# iDensity vs vibro

The clearest difference is price: vibro at Free against iDensity's $9.99. vibro also leads on iOS requirement (9.3 vs 15.6). iDensity's advantage is update cadence (monthly vs every 97 months) and review sentiment (86% vs 75%). On ads, in-app purchases and device support there is nothing between them.

vibro is free to download; iDensity costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

iDensity ships an update monthly, vibro every 97 months. The most recent releases landed on September 26, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | iDensity | vibro |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[4.9 (48 ratings)](https://appshunter.io/ios/app/idensity/id464660779/reviews)** | — |
| Number of ratings | **48** | — |
| Positive reviews | **85.7% of reviews** | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 97 months |
| Monetization | Paid | **Free** |
| Size | 16 MB | 12 MB |
| Requires iOS | 15.6 | **9.3** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [apeSoft](https://appshunter.io/developer/464660782) | [ALEXANDER SKALOV](https://appshunter.io/developer/1074092322) |

## 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


### vibro

[App page](https://appshunter.io/ios/app/vibro-sensitive-stroboscope/id1138465032)

Create a dynamic light show that pulses to the beat of your music, transforming any space into a club atmosphere. It's also a versatile tool for games, fitness tracking, and even creative spy communication.

**Highlights:** Music-synced light effects, Create club atmosphere, Dance battle tool, Improve dancing skills, Endurance competition game, Pulse impulse check, Spy communication device

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iDensity free?

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

### Is vibro free?

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

### Do iDensity or vibro have ads?

Neither iDensity nor vibro shows ads.

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

iDensity ships an update monthly, and vibro every 97 months. Most recently, iDensity was updated on September 26, 2026 and vibro on September 13, 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.*