# PhonoPaper vs ShadowPlayKA

The clearest difference is rating: ShadowPlayKA at 5.0 against PhonoPaper's 4.6. PhonoPaper's advantage is update cadence (every 4 months vs every 25 months) and ratings volume (45 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

ShadowPlayKA holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: PhonoPaper has 45 ratings behind it against 1, so its average is the more settled of the two.

PhonoPaper ships an update every 4 months, ShadowPlayKA every 25 months. The most recent releases landed on October 10, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | PhonoPaper | ShadowPlayKA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (45 ratings)](https://appshunter.io/ios/app/phonopaper/id865947553/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/shadowplayka/id1585959421/reviews)** |
| Number of ratings | **45** | 1 |
| Positive reviews | 82.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 25 months |
| Monetization | Free | Free |
| Size | 4 MB | 6 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alexander Zolotov](https://appshunter.io/developer/324462547) | [Daniel Wilcox](https://appshunter.io/developer/970528307) |

## What reviewers say

### PhonoPaper

[App page](https://appshunter.io/ios/app/phonopaper/id865947553)

This app decodes images containing encoded sound, allowing you to play back audio embedded within visual patterns. You can also record your own sounds and convert them into these unique visual codes. It's designed for creative audio messaging and artistic expression.

**Highlights:** Decode images with encoded sound, Create sound codes from recordings, Offline decoding capability, Analogue code for distortion resilience, Real-time, hand-controlled playback, Draw codes for unique sounds

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is PhonoPaper free?

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

### Is ShadowPlayKA free?

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

### Which has better reviews, PhonoPaper or ShadowPlayKA?

ShadowPlayKA is rated higher. PhonoPaper averages 4.6 out of 5 from 45 ratings, while ShadowPlayKA averages 5.0 from 1 ratings.

### Do PhonoPaper or ShadowPlayKA have ads?

Neither PhonoPaper nor ShadowPlayKA shows ads.

### Which is updated more often, PhonoPaper or ShadowPlayKA?

PhonoPaper ships an update every 4 months, and ShadowPlayKA every 25 months. Most recently, PhonoPaper was updated on October 10, 2026 and ShadowPlayKA on September 29, 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.*