# Air vs iDensity

The clearest difference is price: Air at $1.99 against iDensity's $9.99. Air also leads on chart position (#186 vs unranked) and iOS requirement (9.0 vs 15.6). iDensity's advantage is review sentiment (86% vs 55%) and update cadence (monthly vs every 12 months). On ads, in-app purchases, monetization model and device support there is nothing between them.

Air costs $1.99 and iDensity $9.99 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 4.5. Both are backed by a comparable volume of ratings — 10 and 48 respectively. Written reviews point the same way: 55% of Air's written reviews are positive against 86% of iDensity's.

Air ships an update every 12 months, iDensity monthly. The most recent releases landed on September 27, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Air | iDensity |
| --- | --- | --- |
| Price | **$1.99** | $9.99 |
| Rating | [4.5 (10 ratings)](https://appshunter.io/ios/app/air/id312163985/reviews) | **[4.9 (48 ratings)](https://appshunter.io/ios/app/idensity/id464660779/reviews)** |
| Number of ratings | 10 | **48** |
| Positive reviews | 55.3% of reviews | **85.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Monthly** |
| Monetization | Paid | Paid |
| Best chart rank | **#186** | — |
| Size | 33 MB | 16 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Opal Limited](https://appshunter.io/developer/292792589) | [apeSoft](https://appshunter.io/developer/464660782) |

## What reviewers say

### Air

[App page](https://appshunter.io/ios/app/air/id312163985)

**Currently charting:** #186 Top Paid · Music (US App Store)

This app creates a unique, ever-changing audio-visual experience using vocal and piano samples. Users can influence the composition through different modes and even spread the sound across multiple devices.

**Highlights:** Generative audio-visual composition, Vocal and piano sample assembly, Four 'Conduct' modes for user control, Three 'Listen' modes for arrangement choice, Multi-device sound spreading option

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Air free?

Air costs $1.99, with no in-app purchases.

### Is iDensity free?

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

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

iDensity is rated higher. Air averages 4.5 out of 5 from 10 ratings, while iDensity averages 4.9 from 48 ratings.

### Do Air or iDensity have ads?

Neither Air nor iDensity shows ads.

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

Air ships an update every 12 months, and iDensity monthly. Most recently, Air was updated on September 27, 2026 and iDensity 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.*