Comparison

Audio Function Generator vs Sonic Pitch Sound Generator

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

Generate various audio test tones, including sine, square, triangle, and sawtooth waves. Explore frequency and volume sweeps, noise generation, and custom preset creation. Advanced features like extended frequency ranges and multi-tone playback are available with an upgrade.

Highlights
  • Generate sine, square, triangle, and sawtooth tones
  • Frequency and volume sweep generation
  • Noise generation (white, pink, violet, etc.)
  • Custom preset creation and saving
  • Extended frequency range (PRO feature)
  • Multi-tone playback (PRO feature)
Features
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 to use! AND THESE ARE THE ADVANCED SETTINGS/FEATURES (upgrade to PRO required): => 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 tutorial page: www.ee-toolkit.com/audio-function-generator

About

Sonic Pitch Sound Generator

Generate precise sound waves with adjustable frequencies and various waveform types. Use it for audio testing, insect repulsion, pet training, or as a prank tool. Features include a decibel meter and stereo sound tests.

Highlights
  • Adjustable sine, square, triangle, and sawtooth waveforms
  • Precise frequency control from 0Hz to 25kHz
  • Wave visualization
  • Insect and mosquito repellent tones
  • Dog whistle functionality
  • Stereo and bass sound tests
  • Real-time decibel meter
Features
Read full description

Sonic Wave provides sine tones and you could easily control the exact frequencies. Swipe your finger up and down to raise or lower the frequency of the tones, and directly check the frequency by professional wave visualization. Take full control of your sound with our latest update! We’ve expanded your toolkit with new waveform types—including Square, Triangle, and Sawtooth—giving you more versatility for audio testing, experiments, and cleaning. Plus, our new precision frequency adjustment with customizable sensitivity lets you fine-tune tones with pinpoint accuracy. What can I use it for? 1. Use Sonic Wave to generate different frequencies to drive insects away or produce white noises and pitch noises. 2. This app allows you to generate tones with range from 0Hz to Ultrasonic 25kHz frequency. 3. It can be used as dog whistle to train your dog, make your dog come or go away. 4. Also you can use it to stop your neighbor's dog from barking. 5. It can be used as a prank tool to annoy your classmates or friends. 6. It can be used as a repel mosquitos tool. 7. Stereo Sound Test: Easily test the left and right channels of your iPhone or iPad to ensure perfect stereo sound. 8. Bass Test: Evaluate your device’s bass performance with high-precision bass tones. 9. Decibel Meter (dB Meter): Measure the sound level around you in real time using your device’s microphone. Perfect for checking noise levels at home or in public. 10. Camera dB Test: Use your iPhone or iPad’s camera to visualize decibel levels for an added layer of precision. It’s a tiny and handy tool you need in your pocket, just download it and enjoy it! Subscription Information: Sonic Pitch Sound Generator offers an auto-renewing yearly subscription Premium at $19.99 USD/year and $5.99/week to provide you with unlimited access to all features, No Ads and premium features while you maintain an active subscription. Payment will be charged to the payment method connected to your iTunes Account when you confirm the initial subscription purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current subscription period. Your account will be charged for renewal within 24-hours prior to the end of the current period. You may manage your subscription and auto-renewal may be turned off by going to your Account Settings after purchase. Terms of service: http://pixelfoxes.com/sonic/sonic_terms_of_use.html Privacy policy: http://pixelfoxes.com/privacy_policy.html

Screenshots

Audio Function Generator4 screens
Sonic Pitch Sound Generator4 screens

Verdict

The call

The clearest difference is monetization model: Audio Function Generator at free with in-app purchases against Sonic Pitch Sound Generator's subscription. Audio Function Generator also leads on ads (none vs shown) and rating (4.7 vs 4.5). On price, review sentiment, ratings volume and update cadence 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. Audio Function Generator sells 1 one-off in-app purchase and Sonic Pitch Sound Generator sells 2 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Audio Function Generator holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 2.2K and 1.8K respectively. Written reviews point the same way: 77% of Audio Function Generator's written reviews are positive against 71% of Sonic Pitch Sound Generator's.

UpkeepUpdate frequency

Audio Function Generator ships an update every 6 weeks, Sonic Pitch Sound Generator every 5 weeks. The most recent releases landed on September 24, 2026 and September 22, 2026 respectively.

