---
title: "Audio Function Generator PRO - Reviews, Revenue and Downloads in United States | Apple App Store"
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 f"
---

# Audio Function Generator PRO — United States
> Frequency and Signal Generator

![Audio Function Generator PRO App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/5c/30/18/5c301810-155c-7496-4afe-535c8dd0a56e/AppIconPRO-0-0-1x_U007epad-0-1-0-sRGB-85-220.jpeg/434x0w.png)

**Developer:** [Thomas Gruber](https://apptail.io/developer/thomas-gruber-Lh)
**Category:** Music
**Rating:** 4.8/5 (269 ratings)
**Price:** $9.99
**Bundle ID:** at.tomgru.functiongeneratorpro
**Store:** Apple App Store
**Country:** United States
**Version:** 9.3.0 (released 2026-09-02)
**Original Release:** 2014-07-15
**Languages:** English, French, German, Japanese, Korean, Portuguese, Chinese, Spanish

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id895074703)
**AppTail Page:** [https://apptail.io/app/audio-function-generator-pro-wYLe/united-states](https://apptail.io/app/audio-function-generator-pro-wYLe/united-states)

## Audio Function Generator PRO 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

## Audio Function Generator PRO Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/f3/54/0a/f3540a34-aaef-7439-04d7-0d5a848369d2/836c22c6-2901-4be5-a197-cfaa6756c985_1-screenshot-en-pro.jpg/1242x2208.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/25/0e/e9/250ee96b-545f-f162-5648-3e1f04191c17/2809d263-ff83-4a24-ba78-baaceb914f12_2-screenshot-en.jpg/1242x2208.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/0e/db/38/0edb385f-af84-a123-0246-85b163563206/be6f8ef4-8c47-4bfc-89fa-39184b6e0c6e_3-screenshot-en.jpg/1242x2208.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/a1/4c/cd/a14ccd1c-5fed-f1d8-949b-81abafaa4d5e/5593075a-f155-4aa1-a012-50c7e59a8112_4-screenshot-en.jpg/1242x2208.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/fa/9a/57/fa9a57a1-7c16-48f3-74a8-9c626f72e52d/7fc0dd8a-c1c3-49d1-891f-50c44ab846b9_5-screenshot-en.jpg/1242x2208.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/1d/d3/ab/1dd3ab16-2020-686c-4716-e199616cb562/46868338-ec39-4e86-93d6-d99e0e7f761b_6-screenshot-en.jpg/1242x2208.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/d3/fc/e7/d3fce72f-81d5-ee45-5172-36baabf9f283/29f867ff-056f-45e0-807c-c0ffece41507_7-screenshot-en.jpg/1242x2208.png)
- [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/88/f5/f7/88f5f705-d660-9b45-047d-64732ff1208d/475afdfa-ae1a-4bbf-82b3-ffe9019c3635_8-screenshot-en.jpg/1242x2208.png)
- [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/a5/42/50/a5425099-949a-c00a-c6b2-b09f7eef5860/f6323b5e-20f6-4c1d-9ae6-900fd478038c_9-screenshot-en.jpg/1242x2208.png)

## Audio Function Generator PRO Rating Breakdown in United States
- 5 stars: 237 (88%)
- 4 stars: 18 (7%)
- 3 stars: 7 (3%)
- 2 stars: 3 (1%)
- 1 stars: 4 (1%)

## Audio Function Generator PRO Reviews in United States

### ****- "Good app!!"
Good app
-- Flashgordo1, 2024-08-14

### ***** "amazing app"
elegant and sophisticated 😎
-- DoesYouDreamOfElectricSheep, 2024-07-10

### ***** "Versatile"
I’d been using the basics but recently needed something pretty weird.  The 48 customizable presets and the BPM modulation feature allowed me to achieve what I needed.  A GREAT app.  Thank you!
-- Mikemarz2, 2023-12-06

### **--- "Too linear."
If you want more stars please explain how to get logarithmic sweeps and logarithmic scale for the frequency slider. 
A linear sweep is pretty useless in the audio world.
-- Ro_bert, 2023-03-20

### ***** "So good!"
This app is a fantastic helper! 
Great interface and fast responses with technical questions.
-- FlyinUp, 2023-03-10

### ***** "528hz, 432hz healing audio & binaural beats"
This app makes it easy to play 528hz, 432hz, Solfeggio tones, white noise and other custom audio frequencies for healing and any other audio production, meditation or enjoyment purpose. 

