Audulus 4 vs Chambers Courses
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Audulus 4
Create and shape sounds with a professional-grade modular synthesizer environment. Explore a vast library of modules for synthesis and sound design, with the option to expand your toolkit with premium instruments and effects. Available across Apple devices for seamless workflow.
- Modular synthesizer environment
- Sound design tools
- Real-time audio shaping
- Extensive module library
- Premium Pro Modules (in-app purchases)
- Cross-device iCloud sync
- AUv3 plugin support
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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: https://audulus.com/terms.html
Chambers Courses
Learn music production from a Billboard #1 producer with over 100 in-depth video courses. Access industry-quality drum kits, organized lesson plans, and a supportive community. New content is added regularly to keep your skills current.
- 100+ in-depth course videos
- Industry-quality drum kits
- 30+ organized lesson plans
- Producer support community
- Music theory
- Sound design
- Mixing & mastering
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Taught by a multi-gold Billboard #1 producer, Chambers' Online Class has over 100+ in depth course videos, covering all aspects of music production and engineering. Gain access to industry quality drum kits, 30+ organized lesson plans, and a growing producer support community. Professional Courses On: - Music Theory - Sound Design - Drum Programming - Mixing & Mastering - Structuring & Arrangement - Beat making across genres - Exclusive major artist song breakdowns Join thousands taking advantage of one of the best educational opportunities available to aspiring music creators. All courses are fresh and up to date, with new content added often. Chambers is a certified 2x Gold Billboard #1 producer with credits such as Future, 21 Savage, Lil Durk, Tyga, and many others. His work has accumulated hundreds of millions of streams, earned plaques, and made it to the top charts of the music industry. ▷ Already a Member? Sign-In to access your subscription. ▷ New? Subscribe in the app to get instant access. Chambers Courses offers auto-renewing subscriptions. You'll receive unlimited access to content on all your devices. Payment is charged to your Account at confirmation of purchase. Pricing varies by location and is confirmed prior to purchase. Subscription automatically renews each month unless canceled at least 24 hours before the end of the current billing period, or the trial period (when offered). Cancel anytime in Account Settings. For more information see our: -Terms of Service: https://chamberscourses.com/pages/terms -Privacy Policy: https://chamberscourses.com/pages/privacypolicy
Screenshots
Verdict
The clearest difference is monetization model: Audulus 4 at free with in-app purchases against Chambers Courses's subscription. Audulus 4 also leads on ratings volume (74 vs 14). Chambers Courses's advantage is review sentiment (100% vs 69%) and rating (4.6 vs 4.3). On price, update cadence, ads and in-app purchases 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
Both are free to download. Audulus 4 sells 27 in-app purchases, starting at $4.99 per month and Chambers Courses sells 1 in-app purchase, starting at $49.00 per month. Whichever you choose, the download price is not the number that matters.
Chambers Courses holds the better App Store score, 4.6 against 4.3. That said, the two scores are not equally well evidenced: Audulus 4 has 74 ratings behind it against 14, so its average is the more settled of the two. Written reviews point the same way: 69% of Audulus 4's written reviews are positive against 100% of Chambers Courses's.
Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 22, 2026 and October 12, 2026 respectively.
| Parameter | Audulus 4 | Chambers Courses |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (74 ratings) | 4.6 (14 ratings) — better |
| Positive reviews | 69.2% of reviews | 100.0% of reviews — better |
| Number of ratings | 74 — better | 14 |
| Update frequency | Monthly | Monthly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases — better | Subscription |
| Devices | iPhone, iPad, Mac — better | iPhone, iPad |
| Requires iOS | 18.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 103 MB | 68 MB |
| Age rating | 4+ | 4+ |
| Developer | Audulus LLC | CHAMBERS BEATS LLC |
Customer experience
Audulus 4
Chambers Courses
Bugs and requests
Audulus 4
Reported bugs
13 issues- iOS 18 compatibility issues (app not working)
- Save presets but no 'Load' button
- Undo command issues with DAWs
- CMD+Z causing data loss
- Opt+drag not duplicating modules
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- Plugin window not resizable
- Menu filtering not functioning properly on iPhone
- Select and Import buttons not working
- Blank screen on open
- App freezes on iPad Pro
- Black screen on launch after update
- No modules appearing after iOS 18 update
- Patches not appearing after iOS 18 update
Requested features
7 requests- Add 'Load' button for presets
- Improve DAW integration (Undo, duplicate)
- Resizable plugin window
- More modules (FFT/IFFT, granular buffering)
- Add CC in module
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- Sync to host as AUv3
- Make upgrade path clearer from Audulus 3
Chambers Courses
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Audulus 4
- Audulus Pro (1 Month)7 Days trial$4.991 Month
- Audulus Pro (1 Year)7 Days trial$29.991 Year
- 1-shot Sample$1.99
- P-Train$2.99
- CLK RS-1$3.99
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- CG-1 Chord Generator$3.99
- CLK Clock Generator$4.99
- MetaEnvelope$4.99
- Modal Percussion$4.99
- CLK: TimeWarp$4.99
- CPR-1$4.99
- LMT-1$4.99
- MS-FUNC$5.99
- CLK SS-516$7.99
- J-23 Reverb$7.99
- J-23 Effects$7.99
- CLK GS-1$7.99
- Chaos LFO Bundle$7.99
- ARP-1$7.99
- CPR-3$7.99
- SynD-K1$7.99
- TRIKOR VCO$9.99
- CLK Tools Bundle$9.99
- Essential Synth Bundle$9.99
- VCF Bundle 1$9.99
- J-23 Space Console$14.99
- Patch Editing$29.99
Chambers Courses
- Full Access Subscription$49.001 Month