Scorecard3 real differences · 7 level
Audio Function Generator versus Sonic Pitch Sound Generator: the parameters behind the verdict, then further details
ParameterAudio Function GeneratorSonic Pitch Sound Generator
PriceFreeFree
Rating4.7 (2.2K ratings) — better4.5 (1.8K ratings)
Positive reviews77.1% of reviews — better71.5% of reviews
Number of ratings2.2K — better1.8K
Update frequencyEvery 6 weeksEvery 5 weeks — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.5 — better15.6
Further details — not scored
Size14 MB28 MB
Age rating4+4+
DeveloperThomas Gruber茂利 王

Customer experience

Audio Function Generator

All ratings2,191 ratings
Positive91.8%
Neutral3.1%
Negative5.1%
Written reviews271 reviews
Positive77.1%
Neutral6.3%
Negative16.6%

Sonic Pitch Sound Generator

All ratings1,771 ratings
Positive86.3%
Neutral5.4%
Negative8.2%
Written reviews228 reviews
Positive71.5%
Neutral6.1%
Negative22.4%

User reviews

Audio Function Generator

From 2.2K App Store ratings

What we love

  • 👍 Great app
  • 🎶 Helps with Tinnitus
  • 💯 Best app I've paid for
  • 🔍 Highly recommended
  • 🎨 Attention to detail

Room to improve

  • 🐛 Crashes
  • 💰 Deceptive/Money hungry
  • 🔒 Basic features paywalled
  • 🔒 Limited without paying
  • 🔒 Removed functionality to push paid version

Sonic Pitch Sound Generator

From 1.8K App Store ratings

What we love

  • 👍 Simple and easy to use
  • 🚀 Precise tone generation
  • 💡 Useful for testing audio equipment
  • 💡 Helpful for tinnitus sufferers
  • 💡 Effective for repelling mosquitoes and annoying people

Room to improve

  • 🐛 Sensitive slider makes it difficult to dial in precise frequencies
  • 🔍 Lack of instructions on which frequencies to use for specific purposes
  • 📢 Intrusive and frequent ads
  • 🔋 Ads can cause app crashes and drain battery
  • 🚫 Limited free functionality, requires payment to remove ads

Bugs and requests

Audio Function Generator

Reported bugs

4 issues
  • Crashes on launch
  • Volume slider issues
  • Airplay not working
  • Sound distortion when display is active

Requested features

6 requests
  • Add download/save feature for custom sounds
  • Improve sweep function (continuous mode, better frequency control)
  • Add more multi-frequency rows
  • Implement 432Hz base frequency option
  • Add phase control for noise generators
Show 1 more
  • Improve accessibility (VoiceOver support)

Sonic Pitch Sound Generator

Reported bugs

3 issues
  • Slider is too sensitive, making it hard to select precise frequencies
  • Ads sometimes play loudly and unexpectedly, potentially damaging speakers
  • App crashes when trying to close full-screen ads

Requested features

4 requests
  • Ability to save and name custom frequency presets
  • Option to manually enter exact frequency values
  • Timer or background playback mode
  • Paid ad-free version

In-app purchases

1 purchases

Audio Function Generator

One-time1
  • Upgrade to PRO$9.99
2 purchases

Sonic Pitch Sound Generator

Subscriptions2
  • Premium Weekly Subscription$5.997 Days
  • Premium Yearly Subscription$19.991 Year

Questions

Is Audio Function Generator free?
Audio Function Generator is free to download, with in-app purchases available.
Is Sonic Pitch Sound Generator free?
Sonic Pitch Sound Generator is free to download, with in-app purchases available.
Which has better reviews, Audio Function Generator or Sonic Pitch Sound Generator?
Audio Function Generator is rated higher. Audio Function Generator averages 4.7 out of 5 from 2.2K ratings, while Sonic Pitch Sound Generator averages 4.5 from 1.8K ratings.
Do Audio Function Generator or Sonic Pitch Sound Generator have ads?
Sonic Pitch Sound Generator shows ads; Audio Function Generator does not.
Which is updated more often, Audio Function Generator or Sonic Pitch Sound Generator?
Audio Function Generator ships an update every 6 weeks, and Sonic Pitch Sound Generator every 5 weeks. Most recently, Audio Function Generator was updated on September 24, 2026 and Sonic Pitch Sound Generator on September 22, 2026.

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