# SII Printer Utility vs RPアプリ

The clearest difference is device support: SII Printer Utility at 3 against RPアプリ's 1. RPアプリ's advantage is iOS requirement (13.3 vs 15.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SII Printer Utility ships an update every 6 months, RPアプリ every 4 months. The most recent releases landed on September 22, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | SII Printer Utility | RPアプリ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 4 months** |
| Monetization | Free | — |
| Size | 51 MB | 4 MB |
| Requires iOS | 15.0 | **13.3** |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Seiko Instruments Inc.](https://appshunter.io/developer/430532225) | [INFUINIUS K.K.](https://appshunter.io/developer/1484605121) |

## What reviewers say

### SII Printer Utility

[App page](https://appshunter.io/ios/app/sii-printer-utility/id1558793350)

This application allows users to manage settings for Seiko Instruments Inc. printers. It enables writing and reading configurations, saving and loading settings to files, and printing current configurations. The utility also supports displaying printer information and resetting to default settings.

**Highlights:** Write settings to printer, Read settings from printer, Save/Load settings to file, Print function settings, Display printer information, Load default settings, Firmware update

**In-app purchases:** none


### RPアプリ

[App page](https://appshunter.io/ios/app/rp/id1562821440)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SII Printer Utility free?

SII Printer Utility is free to download, with no in-app purchases.

### Is RPアプリ free?

RPアプリ is free to download, with no in-app purchases.

### Do SII Printer Utility or RPアプリ have ads?

Neither SII Printer Utility nor RPアプリ shows ads.

### Which is updated more often, SII Printer Utility or RPアプリ?

SII Printer Utility ships an update every 6 months, and RPアプリ every 4 months. Most recently, SII Printer Utility was updated on September 22, 2026 and RPアプリ on September 10, 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.*