# Space Focus vs Phosphor Emulator

The clearest difference is update cadence: Phosphor Emulator at every 3 days against Space Focus's every 6 weeks. Phosphor Emulator also leads on device support (4 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

Space Focus ships an update every 6 weeks, Phosphor Emulator every 3 days. The most recent releases landed on October 1, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Space Focus | Phosphor Emulator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (31 ratings)](https://appshunter.io/ios/app/phosphor-emulator/id6759676286/reviews)** |
| Number of ratings | — | **31** |
| Positive reviews | — | 80.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 days** |
| Monetization | — | Free with in-app purchases |
| Size | 27 MB | 84 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 12+ | 4+ |
| Developer | [Davide Montuori](https://appshunter.io/developer/1791974659) | [SquatchCraft LLC](https://appshunter.io/developer/1440325922) |

## What reviewers say

### Space Focus

[App page](https://appshunter.io/ios/app/space-focus/id6752807716)

**In-app purchases:** none


### Phosphor Emulator

[App page](https://appshunter.io/ios/app/phosphor-emulator/id6759676286)

This app provides a premium emulation experience for Game Boy, Game Boy Color, and Game Boy Advance games on modern iOS devices. It features advanced controls, instant save states, and unique functionalities like rewinding gameplay and AI play.

**Highlights:** Rewind and fast-forward gameplay, Instant save and load states, Customizable touch controls, MFi controller support, Game Boy Camera and Printer integration, AI Play feature

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Space Focus free?

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

### Is Phosphor Emulator free?

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

### Do Space Focus or Phosphor Emulator have ads?

Neither Space Focus nor Phosphor Emulator shows ads.

### Which is updated more often, Space Focus or Phosphor Emulator?

Space Focus ships an update every 6 weeks, and Phosphor Emulator every 3 days. Most recently, Space Focus was updated on October 1, 2026 and Phosphor Emulator on October 16, 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.*