# Impaktor vs Agonizer

The clearest difference is rating: Agonizer at 4.8 against Impaktor's 3.7. Agonizer also leads on chart position (#189 vs unranked) and update cadence (every 5 months vs every 12 months). Impaktor's advantage is in-app purchases (none vs 3) and price ($6.99 vs $7.99). On review sentiment, ads and device support there is nothing between them.

Impaktor costs $6.99 and Agonizer $7.99 up front. Agonizer sells 3 one-off in-app purchases. Impaktor asks for nothing beyond the download.

Agonizer holds the better App Store score, 4.8 against 3.7. Both are backed by a comparable volume of ratings — 53 and 203 respectively. Written reviews split almost evenly too, at 79% and 78% positive.

Impaktor ships an update every 12 months, Agonizer every 5 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Impaktor | Agonizer |
| --- | --- | --- |
| Price | **$6.99** | $7.99 |
| Rating | [3.7 (53 ratings)](https://appshunter.io/ios/app/impaktor/id557824278/reviews) | **[4.8 (203 ratings)](https://appshunter.io/ios/app/agonizer/id1499426175/reviews)** |
| Number of ratings | 53 | **203** |
| Positive reviews | **78.9% of reviews** | 78.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 5 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | — | **#189** |
| Size | 17 MB | 362 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BeepStreet](https://appshunter.io/developer/321412321) | [Kai Aras](https://appshunter.io/developer/370820899) |

## What reviewers say

### Impaktor

[App page](https://appshunter.io/ios/app/impaktor/id557824278)

This app transforms any surface into a playable percussion instrument using your device's microphone. It offers a vast sonic palette with advanced sound modules and synthesis types, allowing for a wide range of acoustic, electronic, and industrial tones. Enjoy a realistic virtual drumming experience with low latency and a 6-track recorder.

**Highlights:** Surface-to-percussion instrument transformation, Advanced sound module simulation, Semi-modular synthesis architecture, Physical modeling, FM, and noise shaping synthesis, 6-track audio recorder with 3D panning, Ultra-low latency performance

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Extraordinary app
- 👍 Responsive and intuitive
- 👍 Sleek and appealing interface
- 🎨 Versatile and expressive sounds
- 🎨 Organic and natural feel

**What reviewers complain about**

- 🐛 Crashes with Inter-App Audio
- 🐛 Issues with WAV exports
- 🐛 Latency problems on certain devices
- 🐛 Compatibility issues with iOS updates
- 🐛 Unreliable saving functionality

**Reported bugs**

- Crashes with Inter-App Audio
- Issues with WAV exports
- Latency problems on certain devices
- Compatibility issues with iOS updates
- Unreliable saving functionality

**Requested features**

- MIDI support
- Audio import functionality
- Ableton Link sync
- More quantization options
- Multitrack export


### Agonizer

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

**Currently charting:** #189 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 Impaktor free?

Impaktor costs $6.99, with no in-app purchases.

### Is Agonizer free?

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

### Which has better reviews, Impaktor or Agonizer?

Agonizer is rated higher. Impaktor averages 3.7 out of 5 from 53 ratings, while Agonizer averages 4.8 from 203 ratings.

### Do Impaktor or Agonizer have ads?

Neither Impaktor nor Agonizer shows ads.

### Which is updated more often, Impaktor or Agonizer?

Impaktor ships an update every 12 months, and Agonizer every 5 months. Most recently, Impaktor was updated on November 1, 2026 and Agonizer on November 3, 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.*