Any creative audio professional should get ahold of this app, especially if you want to use non-standard tunings. I use it to match tones, tune songs, audio files and instruments by ear, play true binaural beats, match frequencies on my modular Synthesizer and more. It’s my go-to reference for 432hz, 528hz and Solfeggio tones for my music.

Thanks for making this app! 

 - DJ Soulfeggio
-- phpguru, 2021-11-25

### ***** "Does everything I wanted"
Awesome app to test and tune your set up or just to test the capabilities of your speakers. I like to use my finger to slide through the frequencies.
-- abelsanti, 2021-08-31

### ***** "Screwy Volume"
Screwy volume when using the iPhone side buttons. Jumps up and down by 6 or more, also displays wrong volume level (sometimes even shows “muted” when not). NEEDS to be increased and decreased by 1. Slider works fine but I very much dislike sliders especially when they’re that small. Other than that nice app with lots of features. Using on iPhone 12 Pro and iPad Pro 9.7, same issue on both. Please fix! Will change to 5⭐️ when this issue is fixed.  

Update: I wasn’t aware the volume button issue was an Apple limitation. Hats off to the developers for being so attentive to the end users. Outstanding app! Money well spent.
-- PreviousBBUser, 2021-06-06

### ***** "Outstanding App!"
The details and options of controlling sound waves is more than you could ask for in a iOS app! It’s pure mathematics in your hand... and ears! Although I have many technical/scientific uses for it, I like to set up a deep-bass, oscillation, multiphase-waveform as I lay on a couch with a subwoofer underneath - a fully customizable back massage... the ultimate no-contact TENS device! Thank you to the developer for keeping it up all these years!
-- LGLB, 2021-02-03

### ***** "Best bang for the buck, 2nd only to..."
Tom Gruber’s other application Multitone Pro. All his applications are phenomenal though; especially the EE Toolkit! 

The only suggestions I have are to enable ping-pong sweeps in the Multitone windows and to allow sweeping of the noise/adding noise in the Multitone sweep (with a sweeping bandpass filter).
-- ZaetH33, 2020-12-19

[View all Audio Function Generator PRO reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)


## Audio Function Generator PRO Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Paid | Denmark | Music | #10 |
| Top Paid | South Korea | Music | #11 |
| Top Paid | Australia | Music | #14 |
| Top Paid | Canada | Music | #41 |
| Top Paid | Germany | Music | #49 |
| Top Paid | Algeria | Music | #66 |
| Top Paid | Denmark | Overall | #70 |
| Top Paid | Finland | Music | #105 |
| Top Paid | South Korea | Overall | #116 |
| Top Paid | Austria | Music | #130 |
| Top Paid | Dominican Republic | Music | #161 |
| Top Paid | Australia | Overall | #166 |
| Top Paid | Greece | Music | #189 |
| Top Paid | Taiwan | Music | #200 |
| Top Paid | South Africa | Music | #204 |
| Top Paid | Switzerland | Music | #209 |
| Top Paid | Ecuador | Music | #213 |
| Top Paid | Hungary | Music | #221 |
| Top Paid | Kazakhstan | Music | #223 |
| Top Paid | Vietnam | Music | #232 |
| Top Paid | Thailand | Music | #244 |

## Audio Function Generator PRO Discovered Keywords
- audio function generator
- function generator
- diapason audio generator
- audio function generator pro


