---
title: "Audulus 4 - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "Build synthesizers. Design sounds. Shape audio in real time. All with professional-grade, low-latency performance ready for live use — and it’s free.  Audulus gives you a complete modular environment "
---

# Audulus 4 — United States
> A Universe of Sound

![Audulus 4 App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/4b/25/0c/4b250cfc-3eec-184e-a4cd-cb114f3671e4/AppIcon-0-0-1x_U007emarketing-0-8-0-85-220.png/400x400bb.png)

**Developer:** [Audulus](https://apptail.io/developer/audulus-nhT) (United States)
**Category:** Music
**Rating:** 4.4/5 (71 ratings)
**Price:** Free
**Bundle ID:** com.audulus.audulus4
**Store:** Apple App Store
**Country:** United States
**Version:** 4.7 (released 2025-12-11)
**Original Release:** 2022-12-12

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id1592022030)
**AppTail Page:** [https://apptail.io/app/audulus-4-dXck/united-states](https://apptail.io/app/audulus-4-dXck/united-states)

## Audulus 4 Description
Build synthesizers. Design sounds. Shape audio in real time. All with professional-grade, low-latency performance ready for live use — and it’s free.

Audulus gives you a complete modular environment at no cost. Its clean, fluid interface stays out of the way so you can focus on what matters: exploring sound. A modular playground with room to grow — from first experiments to advanced designs.

Looking for more? Discover the Pro Module series: premium instruments and effects that show what’s possible when world-class sound design meets true modular freedom. Each Pro Module is crafted specifically for Audulus, giving you new ways to expand your sonic toolkit.

Available on iPhone, iPad, and Mac — your modular system travels with you.

▶ What People Are Saying:

"gem for Apple platforms – gorgeous, fluid" — Peter Kirn, createdigitalmusic.com
"stunning!" — Richard Devine, devinesound.net
"Remarkable gesture control" — sequencer.de

▶ Join our forum and Discord community!

▶ What You Get:

• Complete modular environment — free to download and explore
• Pro Module series — premium modules available as in-app purchases
• Available on iPhone, iPad, and Mac with iCloud sync
• Standalone app or AUv3 plugin
• Deep node library for building from scratch
• Extensive module library for synthesis and sound design
• Multi-channel signal flow for polyphony and complex routing
• Next-gen multi-core audio processing
• Smooth, high-performance graphics even with massive patches
• MIDI I/O with MIDI learn
• GLSL shader node for creating advanced visuals
• Lua scripting for custom DSP and vector graphics

Terms of Use: 

## Audulus 4 Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/46/b0/10/46b010d8-3b48-7b94-a4a5-2d0d9055568f/canvas_collection.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/cf/c8/03/cfc80391-0ca2-46cc-33ee-b9d07545a6b1/synths.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/ea/e5/46/eae54673-1cd6-fa3f-113c-6aef09abe6c1/sequencers.png/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/fd/17/75/fd177546-6526-4b4c-8360-33883539a27c/controllers.png/1242x2688.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/ae/ba/2a/aeba2a01-9f79-d149-fc3b-4f29dd0c67bf/IMG_7896.png/1242x2688.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/08/10/62/0810620c-abe5-497b-dc63-93e2c09bcf96/circuit.png/1242x2688.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/6e/5d/08/6e5d08dd-5a7b-e4c0-dbff-39af95fbb391/graincloud_WTA.png/1242x2688.png)
- [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/ea/b5/64/eab564af-4fdb-75e3-3ac6-2ea42666d159/IMG_7844.png/1242x2688.png)
- [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/c9/f3/97/c9f397ee-c7c3-9b6d-a646-790f80a78625/knobs_skeuo.png/1242x2688.png)

## Audulus 4 Rating Breakdown in United States
- 5 stars: 54 (76%)
- 4 stars: 5 (7%)
- 3 stars: 3 (4%)
- 2 stars: 2 (3%)
- 1 stars: 7 (10%)

