Audio Function Generator PRO vs Sonic Hz Frequency Generator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
Sonic Hz Frequency Generator
Generate precise audio tones from 20 Hz to 20,000 Hz with various waveforms. Utilize binaural beats for meditation, sleep, and focus. Also includes a speaker cleaning function to improve audio quality.
- Pure tone generation (20 Hz - 20,000 Hz)
- Sine, square, sawtooth, triangle waveforms
- Binaural beats for sleep, focus, and meditation
- Speaker cleaning function
- Customizable presets
- Background audio playback
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Turn your iPhone into a precision audio lab. From pure sine tones to binaural healing waves, every frequency between 20 Hz and 20,000 Hz is at your fingertips. ◆ PURE TONE GENERATOR Generate exact frequencies for tuning, testing and sound design: • Sine, square, sawtooth and triangle waveforms • 20 Hz - 20,000 Hz full audible spectrum • Tune instruments to perfect pitch • Hearing test across the human range • Speaker frequency response analyzer • Dog whistle ultrasonic tones ◆ BINAURAL BEATS & BRAINWAVES Calibrated stereo beats for meditation, sleep and focus: • Delta 0.5-4 Hz — deep sleep restoration • Theta 4-8 Hz — meditation & creativity • Alpha 8-14 Hz — calm focus, stress relief • Beta 14-30 Hz — alert study sessions • Gamma 30-100 Hz — peak cognitive flow Use headphones for the full binaural effect. ◆ SOLFEGGIO HEALING FREQUENCIES Ancient healing tones at perfect digital precision: • 174 Hz — pain relief • 396 Hz — release fear • 432 Hz — natural harmonic resonance • 528 Hz — DNA repair & love frequency • 639 Hz — heart connection • 741 Hz — expression & solutions • 852 Hz — intuition awakening • 963 Hz — pineal gland activation ◆ WATER EJECT & SPEAKER CLEANER Powerful low-frequency pulse pushes water out of iPhone speakers and clears dust from grilles — works on both top earpiece and bottom speaker. Restore muffled, quiet or distorted audio in seconds. ◆ PRESETS & BACKGROUND PLAY Save unlimited custom frequencies and run tones in the background while using other apps. One-tap recall for music, study, sleep or cleaning workflows. ◆ FREE TO DOWNLOAD Essential features are free forever. Unlock unlimited presets, all waveforms and pro brainwaves with an optional subscription. — Subscription Options — • Free to download with essential features. • Unlock premium features through subscription. • Subscription auto-renews via your iTunes account 24 hours before the current period ends. • Cancel at any time via your iTunes settings (turn off auto-renewal at least 24 hours before renewal). • Refunds are not available for unused subscription time. — Terms & Privacy — By using this app you agree to our Terms of Use and Privacy Policy: Terms: https://tonegenerator.andyrgb.com/terms Privacy: https://tonegenerator.andyrgb.com/privacy
Screenshots
Verdict
The clearest difference is review sentiment: Audio Function Generator PRO at 88% against Sonic Hz Frequency Generator's 10%. Audio Function Generator PRO also leads on rating (4.8 vs 4.2) and in-app purchases (none vs 4). Sonic Hz Frequency Generator's advantage is price (Free vs $9.99). On ratings volume, device support and iOS requirement 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
Sonic Hz Frequency Generator is free to download; Audio Function Generator PRO costs $9.99 up front. Sonic Hz Frequency Generator sells 4 in-app purchases, starting at $6.99 per 7 days. Audio Function Generator PRO asks for nothing beyond the download.
Audio Function Generator PRO holds the better App Store score, 4.8 against 4.2. Both are backed by a comparable volume of ratings — 269 and 107 respectively. Written reviews point the same way: 88% of Audio Function Generator PRO's written reviews are positive against 10% of Sonic Hz Frequency Generator's.
Audio Function Generator PRO ships an update every 6 weeks, Sonic Hz Frequency Generator every 3 months. The most recent releases landed on September 21, 2026 and September 22, 2026 respectively.
| Parameter | Audio Function Generator PRO | Sonic Hz Frequency Generator |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 4.8 (269 ratings) — better | 4.2 (107 ratings) |
| Positive reviews | 87.9% of reviews — better | 10.3% of reviews |
| Number of ratings | 269 — better | 107 |
| Update frequency | Every 6 weeks — better | Every 3 months |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.5 — better | 16.6 |
| Further details — not scored | ||
| Size | 13 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Thomas Gruber | 汇杭 钟 |
Customer experience
Audio Function Generator PRO
Sonic Hz Frequency Generator
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
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- 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
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- 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
Sonic Hz Frequency Generator
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Audio Function Generator PRO
No in-app purchases
Sonic Hz Frequency Generator
- Premium · Weekly3 Days trial$6.997 Days
- Premium for 1 month$9.991 Month
- Premium for 12 months3 Days trial$29.991 Year
- Premium Version$69.99
Questions
Is Audio Function Generator PRO free?
Is Sonic Hz Frequency Generator free?
Which has better reviews, Audio Function Generator PRO or Sonic Hz Frequency Generator?
Do Audio Function Generator PRO or Sonic Hz Frequency Generator have ads?
Which is updated more often, Audio Function Generator PRO or Sonic Hz Frequency Generator?
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