# 掌上移动应用 vs 原木计算器

The clearest difference is iOS requirement: 原木计算器 at 13.0 against 掌上移动应用's 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.

掌上移动应用 ships an update every 5 weeks, 原木计算器 every 2 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 掌上移动应用 | 原木计算器 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Size | 31 MB | 26 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hangzhou Hengwei Technology Co., Ltd.](https://appshunter.io/developer/1217093284) | [Suzhou Qianmu Information Technology Co., Ltd.](https://appshunter.io/developer/1533218067) |

## What reviewers say

### 掌上移动应用

[App page](https://appshunter.io/ios/app/id1217093285)

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

**In-app purchases:** none


### 原木计算器

[App page](https://appshunter.io/ios/app/id1552185367)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 掌上移动应用 free?

掌上移动应用 is free to download, with no in-app purchases.

### Is 原木计算器 free?

原木计算器 is free to download, with no in-app purchases.

### Do 掌上移动应用 or 原木计算器 have ads?

Neither 掌上移动应用 nor 原木计算器 shows ads.

### Which is updated more often, 掌上移动应用 or 原木计算器?

掌上移动应用 ships an update every 5 weeks, and 原木计算器 every 2 months. Most recently, 掌上移动应用 was updated on November 1, 2026 and 原木计算器 on November 3, 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.*