## Audulus 4 Reviews in United States

### ***** "IOS18 fixed"
All is right in the Audulus universe once again. I’ve been using this app for years, since version 3. It’s incredible to see the amount of effort put into version 4 which delivers an even richer and more satisfying creative experience, more modules to work with, improved workflow and a beautifully overhauled UI.
-- Me, I'm Not, 2024-12-18

### ***** "Select and Import Buttons Do Not Work"
Fixed. Needed to update Audulus 4
-- ColinV., 2024-12-15

### ***** "Best modular synth on iOS"
This app is absolutely incredible and gives you all the tools you need to make literally any part of a synth if you want to get that involved. also an active community of people making patches so even if you just bought it to play with patches posted online, you’ve got virtually endless synths to play with.
-- Efgjjrxfgbbb, 2024-12-15

### ****- "Blank Screen On Open"
This was unfair. I was simply frustrated after dropping 20 bucks, expecting to play with something cool. I'm gonna give them a chance to fix things. As a developer myself, I fully understand the challenges. I just really want to use the app!!

Original text:
Just purchased the app. When I open, I get a black screen. That's it. My ipad is up to date. What gives? 
Really hoping the developers are responsive. I'll update my review if they fix this right away.
-- joshuabc, 2024-10-31

### ***** "Doesn’t work at all in 18.1"
Opens to the file browser, no modules, nothing. Tried deleting and reinstalling, nothing. It worked in the past and I liked it, hope I can figure this out.
-- Briwil78, 2024-10-24

### ***** "Essential for Exploration and Experimentation"
It’s wayyyyy better than max/msp and costs a tiny fraction of the price. This app is truly a gift.
-- Amphoteres, 2024-02-17

### ****- "Quality but complex and intimidating"
This is a great app with a lot of manual controls that enable users to produce tha sound they want and are looking for. My only issue is, great work on tha Shepards tone btw, my only issue is that if u already aren’t familiar with sound construction this app can be intimidating and complex and may appear a bit scattered. Not for noobies. But if ur already familiar with sound design, this is fantastic and I do recommend. Thank you for building an incredible workstation.
-- Social_integer, 2023-12-20

### ***** "Still one of the best apps ever made for music production"
In the almost decade since firstly hearing about this app. I knew it was ahead of it’s time. Even back in 2015/2016 I was always amazed at how quickly forum questions get answered. You may even luck out and get a reply from one of the actual authors of this amazing software. That is unrivaled support. Show me another app where the creators themselves are actively taking part in discussion posts. I dare you to show me one app. For anybody who is ever complaining about the need for sideloading, simply making a backup of your device will virtually ensure your ability to download a previous version. I have 3 and 4 running on the same apple device no problems. I did run into issues with my license working for 3 but it was because it was purchased on someone else’s Apple ID. I digress with my pedal board not operational, it’s insane to me how treated a guitar will sound using just this one app. Absolutely one of my favorite ways to manufacture: REVERB. I am only ever using 1% of the capacity this app will furnish and the room it puts me in is large enough to stay lost for hours at a time. Thank you very much for making this app.
-- Infinitebreakfast, 2023-12-18

### ***** "A Visual Approach to Sound Design"
Audulus is a visual tool for creating and manipulating sound. With a large selection of fundamental nodes and an even larger set of library modules, Audulus provides a wide variety of building blocks to create almost any synth or audio effect you can imagine. An active user community provides user contributed patches and modules as well as helpful advice. Version 4 has added many new features such as a graphical canvas and DSP node programmable in Lua, a shader node, MIDI I/O and other enhancements. The app continues to improve with each update. Ten out of ten!
-- HammerDulcimer, 2023-12-14

[View all Audulus 4 reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)

## Audulus 4 In-App Purchases
| Item | Price |
|------|-------|
| Audulus Pro (1 Year) | $29.99 |
| Audulus Pro (1 Month) | $4.99 |



