# ShadowPlayKA vs PeerClock Metronome

The clearest difference is ads: ShadowPlayKA at none against PeerClock Metronome's shown. ShadowPlayKA also leads on iOS requirement (13.0 vs 17.0). PeerClock Metronome's advantage is update cadence (every 8 days vs every 25 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ShadowPlayKA ships an update every 25 months, PeerClock Metronome every 8 days. The most recent releases landed on June 1, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | ShadowPlayKA | PeerClock Metronome |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/shadowplayka/id1585959421/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 25 months | **Every 8 days** |
| Monetization | Free | — |
| Size | 6 MB | 9 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Wilcox](https://appshunter.io/developer/970528307) | [Hakaru Hirose](https://appshunter.io/developer/1866507020) |

## What reviewers say

### ShadowPlayKA

[App page](https://appshunter.io/ios/app/shadowplayka/id1585959421)

This app transforms light and shadow patterns into music as you cycle through outdoor spaces. It uses your smartphone's brightness sensor and a Bluetooth speaker to create a unique auditory experience based on your surroundings.

**Highlights:** Light and shadow as musical score, Bicycle-mounted smartphone sensor, Bluetooth speaker integration, Exploration of urban architecture, Unique soundscape generation

**In-app purchases:** none


### PeerClock Metronome

[App page](https://appshunter.io/ios/app/peerclock-metronome/id6762972307)

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

**In-app purchases:** none


## Frequently asked questions

### Is ShadowPlayKA free?

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

### Is PeerClock Metronome free?

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

### Do ShadowPlayKA or PeerClock Metronome have ads?

PeerClock Metronome shows ads; ShadowPlayKA does not.

### Which is updated more often, ShadowPlayKA or PeerClock Metronome?

ShadowPlayKA ships an update every 25 months, and PeerClock Metronome every 8 days. Most recently, ShadowPlayKA was updated on June 1, 2026 and PeerClock Metronome 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.*