# Shadow Computer vs Hoi Poi email

The clearest difference is rating: Shadow Computer at 5.0 against Hoi Poi email's 3.9. Shadow Computer also leads on in-app purchases (none vs 1) and ads (none vs shown). Hoi Poi email's advantage is ratings volume (31 vs 1). On price, update cadence and device support there is nothing between them.

Both are free to download. Hoi Poi email sells 1 one-off in-app purchase. Shadow Computer asks for nothing beyond the download.

Shadow Computer holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Hoi Poi email has 31 ratings behind it against 1, so its average is the more settled of the two.

Shadow Computer ships an update every 4 months, Hoi Poi email every 3 months. Both last shipped on November 2, 2026.

## The numbers

| Metric | Shadow Computer | Hoi Poi email |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/shadow-computer/id1333097594/reviews)** | [3.9 (31 ratings)](https://appshunter.io/ios/app/hoi-poi-email/id1337855181/reviews) |
| Number of ratings | 1 | **31** |
| Positive reviews | — | 22.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 17 MB | 17 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CMH S.r.l.](https://appshunter.io/developer/1252564624) | [Hayato Shimizu](https://appshunter.io/developer/1207195348) |

## What reviewers say

### Shadow Computer

[App page](https://appshunter.io/ios/app/shadow-computer/id1333097594)

Browse a product catalog, receive personalized promotions, and track order status. Stay updated on company news and events with this mobile application.

**Highlights:** Browse product catalog, Receive personalized promotions, Monitor order status, Get news and event updates

**Features:** macOS Compatibility

**In-app purchases:** none


### Hoi Poi email

[App page](https://appshunter.io/ios/app/hoi-poi-email/id1337855181)

Easily create temporary email addresses for registrations and anonymous communication. Receive, send, and reply to emails without any registration. Addresses automatically change after 10 minutes, preventing spam and protecting your privacy.

**Highlights:** Automatic email address generation, Receive, send, and reply to emails, Anonymous email communication, Temporary email addresses, Automatic address change, Manual address acquisition

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.99 | one-time |


## Frequently asked questions

### Is Shadow Computer free?

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

### Is Hoi Poi email free?

Hoi Poi email is free to download, with in-app purchases available.

### Which has better reviews, Shadow Computer or Hoi Poi email?

Shadow Computer is rated higher. Shadow Computer averages 5.0 out of 5 from 1 ratings, while Hoi Poi email averages 3.9 from 31 ratings.

### Do Shadow Computer or Hoi Poi email have ads?

Hoi Poi email shows ads; Shadow Computer does not.

### Which is updated more often, Shadow Computer or Hoi Poi email?

Shadow Computer ships an update every 4 months, and Hoi Poi email every 3 months. Most recently, Shadow Computer was updated on November 2, 2026 and Hoi Poi email on November 2, 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.*