# Seibii vs 利益設計室

The clearest difference is in-app purchases: Seibii at none against 利益設計室's 4. Seibii also leads on ads (none vs shown) and iOS requirement (15.0 vs 17.0). On price, update cadence and device support there is nothing between them.

Both are free to download. 利益設計室 sells 4 in-app purchases, starting at $2.99 per month. Seibii asks for nothing beyond the download.

Seibii ships an update fortnightly, 利益設計室 weekly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Seibii | 利益設計室 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Weekly** |
| Size | 64 MB | 5 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 12+ | 4+ |
| Developer | [Seibii, Inc.](https://appshunter.io/developer/1499428969) | [HIROTO MUGIKURA](https://appshunter.io/developer/1895596406) |

## What reviewers say

### Seibii

[App page](https://appshunter.io/ios/app/seibii/id1499435860)

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

**In-app purchases:** none


### 利益設計室

[App page](https://appshunter.io/ios/app/id6764008569)

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 利益設計室 Plus 月額 | $2.99 | per month |
| 利益設計室 Pro 月額 | $5.99 | per month |
| 利益設計室 Plus 年額 | $29.99 | per year |
| 利益設計室 Pro 年額 | $59.99 | per year |


## Frequently asked questions

### Is Seibii free?

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

### Is 利益設計室 free?

利益設計室 is free to download, with in-app purchases available.

### Do Seibii or 利益設計室 have ads?

利益設計室 shows ads; Seibii does not.

### Which is updated more often, Seibii or 利益設計室?

Seibii ships an update fortnightly, and 利益設計室 weekly. Most recently, Seibii was updated on November 3, 2026 and 利益設計室 on October 31, 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.*