# iDensity vs Impaktor

The clearest difference is rating: iDensity at 4.9 against Impaktor's 3.7. iDensity also leads on update cadence (monthly vs every 12 months). Impaktor's advantage is price ($6.99 vs $9.99). On review sentiment, ratings volume, ads and in-app purchases there is nothing between them.

iDensity costs $9.99 and Impaktor $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

iDensity holds the better App Store score, 4.9 against 3.7. Both are backed by a comparable volume of ratings — 48 and 53 respectively. Written reviews point the same way: 86% of iDensity's written reviews are positive against 79% of Impaktor's.

iDensity ships an update monthly, Impaktor every 12 months. Both last shipped on September 21, 2026.

## The numbers

| Metric | iDensity | Impaktor |
| --- | --- | --- |
| Price | $9.99 | **$6.99** |
| Rating | **[4.9 (48 ratings)](https://appshunter.io/ios/app/idensity/id464660779/reviews)** | [3.7 (53 ratings)](https://appshunter.io/ios/app/impaktor/id557824278/reviews) |
| Number of ratings | 48 | **53** |
| Positive reviews | **85.7% of reviews** | 78.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 12 months |
| Monetization | Paid | Paid |
| Size | 16 MB | 17 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [apeSoft](https://appshunter.io/developer/464660782) | [BeepStreet](https://appshunter.io/developer/321412321) |

## What reviewers say

### iDensity

[App page](https://appshunter.io/ios/app/idensity/id464660779)

This app offers real-time asynchronous sound file granulation, enabling users to create a wide array of audio effects. It provides tools for time/pitch manipulation, texture generation, buffer recording, and complex sound exploration. Designed for musicians and sound designers, it offers flexibility for live performance, studio composition, and on-the-go sound design.

**Highlights:** Real-time sound granulation, Time/pitch shifting and jittering, Texture generation, Buffer recording and manipulation, Scrub pad exploration, Dynamic envelope shaping, Audio Unit (AUv3) support

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

**In-app purchases:** none

**What reviewers like**

- ✨ Incredible soundscapes
- 🎛️ Powerful granular synthesis
- 🎚️ Multi-channel capability (6 channels)
- 🎧 Excellent for ambient music
- 💡 Innovative sound design tool

**What reviewers complain about**

- 🤔 Steep learning curve
- 🎨 Unappealing UI/color schemes (for some)
- 🎛️ Counterintuitive controls (for some)
- 💰 In-app purchases can be costly
- ❓ Lack of clear documentation/tutorials (historically)

**Reported bugs**

- Occasional crashes (historically)
- AudioBus issues (historically)
- Preset management not working correctly (historically)
- Transport sync not working (historically)
- GUI bugs (e.g., maximizing a strand)

**Requested features**

- Independent MIDI note control over pitch for each stream
- Alphabetical preset sorting
- Load existing project name into 'Save As'
- Multi-port output for AUM/Ape Matrix
- Built-in wave-editor for sample cutting


### 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


## Frequently asked questions

### Is iDensity free?

iDensity costs $9.99, with no in-app purchases.

### Is Impaktor free?

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

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

iDensity is rated higher. iDensity averages 4.9 out of 5 from 48 ratings, while Impaktor averages 3.7 from 53 ratings.

### Do iDensity or Impaktor have ads?

Neither iDensity nor Impaktor shows ads.

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

iDensity ships an update monthly, and Impaktor every 12 months. Most recently, iDensity was updated on September 21, 2026 and Impaktor on September 21, 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.*