# What Day?? vs SpatialEMU

The clearest difference is price: SpatialEMU at Free against What Day??'s $9.99. SpatialEMU also leads on update cadence (every 11 days vs every 5 weeks) and device support (6 vs 3). What Day??'s advantage is iOS requirement (14.0 vs 18.0). On ads and in-app purchases there is nothing between them.

SpatialEMU is free to download; What Day?? costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

What Day?? ships an update every 5 weeks, SpatialEMU every 11 days. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | What Day?? | SpatialEMU |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/spatialemu/id6771768889/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 11 days** |
| Monetization | — | Paid |
| Size | 5 MB | 388 MB |
| Requires iOS | **14.0** | 18.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Apple TV, Apple Watch, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Pieter Yoshua Natanael](https://appshunter.io/developer/1657373397) | [晓东 傅](https://appshunter.io/developer/328047099) |

## What reviewers say

### What Day??

[App page](https://appshunter.io/ios/app/what-day/id6502677787)

**Features:** macOS Compatibility

**In-app purchases:** none


### SpatialEMU

[App page](https://appshunter.io/ios/app/spatialemu/id6771768889)

This app allows you to play your personal retro game collection on iPhone and iPad. It supports a wide range of classic systems and offers flexible control options, including virtual buttons and physical controllers. You can load games locally or connect to a self-hosted server for library management.

**Highlights:** Play retro games on iOS devices, Supports NES, SNES, PlayStation, PSP, and more, Load local game files or use a self-hosted server, Virtual and physical controller support, Customizable controller mapping, Local save states and progress syncing

**Features:** Game Controller support, Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is What Day?? free?

What Day?? costs $9.99, with no in-app purchases.

### Is SpatialEMU free?

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

### Do What Day?? or SpatialEMU have ads?

Neither What Day?? nor SpatialEMU shows ads.

### Which is updated more often, What Day?? or SpatialEMU?

What Day?? ships an update every 5 weeks, and SpatialEMU every 11 days. Most recently, What Day?? was updated on October 7, 2026 and SpatialEMU on October 8, 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.*