# 优博讯K31固件升级 vs 打印机

The clearest difference is price: 优博讯K31固件升级 at Free against 打印机's $0.99. 优博讯K31固件升级 also leads on in-app purchases (none vs 5) and ads (none vs shown). 打印机's advantage is update cadence (every 10 days vs every 4 months). On device support and iOS requirement there is nothing between them.

优博讯K31固件升级 is free to download; 打印机 costs $0.99 up front. 打印机 sells 5 in-app purchases, starting at $4.99 per 7 days. 优博讯K31固件升级 asks for nothing beyond the download.

优博讯K31固件升级 ships an update every 4 months, 打印机 every 10 days. The most recent releases landed on September 30, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | 优博讯K31固件升级 | 打印机 |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | — | 80.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 10 days** |
| Monetization | — | Free with in-app purchases |
| Size | 0 MB | 25 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [UROVO TECHNOLOGY CO., LTD.](https://appshunter.io/developer/1674303082) | [蔓 张](https://appshunter.io/developer/1827147129) |

## What reviewers say

### 优博讯K31固件升级

[App page](https://appshunter.io/ios/app/k31/id6745995670)

**In-app purchases:** none


### 打印机

[App page](https://appshunter.io/ios/app/wifi/id6751155188)

This app enables wireless printing from your mobile device to various printer brands without complex setup. It supports numerous file formats and offers convenient file import options. Additionally, it includes document conversion tools and the ability to print web pages and photos.

**Highlights:** Wireless mobile printing, Supports multiple printer brands, Prints various file formats (PDF, DOC, JPG, etc.), Import files from cloud services, Document conversion tools, Web page and photo printing

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 周会员 | $4.99 | per 7 days |
| 月会员 | $6.99 | per month |
| 季度会员 | $14.99 | per 3 months |
| 年会员 | $29.99 | per year |
| 永久会员 | $39.99 | one-time |


## Frequently asked questions

### Is 优博讯K31固件升级 free?

优博讯K31固件升级 is free to download, with no in-app purchases.

### Is 打印机 free?

打印机 costs $0.99, and also offers in-app purchases.

### Do 优博讯K31固件升级 or 打印机 have ads?

打印机 shows ads; 优博讯K31固件升级 does not.

### Which is updated more often, 优博讯K31固件升级 or 打印机?

优博讯K31固件升级 ships an update every 4 months, and 打印机 every 10 days. Most recently, 优博讯K31固件升级 was updated on September 30, 2026 and 打印机 on October 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.*