# Phy vs Shells Puzzle Game

The clearest difference is in-app purchases: Phy at none against Shells Puzzle Game's 1. Phy also leads on ads (none vs shown) and iOS requirement (13.0 vs 18.0). Shells Puzzle Game's advantage is update cadence (every 4 months vs every 54 months). On price and device support there is nothing between them.

Both are free to download. Shells Puzzle Game sells 1 one-off in-app purchase. Phy asks for nothing beyond the download.

Phy ships an update every 54 months, Shells Puzzle Game every 4 months. The most recent releases landed on October 17, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Phy | Shells Puzzle Game |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 54 months | **Every 4 months** |
| Size | 2 MB | 13 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Krishna Raj Salim](https://appshunter.io/developer/1638689285) | [Claudio Souza Mattos](https://appshunter.io/developer/1774316937) |

## What reviewers say

### Phy

[App page](https://appshunter.io/ios/app/phy-stack/id949127355)

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

**In-app purchases:** none


### Shells Puzzle Game

[App page](https://appshunter.io/ios/app/shells-puzzle-game/id6475581633)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is Phy free?

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

### Is Shells Puzzle Game free?

Shells Puzzle Game is free to download, with in-app purchases available.

### Do Phy or Shells Puzzle Game have ads?

Shells Puzzle Game shows ads; Phy does not.

### Which is updated more often, Phy or Shells Puzzle Game?

Phy ships an update every 54 months, and Shells Puzzle Game every 4 months. Most recently, Phy was updated on October 17, 2026 and Shells Puzzle Game on October 10, 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.*