# Zero One Protocol vs EMUspace

The clearest difference is ads: EMUspace at none against Zero One Protocol's shown. EMUspace also leads on update cadence (every 3 days vs every 9 days). Zero One Protocol's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.6). On price and in-app purchases there is nothing between them.

Both are free to download. Zero One Protocol sells 1 one-off in-app purchase and EMUspace sells 2 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Zero One Protocol ships an update every 9 days, EMUspace every 3 days. The most recent releases landed on October 5, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Zero One Protocol | EMUspace |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.4 (8 ratings)](https://appshunter.io/ios/app/emuspace-ps1-and-psp-emulator/id6800645048/reviews)** |
| Number of ratings | — | **8** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 9 days | **Every 3 days** |
| Monetization | — | Freemium |
| Size | 795 MB | 122 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Yes2Games](https://appshunter.io/developer/1842238221) | [Artem Lavrentiev](https://appshunter.io/developer/1859996061) |

## What reviewers say

### Zero One Protocol

[App page](https://appshunter.io/ios/app/zero-one-protocol-logic/id6754828013)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Game Unlock | $0.99 | one-time |


### EMUspace

[App page](https://appshunter.io/ios/app/emuspace-ps1-and-psp-emulator/id6800645048)

Experience classic PlayStation and PSP games on your iPhone. This app consolidates your game library, offering touch controls and flexible display options. Play for free or unlock advanced features with a Pro subscription.

**Highlights:** PS1 and PSP emulation, On-screen and external controller support, Game library with cover art, Save states and quick loading (Pro), Portrait and landscape play, Import compatible game files

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $3.99 | per 7 days |
| Yearly | $39.99 | per year |


## Frequently asked questions

### Is Zero One Protocol free?

Zero One Protocol is free to download, with in-app purchases available.

### Is EMUspace free?

EMUspace is free to download, with in-app purchases available.

### Do Zero One Protocol or EMUspace have ads?

Zero One Protocol shows ads; EMUspace does not.

### Which is updated more often, Zero One Protocol or EMUspace?

Zero One Protocol ships an update every 9 days, and EMUspace every 3 days. Most recently, Zero One Protocol was updated on October 5, 2026 and EMUspace on October 17, 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.*