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## Audulus 4 Available In
- [United States](https://apptail.io/app/audulus-4-dXck/united-states)
- [United Kingdom](https://apptail.io/app/audulus-4-dXck/united-kingdom)
- [Germany](https://apptail.io/app/audulus-4-dXck/germany)
- [Canada](https://apptail.io/app/audulus-4-dXck/canada)
- [Australia](https://apptail.io/app/audulus-4-dXck/australia)
- [Japan](https://apptail.io/app/audulus-4-dXck/japan)
- [Russia](https://apptail.io/app/audulus-4-dXck/russia)
- [China](https://apptail.io/app/audulus-4-dXck/china)
- [Ukraine](https://apptail.io/app/audulus-4-dXck/ukraine)
- [France](https://apptail.io/app/audulus-4-dXck/france)
- [Italy](https://apptail.io/app/audulus-4-dXck/italy)
- [India](https://apptail.io/app/audulus-4-dXck/india)
- [Denmark](https://apptail.io/app/audulus-4-dXck/denmark)
- [Greece](https://apptail.io/app/audulus-4-dXck/greece)
- [Norway](https://apptail.io/app/audulus-4-dXck/norway)
- [Switzerland](https://apptail.io/app/audulus-4-dXck/switzerland)
- [Portugal](https://apptail.io/app/audulus-4-dXck/portugal)
- [Romania](https://apptail.io/app/audulus-4-dXck/romania)
- [Singapore](https://apptail.io/app/audulus-4-dXck/singapore)
- [Spain](https://apptail.io/app/audulus-4-dXck/spain)
- [Netherlands](https://apptail.io/app/audulus-4-dXck/netherlands)
- [Peru](https://apptail.io/app/audulus-4-dXck/peru)
- [Pakistan](https://apptail.io/app/audulus-4-dXck/pakistan)
- [Poland](https://apptail.io/app/audulus-4-dXck/poland)
- [Sweden](https://apptail.io/app/audulus-4-dXck/sweden)
- [Türkiye](https://apptail.io/app/audulus-4-dXck/turkey)
- [Taiwan](https://apptail.io/app/audulus-4-dXck/taiwan)
- [Uzbekistan](https://apptail.io/app/audulus-4-dXck/uzbekistan)
- [Vietnam](https://apptail.io/app/audulus-4-dXck/vietnam)
- [Armenia](https://apptail.io/app/audulus-4-dXck/armenia)
- [South Africa](https://apptail.io/app/audulus-4-dXck/south-africa)
- [Argentina](https://apptail.io/app/audulus-4-dXck/argentina)
- [Azerbaijan](https://apptail.io/app/audulus-4-dXck/azerbaijan)
- [Belgium](https://apptail.io/app/audulus-4-dXck/belgium)
- [Bulgaria](https://apptail.io/app/audulus-4-dXck/bulgaria)
- [Brunei](https://apptail.io/app/audulus-4-dXck/brunei)
- [Chile](https://apptail.io/app/audulus-4-dXck/chile)
- [Colombia](https://apptail.io/app/audulus-4-dXck/colombia)
- [Czechia](https://apptail.io/app/audulus-4-dXck/czechia)
- [Dominican Republic](https://apptail.io/app/audulus-4-dXck/dominican-republic)
- [Ecuador](https://apptail.io/app/audulus-4-dXck/ecuador)
- [Egypt](https://apptail.io/app/audulus-4-dXck/egypt)
- [Hong Kong SAR China](https://apptail.io/app/audulus-4-dXck/hong-kong)
- [Hungary](https://apptail.io/app/audulus-4-dXck/hungary)
- [Indonesia](https://apptail.io/app/audulus-4-dXck/indonesia)
- [Ireland](https://apptail.io/app/audulus-4-dXck/ireland)
- [Israel](https://apptail.io/app/audulus-4-dXck/israel)
- [South Korea](https://apptail.io/app/audulus-4-dXck/south-korea)
- [Kazakhstan](https://apptail.io/app/audulus-4-dXck/kazakhstan)
- [Lebanon](https://apptail.io/app/audulus-4-dXck/lebanon)
- [Mexico](https://apptail.io/app/audulus-4-dXck/mexico)

---

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