# SEIMON vs Runferry X

The clearest difference is in-app purchases: Runferry X at none against SEIMON's 2. Runferry X also leads on iOS requirement (13.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. SEIMON sells 2 in-app purchases, starting at $3.99 per month. Runferry X asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 23, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | SEIMON | Runferry X |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Size | 5 MB | 35 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Takahiro Endo](https://appshunter.io/developer/1878005918) | [Yevhen Yushchenko](https://appshunter.io/developer/1728266267) |

## What reviewers say

### SEIMON

[App page](https://appshunter.io/ios/app/seimon/id6762163853)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 上級鑑定士ライセンス（月額） | $3.99 | per month |
| 上級鑑定士ライセンス（年額） | $29.99 | per year |


### Runferry X

[App page](https://appshunter.io/ios/app/runferry-x/id6795269380)

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

**In-app purchases:** none


## Frequently asked questions

### Is SEIMON free?

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

### Is Runferry X free?

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

### Do SEIMON or Runferry X have ads?

Neither SEIMON nor Runferry X shows ads.

### Which is updated more often, SEIMON or Runferry X?

SEIMON ships an update every 3 weeks, and Runferry X every 3 weeks. Most recently, SEIMON was updated on September 23, 2026 and Runferry X on September 20, 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.*