## Audio Function Generator PRO Available In
- [United States](https://apptail.io/app/audio-function-generator-pro-wYLe/united-states)
- [Germany](https://apptail.io/app/audio-function-generator-pro-wYLe/germany)
- [United Kingdom](https://apptail.io/app/audio-function-generator-pro-wYLe/united-kingdom)
- [Australia](https://apptail.io/app/audio-function-generator-pro-wYLe/australia)
- [Canada](https://apptail.io/app/audio-function-generator-pro-wYLe/canada)
- [Switzerland](https://apptail.io/app/audio-function-generator-pro-wYLe/switzerland)
- [Netherlands](https://apptail.io/app/audio-function-generator-pro-wYLe/netherlands)
- [Italy](https://apptail.io/app/audio-function-generator-pro-wYLe/italy)
- [China](https://apptail.io/app/audio-function-generator-pro-wYLe/china)
- [Austria](https://apptail.io/app/audio-function-generator-pro-wYLe/austria)
- [Brazil](https://apptail.io/app/audio-function-generator-pro-wYLe/brazil)
- [Japan](https://apptail.io/app/audio-function-generator-pro-wYLe/japan)
- [France](https://apptail.io/app/audio-function-generator-pro-wYLe/france)
- [Denmark](https://apptail.io/app/audio-function-generator-pro-wYLe/denmark)
- [Thailand](https://apptail.io/app/audio-function-generator-pro-wYLe/thailand)
- [Belgium](https://apptail.io/app/audio-function-generator-pro-wYLe/belgium)
- [Israel](https://apptail.io/app/audio-function-generator-pro-wYLe/israel)
- [Spain](https://apptail.io/app/audio-function-generator-pro-wYLe/spain)
- [India](https://apptail.io/app/audio-function-generator-pro-wYLe/india)
- [Dominican Republic](https://apptail.io/app/audio-function-generator-pro-wYLe/dominican-republic)
- [Mexico](https://apptail.io/app/audio-function-generator-pro-wYLe/mexico)
- [Vietnam](https://apptail.io/app/audio-function-generator-pro-wYLe/vietnam)
- [Finland](https://apptail.io/app/audio-function-generator-pro-wYLe/finland)
- [Singapore](https://apptail.io/app/audio-function-generator-pro-wYLe/singapore)
- [Norway](https://apptail.io/app/audio-function-generator-pro-wYLe/norway)
- [Greece](https://apptail.io/app/audio-function-generator-pro-wYLe/greece)
- [Peru](https://apptail.io/app/audio-function-generator-pro-wYLe/peru)
- [Hong Kong SAR China](https://apptail.io/app/audio-function-generator-pro-wYLe/hong-kong)
- [Romania](https://apptail.io/app/audio-function-generator-pro-wYLe/romania)
- [Hungary](https://apptail.io/app/audio-function-generator-pro-wYLe/hungary)
- [Colombia](https://apptail.io/app/audio-function-generator-pro-wYLe/colombia)
- [Taiwan](https://apptail.io/app/audio-function-generator-pro-wYLe/taiwan)
- [Chile](https://apptail.io/app/audio-function-generator-pro-wYLe/chile)
- [Sweden](https://apptail.io/app/audio-function-generator-pro-wYLe/sweden)
- [South Africa](https://apptail.io/app/audio-function-generator-pro-wYLe/south-africa)
- [Portugal](https://apptail.io/app/audio-function-generator-pro-wYLe/portugal)
- [South Korea](https://apptail.io/app/audio-function-generator-pro-wYLe/south-korea)
- [Ukraine](https://apptail.io/app/audio-function-generator-pro-wYLe/ukraine)
- [Argentina](https://apptail.io/app/audio-function-generator-pro-wYLe/argentina)
- [Poland](https://apptail.io/app/audio-function-generator-pro-wYLe/poland)
- [Czechia](https://apptail.io/app/audio-function-generator-pro-wYLe/czechia)
- [Ecuador](https://apptail.io/app/audio-function-generator-pro-wYLe/ecuador)
- [Malaysia](https://apptail.io/app/audio-function-generator-pro-wYLe/malaysia)
- [Indonesia](https://apptail.io/app/audio-function-generator-pro-wYLe/indonesia)
