# BounceBud Physics Based MIDI vs Stellarvox

The clearest difference is price: BounceBud Physics Based MIDI at $3.99 against Stellarvox's $11.99. BounceBud Physics Based MIDI also leads on update cadence (every 5 weeks vs every 5 months) and iOS requirement (13.0 vs 15.0). On rating, review sentiment, ratings volume and ads there is nothing between them.

BounceBud Physics Based MIDI costs $3.99 and Stellarvox $11.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for BounceBud Physics Based MIDI against 5.0 for Stellarvox. Both are backed by a comparable volume of ratings — 11 and 11 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

BounceBud Physics Based MIDI ships an update every 5 weeks, Stellarvox every 5 months. The most recent releases landed on September 21, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | BounceBud Physics Based MIDI | Stellarvox |
| --- | --- | --- |
| Price | **$3.99** | $11.99 |
| Rating | [5.0 (11 ratings)](https://appshunter.io/ios/app/bouncebud-physics-based-midi/id6464171933/reviews) | [5.0 (11 ratings)](https://appshunter.io/ios/app/stellarvox/id6472060413/reviews) |
| Number of ratings | 11 | 11 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 5 months |
| Monetization | Paid | Paid |
| Size | 6 MB | 4 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cem Olcay](https://appshunter.io/developer/523633853) | [Igor Vasiliev](https://appshunter.io/developer/424401626) |

## What reviewers say

### BounceBud Physics Based MIDI

[App page](https://appshunter.io/ios/app/bouncebud-physics-based-midi/id6464171933)

This app generates MIDI notes through a unique physics-based system. Balls collide with customizable keyboards, triggering MIDI events. It offers extensive control over note scales, velocity, and MIDI channels for diverse musical creations.

**Highlights:** Physics-based generative MIDI sequencing, Customizable keyboards with MIDI note triggers, Adjustable ball count, speed, and size, Configurable key/scale, velocity, and octave ranges, Individual MIDI output per keyboard, MIDI input for 'shoot walls' interaction, Toggleable ball collision behavior

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

**In-app purchases:** none


### Stellarvox

[App page](https://appshunter.io/ios/app/stellarvox/id6472060413)

Design immersive ambient soundscapes with a hybrid reverb and artificial space designer. Create lush textures, deep spaces, and whispering backgrounds for electronic, experimental, and sound design projects. Offers intuitive controls and inspiring presets for quick, high-quality results.

**Highlights:** Hybrid reverb with artificial space designer, Algorithmic reflections tail processing, Dynamic timbre changes over time, Geometry and dimension control, Factory presets and random feature, MIDI learn support, Standalone and AUv3 module

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BounceBud Physics Based MIDI free?

BounceBud Physics Based MIDI costs $3.99, with no in-app purchases.

### Is Stellarvox free?

Stellarvox costs $11.99, with no in-app purchases.

### Which has better reviews, BounceBud Physics Based MIDI or Stellarvox?

BounceBud Physics Based MIDI and Stellarvox are both rated 5.0 out of 5 on the App Store, from 11 and 11 ratings respectively.

### Do BounceBud Physics Based MIDI or Stellarvox have ads?

Neither BounceBud Physics Based MIDI nor Stellarvox shows ads.

### Which is updated more often, BounceBud Physics Based MIDI or Stellarvox?

BounceBud Physics Based MIDI ships an update every 5 weeks, and Stellarvox every 5 months. Most recently, BounceBud Physics Based MIDI was updated on September 21, 2026 and Stellarvox on September 7, 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.*