# OPN vs Minfair

The clearest difference is in-app purchases: OPN at none against Minfair's 4. OPN also leads on iOS requirement (12.0 vs 15.6). Minfair's advantage is update cadence (every 2 months vs every 14 months). On price, ads and device support there is nothing between them.

Both are free to download. Minfair sells 4 in-app purchases, starting at $29.00 per month. OPN asks for nothing beyond the download.

OPN ships an update every 14 months, Minfair every 2 months. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | OPN | Minfair |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 2 months** |
| Size | 5 MB | 8 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [OPTOELECTRONICS Co.,Ltd.](https://appshunter.io/developer/556827248) | [MoaiStudio](https://appshunter.io/developer/1793767509) |

## What reviewers say

### OPN

[App page](https://appshunter.io/ios/app/opn-ime/id1123259151)

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

**In-app purchases:** none


### Minfair

[App page](https://appshunter.io/ios/app/minfair-the-fairness-cloud/id6761772995)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ビジネス会員（月額）日本語サイト | $29.00 | per month |
| Business (Monthly) Global Site | $29.00 | per month |
| ビジネス会員（年額）日本語サイト | $299.00 | per year |
| Business (Annual) Global Site | $299.00 | per year |


## Frequently asked questions

### Is OPN free?

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

### Is Minfair free?

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

### Do OPN or Minfair have ads?

Neither OPN nor Minfair shows ads.

### Which is updated more often, OPN or Minfair?

OPN ships an update every 14 months, and Minfair every 2 months. Most recently, OPN was updated on November 2, 2026 and Minfair 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.*