# Audulus 4 vs TriplexClassic

The clearest difference is rating: TriplexClassic at 5.0 against Audulus 4's 4.3. TriplexClassic also leads on in-app purchases (none vs 27) and review sentiment (100% vs 69%). Audulus 4's advantage is ratings volume (74 vs 15). On price, ads and device support there is nothing between them.

Both are free to download. Audulus 4 sells 27 in-app purchases, starting at $4.99 per month. TriplexClassic asks for nothing beyond the download.

TriplexClassic holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 74 and 15 respectively. Written reviews point the same way: 69% of Audulus 4's written reviews are positive against 100% of TriplexClassic's.

Audulus 4 ships an update monthly, TriplexClassic every 5 days. The most recent releases landed on September 12, 2026 and August 19, 2026 respectively.

## The numbers

| Metric | Audulus 4 | TriplexClassic |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (74 ratings)](https://appshunter.io/ios/app/audulus-4/id1592022030/reviews) | **[5.0 (15 ratings)](https://appshunter.io/ios/app/triplexclassic/id6444733628/reviews)** |
| Number of ratings | **74** | 15 |
| Positive reviews | 69.2% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 5 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 103 MB | 2 MB |
| Requires iOS | 18.0 | **14** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Audulus LLC](https://appshunter.io/developer/452619536) | [Christopher Herb](https://appshunter.io/developer/1656508786) |

## What reviewers say

### Audulus 4

[App page](https://appshunter.io/ios/app/audulus-4/id1592022030)

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.

**Highlights:** 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

**Features:** Vision Pro support

**In-app purchases (27)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Audulus Pro (1 Month) | $4.99 | per month |
| Audulus Pro (1 Year) | $29.99 | per year |
| 1-shot Sample | $1.99 | one-time |
| P-Train | $2.99 | one-time |
| CLK RS-1 | $3.99 | one-time |
| CG-1 Chord Generator | $3.99 | one-time |
| CLK Clock Generator | $4.99 | one-time |
| MetaEnvelope | $4.99 | one-time |
| Modal Percussion | $4.99 | one-time |
| CLK: TimeWarp | $4.99 | one-time |
| CPR-1 | $4.99 | one-time |
| LMT-1 | $4.99 | one-time |
| MS-FUNC | $5.99 | one-time |
| CLK SS-516 | $7.99 | one-time |
| J-23 Reverb | $7.99 | one-time |
| J-23 Effects | $7.99 | one-time |
| CLK GS-1 | $7.99 | one-time |
| Chaos LFO Bundle | $7.99 | one-time |
| ARP-1 | $7.99 | one-time |
| CPR-3 | $7.99 | one-time |
| SynD-K1 | $7.99 | one-time |
| TRIKOR VCO | $9.99 | one-time |
| CLK Tools Bundle | $9.99 | one-time |
| Essential Synth Bundle | $9.99 | one-time |
| VCF Bundle 1 | $9.99 | one-time |
| J-23 Space Console | $14.99 | one-time |
| Patch Editing | $29.99 | one-time |

**What reviewers like**

- ✨ Powerful modular environment
- 💡 Deep DSP programming capabilities
- 🎨 Intuitive and beautiful UI
- 🚀 Seamless workflow across devices
- 📚 Great for learning synthesis

**What reviewers complain about**

- 💸 Expensive in-app purchases/subscriptions
- ⚠️ Steep learning curve for beginners
- 📱 UI issues on mobile (scrolling, view obstruction)
- 📉 High CPU usage
- ❓ Lack of comprehensive documentation

**Reported bugs**

- 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

**Requested features**

- Add 'Load' button for presets
- Improve DAW integration (Undo, duplicate)
- Resizable plugin window
- More modules (FFT/IFFT, granular buffering)
- Add CC in module


### TriplexClassic

[App page](https://appshunter.io/ios/app/triplexclassic/id6444733628)

This application offers a classic FM synthesizer experience with a modern interface. It allows for a wide range of sounds, from clean to distorted, with six specialized macro controls for easy sound shaping. An LFO and drive control further enhance its sound design capabilities.

**Highlights:** 3 operator FM synth engine, Up to 8 voices, 6 specialized macro controls, LFO with shape control, Drive control, Modern, accessible interface

**In-app purchases:** none


## Frequently asked questions

### Is Audulus 4 free?

Audulus 4 is free to download, with in-app purchases available.

### Is TriplexClassic free?

TriplexClassic is free to download, with no in-app purchases.

### Which has better reviews, Audulus 4 or TriplexClassic?

TriplexClassic is rated higher. Audulus 4 averages 4.3 out of 5 from 74 ratings, while TriplexClassic averages 5.0 from 15 ratings.

### Do Audulus 4 or TriplexClassic have ads?

Neither Audulus 4 nor TriplexClassic shows ads.

### Which is updated more often, Audulus 4 or TriplexClassic?

Audulus 4 ships an update monthly, and TriplexClassic every 5 days. Most recently, Audulus 4 was updated on September 12, 2026 and TriplexClassic on August 19, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*