# Zither Tuner vs BounceBud Physics Based MIDI

The clearest difference is review sentiment: BounceBud Physics Based MIDI at 100% against Zither Tuner's 50%. BounceBud Physics Based MIDI also leads on rating (5.0 vs 3.0) and update cadence (every 3 weeks vs every 25 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Zither Tuner costs $5.99 and BounceBud Physics Based MIDI $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

BounceBud Physics Based MIDI holds the better App Store score, 5.0 against 3.0. That said, the two scores are not equally well evidenced: BounceBud Physics Based MIDI has 11 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 50% of Zither Tuner's written reviews are positive against 100% of BounceBud Physics Based MIDI's.

Zither Tuner ships an update every 25 months, BounceBud Physics Based MIDI every 3 weeks. The most recent releases landed on October 7, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Zither Tuner | BounceBud Physics Based MIDI |
| --- | --- | --- |
| Price | $5.99 | $5.99 |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/zither-tuner/id1375409215/reviews) | **[5.0 (11 ratings)](https://appshunter.io/ios/app/bouncebud-physics-based-midi/id6464171933/reviews)** |
| Number of ratings | 1 | **11** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 25 months | **Every 3 weeks** |
| Monetization | Paid | Paid |
| Size | 19 MB | 6 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [怀卫 张](https://appshunter.io/developer/1252544375) | [Cem Olcay](https://appshunter.io/developer/523633853) |

## What reviewers say

### Zither Tuner

[App page](https://appshunter.io/ios/app/zither-tuner/id1375409215)

Easily tune your zither with this mobile application. It automatically measures string pitch and provides precise visual feedback. You can also use it to play standard tuning notes for auditory tuning.

**Highlights:** Automatic pitch measurement, Precise pitch indication, Standard sound playback, Auditory tuning support, A4 standard note adjustment

**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 Zither Tuner free?

Zither Tuner costs $5.99, with no in-app purchases.

### Is BounceBud Physics Based MIDI free?

BounceBud Physics Based MIDI costs $5.99, with no in-app purchases.

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

BounceBud Physics Based MIDI is rated higher. Zither Tuner averages 3.0 out of 5 from 1 ratings, while BounceBud Physics Based MIDI averages 5.0 from 11 ratings.

### Do Zither Tuner or BounceBud Physics Based MIDI have ads?

Neither Zither Tuner nor BounceBud Physics Based MIDI shows ads.

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

Zither Tuner ships an update every 25 months, and BounceBud Physics Based MIDI every 3 weeks. Most recently, Zither Tuner was updated on October 7, 2026 and BounceBud Physics Based MIDI on October 15, 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.*