# 管道计算器Pro vs 钣金计算器

The clearest difference is update cadence: 管道计算器Pro at every 9 days against 钣金计算器's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 管道计算器Pro sells 3 one-off in-app purchases and 钣金计算器 sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

管道计算器Pro ships an update every 9 days, 钣金计算器 every 3 weeks. The most recent releases landed on October 14, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | 管道计算器Pro | 钣金计算器 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Size | 53 MB | 65 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ChenShu Zhuang](https://appshunter.io/developer/1477949813) | [靖翔 尚](https://appshunter.io/developer/1889801343) |

## What reviewers say

### 管道计算器Pro

[App page](https://appshunter.io/ios/app/pro/id6758931508)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度会员 | $3.99 | one-time |
| 年度会员 | $14.99 | one-time |
| 永久会员 | $29.99 | one-time |


### 钣金计算器

[App page](https://appshunter.io/ios/app/id6761712746)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度会员 | $2.99 | one-time |
| 年度会员 | $5.99 | one-time |
| 永久会员 | $11.99 | one-time |


## Frequently asked questions

### Is 管道计算器Pro free?

管道计算器Pro is free to download, with in-app purchases available.

### Is 钣金计算器 free?

钣金计算器 is free to download, with in-app purchases available.

### Do 管道计算器Pro or 钣金计算器 have ads?

Neither 管道计算器Pro nor 钣金计算器 shows ads.

### Which is updated more often, 管道计算器Pro or 钣金计算器?

管道计算器Pro ships an update every 9 days, and 钣金计算器 every 3 weeks. Most recently, 管道计算器Pro was updated on October 14, 2026 and 钣金计算器 on October 16, 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.*