurations
  • Phase shift functionality
  • Higher frequency range (up to 24kHz)
  • Dual mode sweep function
  • Taper function
  • Extended time for sweeps (6-8 hours)
  • Ability to stay at selected frequency for several minutes
  • Spectrum analyzer
  • Separate control for left and right channels
  • 8-hour program for sleep entrainment

Sound Healing

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Audio Function Generator PRO

No in-app purchases

None

Sound Healing

No in-app purchases

Questions

Is Audio Function Generator PRO free?
Audio Function Generator PRO costs $9.99, with no in-app purchases.
Is Sound Healing free?
Sound Healing costs $2.99, with no in-app purchases.
Do Audio Function Generator PRO or Sound Healing have ads?
Neither Audio Function Generator PRO nor Sound Healing shows ads.
Which is updated more often, Audio Function Generator PRO or Sound Healing?
Audio Function Generator PRO ships an update every 6 weeks, and Sound Healing monthly. Most recently, Audio Function Generator PRO was updated on October 13, 2026 and Sound Healing on October 6, 2026.

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