Overview

Rating:
4.30
(74)
Version:
4.7
Last updated: 2025-12-11
Ranking
#155,586 ▼ 176
Overall

Features & Capabilities

Audulus 4 is a free modular synthesizer environment for iPhone, iPad, and Mac. Build and explore sounds with a complete modular system that runs in real time with low latency, ideal for live performance and studio design.

From a standalone app or AUv3 plugin to Pro Module expansions, Audulus offers a deep node library, iCloud sync, MIDI I/O, GLSL shader nodes, and Lua scripting to tailor DSP and visuals.

User Growth & Download Statistics

By:
Audulus LLC
Rating:
4.30
(74)
Version:
4.7 Last updated: 2025-12-11
Version code:
880460681
Creation date:
2022-12-12
Compatible devices:
Size:
102.90MB
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Apple Apps Store
Data ingested on:
2026-09-20
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.
Developed by:
Audulus LLC
Apple Apps Store
https://apps.apple.com/us/app/audulus-4/id1592022030
Website:
https://audulus.com

User Reviews

Audulus 4 is praised for its powerful, flexible modular system, expansive modules, and features like MIDI I/O, Lua DSP, and shader nodes, plus strong cross‑platform support and a helpful community. Common concerns focus on monetization (paywalls/subscriptions), mobile UI glitches, limited onboarding/docs, startup stability issues, and intrusive upgrade prompts. Overall, seasoned sound designers view it as a top-tier tool, but new users may struggle with price, learning curve, and mobile usability.
Pros
  • Deep, highly capable modular environment with a large library and active community patches
  • Powerful Audulus 4 feature set adds MIDI I/O, Lua DSP node, shader node, and a canvas for flexible sound design, plus multi-core processing
  • Strong cross‑platform workflow across macOS and iPadOS with seamless integration
  • Active user community and developer support including tutorials, Discord, and patch sharing
  • Overall design and depth make it a top-tier tool for experienced sound designers
Cons
  • Paywalls and in-app purchases for modules/features (and subscription concerns) leading to ongoing costs after initial purchase
  • Mobile UI/UX issues, including buggy menus, navigation frictions, and pro/scroll gating that hinder usability
  • Lack of in-app help or thorough documentation, with few tooltips or onboarding guidance for new users
  • Startup stability issues and occasional bugs (e.g., black screens or file-browser-only launches)
  • Persistent upgrade banners and gating decisions that feel intrusive or annoying to users
Recent reviews
That being said, I must somewhat agree with other reviewers in the sense that: I actually paid for this app when it launched, and also paid for its predecessor Audulus 3. Whilst I understand that modules being sold as IAP is honestly probably the way to go for a modular synth (can’t ask for everything without paying 🤷🏻‍♂️), I find it a bit annoying that some of us paid to essentially fund the development of what has now become a free app. I understand that every module that was on the released - paid for - version is still available to me, but I do feel like at least, as a funding member, we should have gotten some treats when it comes to the IAPs.. perhaps a “redeemable code” or two (or even three really) to make up for the investment would have gone a long way. Still going to give this a 5, but I honestly am quite annoyed by the whole IAP system not rewarding funding members. Cheers though, I have to dig in deeper into this app now — but I spent a lot of time on Audulus 3 and never used 4 even though I purchased it because it wasn’t available on iPhone when I purchased it (not really that much of an iPad music maker but more of an iPhone music maker kinda guy).
by En*****, 2026-08-28

I'm not sure if anyone understands it, but Taylor Holliday has single handedly created one of the most advanced GUI kits in the whole world capable of running a very very very complicated data-flow language that itself runs hundreds and thousands of nodes so many times a second, it actually outputs sound. What he has done is one of the greatest achievements in the whole of computing, whether anyone sees it or not. You read his codes like the RUI and you see just how he deserves to be there. A genius project, way a way more genius implementation.
by po*****, 2026-08-06
View all user reviews ›

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