# auGEN X vs Agonizer

The clearest difference is in-app purchases: auGEN X at none against Agonizer's 3. auGEN X also leads on iOS requirement (9.0 vs 11.0). Agonizer's advantage is rating (4.8 vs 4.6) and ratings volume (203 vs 12). On review sentiment, update cadence, ads and device support there is nothing between them.

auGEN X costs $9.99 and Agonizer $7.99 up front. Agonizer sells 3 one-off in-app purchases. auGEN X asks for nothing beyond the download.

Agonizer holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Agonizer has 203 ratings behind it against 12, so its average is the more settled of the two. Written reviews complicate that: 86% of auGEN X's written reviews are positive against 78% of Agonizer's, so the app with the better star average is not the one people write more warmly about.

auGEN X ships an update every 3 months, Agonizer every 5 months. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | auGEN X | Agonizer |
| --- | --- | --- |
| Price | $9.99 | **$7.99** |
| Rating | [4.6 (12 ratings)](https://appshunter.io/ios/app/augen-x/id1439844878/reviews) | **[4.8 (203 ratings)](https://appshunter.io/ios/app/agonizer/id1499426175/reviews)** |
| Number of ratings | 12 | **203** |
| Positive reviews | **85.7% of reviews** | 78.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | — | **#194** |
| Size | 57 MB | 362 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [auDSPr](https://appshunter.io/developer/1439844877) | [Kai Aras](https://appshunter.io/developer/370820899) |

## What reviewers say

### auGEN X

[App page](https://appshunter.io/ios/app/augen-x/id1439844878)

This app generates a wide variety of audio signals for both creative sound design and precise audio system testing. It features a versatile oscillator, noise generator, and impulse generator, functioning as a standalone app or an AUv3 Audio Unit Extension.

**Highlights:** Full-featured audio oscillator with 4 wave shapes, High-quality noise generator (white and pink), Impulse generator for reverb testing, AUv3 Audio Unit Extension and Stand-Alone App, MIDI In and BPM Sync support, Precise signal control with intuitive UI

**Features:** macOS Compatibility

**In-app purchases:** none


### Agonizer

[App page](https://appshunter.io/ios/app/agonizer/id1499426175)

**Currently charting:** #194 Top Paid · Music (US App Store)

This app is a monophonic synthesizer focused on bass sounds, developed with a synth bass expert. It features dual wavetable oscillators, a mangle section, and built-in stereo effects. It supports MPE controllers and various audio/MIDI connectivity options for standalone or app-to-app use.

**Highlights:** Monophonic synth engine for bass, Dual wavetable oscillators, Built-in stereo effects, MPE controller support, Standalone and AUv3 operation, 140+ factory presets

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Neon Nightmare Pack | $1.99 | one-time |
| Chrome Oasis Pack | $1.99 | one-time |
| Circuit Bender Pack | $1.99 | one-time |

**What reviewers like**

- 🎵 Excellent sound quality and unique bass tones
- 🎨 Intuitive and well-designed user interface
- ⚙️ Powerful modulation and sound design capabilities
- 🎛️ Wobulator feature for creative bass manipulation
- 📦 Great presets included with the app

**What reviewers complain about**

- 🐛 Keyboard legato/mono-synth behavior inconsistent
- 🐛 Frequent crashes in host applications (AUM, Cubasis, Audiobus)
- 🐛 No sound output in GarageBand and some AU hosts
- 🐛 App freezes on splash screen with iOS 18.3
- 🐛 UI responsiveness issues and knob lag

**Reported bugs**

- Keyboard does not properly handle legato/mono-synth note priority
- Crashes in Audiobus, AUM, and Cubasis host applications
- No sound output when used as AUv3 plugin in hosts
- No sound in GarageBand integration
- App freezes on splash screen with iOS 18.3

**Requested features**

- Polyphony mode or toggle between mono and poly
- Envelope drawing capability instead of preset selection
- Menu-based waveform selection instead of cycling
- Arpeggiator function
- Preset browser search and favorites filter


## Frequently asked questions

### Is auGEN X free?

auGEN X costs $9.99, with no in-app purchases.

### Is Agonizer free?

Agonizer costs $7.99, and also offers in-app purchases.

### Which has better reviews, auGEN X or Agonizer?

Agonizer is rated higher. auGEN X averages 4.6 out of 5 from 12 ratings, while Agonizer averages 4.8 from 203 ratings.

### Do auGEN X or Agonizer have ads?

Neither auGEN X nor Agonizer shows ads.

### Which is updated more often, auGEN X or Agonizer?

auGEN X ships an update every 3 months, and Agonizer every 5 months. Most recently, auGEN X was updated on October 24, 2026 and Agonizer on October 29, 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.*