# Lines vs BounceBud Physics Based MIDI

The clearest difference is price: BounceBud Physics Based MIDI at $3.99 against Lines's $19.99. BounceBud Physics Based MIDI also leads on update cadence (every 5 weeks vs every 13 months). On rating, review sentiment, ratings volume and ads there is nothing between them.

Lines costs $19.99 and BounceBud Physics Based MIDI $3.99 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 Lines against 5.0 for BounceBud Physics Based MIDI. Both are backed by a comparable volume of ratings — 11 and 11 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Lines ships an update every 13 months, BounceBud Physics Based MIDI every 5 weeks. The most recent releases landed on August 29, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Lines | BounceBud Physics Based MIDI |
| --- | --- | --- |
| Price | $19.99 | **$3.99** |
| Rating | [5.0 (11 ratings)](https://appshunter.io/ios/app/lines-feedback-multieffect/id6461267498/reviews) | [5.0 (11 ratings)](https://appshunter.io/ios/app/bouncebud-physics-based-midi/id6464171933/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 13 months | **Every 5 weeks** |
| Monetization | Paid | Paid |
| Size | 29 MB | 6 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AudioThing Ltd.](https://appshunter.io/developer/1659941236) | [Cem Olcay](https://appshunter.io/developer/523633853) |

## What reviewers say

### Lines

[App page](https://appshunter.io/ios/app/lines-feedback-multieffect/id6461267498)

This audio effect plugin transforms any signal into a wide spectrum of sounds, from lo-fi to distortion and feedback. It can also function as an experimental synthesizer, creating rhythms and soundscapes even without input.

**Highlights:** Creative signal mangling, Experimental synthesizer, Feedback-based sound design, Wide range of audio effects, Rhythm and soundscape generation

**Features:** Vision Pro support

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Lines free?

Lines costs $19.99, with no in-app purchases.

### Is BounceBud Physics Based MIDI free?

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

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

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

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

Neither Lines nor BounceBud Physics Based MIDI shows ads.

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

Lines ships an update every 13 months, and BounceBud Physics Based MIDI every 5 weeks. Most recently, Lines was updated on August 29, 2026 and BounceBud Physics Based MIDI 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.*