- [Ireland](https://apptail.io/app/audio-function-generator-pro-wYLe/ireland)
- [Slovenia](https://apptail.io/app/audio-function-generator-pro-wYLe/slovenia)
- [Armenia](https://apptail.io/app/audio-function-generator-pro-wYLe/armenia)
- [Angola](https://apptail.io/app/audio-function-generator-pro-wYLe/angola)
- [Azerbaijan](https://apptail.io/app/audio-function-generator-pro-wYLe/azerbaijan)
- [Bulgaria](https://apptail.io/app/audio-function-generator-pro-wYLe/bulgaria)
- [Bahrain](https://apptail.io/app/audio-function-generator-pro-wYLe/bahrain)
- [Belarus](https://apptail.io/app/audio-function-generator-pro-wYLe/belarus)
- [Belize](https://apptail.io/app/audio-function-generator-pro-wYLe/belize)
- [Cyprus](https://apptail.io/app/audio-function-generator-pro-wYLe/cyprus)
- [Algeria](https://apptail.io/app/audio-function-generator-pro-wYLe/algeria)
- [Estonia](https://apptail.io/app/audio-function-generator-pro-wYLe/estonia)
- [Egypt](https://apptail.io/app/audio-function-generator-pro-wYLe/egypt)
- [Grenada](https://apptail.io/app/audio-function-generator-pro-wYLe/grenada)
- [Ghana](https://apptail.io/app/audio-function-generator-pro-wYLe/ghana)
- [Croatia](https://apptail.io/app/audio-function-generator-pro-wYLe/croatia)
- [Iceland](https://apptail.io/app/audio-function-generator-pro-wYLe/iceland)
- [Jamaica](https://apptail.io/app/audio-function-generator-pro-wYLe/jamaica)
- [Jordan](https://apptail.io/app/audio-function-generator-pro-wYLe/jordan)
- [Kenya](https://apptail.io/app/audio-function-generator-pro-wYLe/kenya)
- [Kuwait](https://apptail.io/app/audio-function-generator-pro-wYLe/kuwait)
- [Cayman Islands](https://apptail.io/app/audio-function-generator-pro-wYLe/cayman-islands)
- [Kazakhstan](https://apptail.io/app/audio-function-generator-pro-wYLe/kazakhstan)
- [Lebanon](https://apptail.io/app/audio-function-generator-pro-wYLe/lebanon)
- [Sri Lanka](https://apptail.io/app/audio-function-generator-pro-wYLe/sri-lanka)
- [Lithuania](https://apptail.io/app/audio-function-generator-pro-wYLe/lithuania)
- [Luxembourg](https://apptail.io/app/audio-function-generator-pro-wYLe/luxembourg)
- [Latvia](https://apptail.io/app/audio-function-generator-pro-wYLe/latvia)
- [Madagascar](https://apptail.io/app/audio-function-generator-pro-wYLe/madagascar)
- [North Macedonia](https://apptail.io/app/audio-function-generator-pro-wYLe/north-macedonia)
- [Malta](https://apptail.io/app/audio-function-generator-pro-wYLe/malta)
- [Namibia](https://apptail.io/app/audio-function-generator-pro-wYLe/namibia)
- [Nigeria](https://apptail.io/app/audio-function-generator-pro-wYLe/nigeria)
- [Nepal](https://apptail.io/app/audio-function-generator-pro-wYLe/nepal)
- [New Zealand](https://apptail.io/app/audio-function-generator-pro-wYLe/new-zealand)
- [Philippines](https://apptail.io/app/audio-function-generator-pro-wYLe/philippines)
- [Pakistan](https://apptail.io/app/audio-function-generator-pro-wYLe/pakistan)
- [Saudi Arabia](https://apptail.io/app/audio-function-generator-pro-wYLe/saudi-arabia)
- [United Arab Emirates](https://apptail.io/app/audio-function-generator-pro-wYLe/united-arab-emirates)
- [Slovakia](https://apptail.io/app/audio-function-generator-pro-wYLe/slovakia)
- [Senegal](https://apptail.io/app/audio-function-generator-pro-wYLe/senegal)
- [Türkiye](https://apptail.io/app/audio-function-generator-pro-wYLe/turkey)
- [Uganda](https://apptail.io/app/audio-function-generator-pro-wYLe/uganda)
- [Uzbekistan](https://apptail.io/app/audio-function-generator-pro-wYLe/uzbekistan)

---

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