# PTM工程全要素计量 vs 萌盒

The clearest difference is in-app purchases: PTM工程全要素计量 at none against 萌盒's 1. PTM工程全要素计量 also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 29 months). On price and device support there is nothing between them.

Both are free to download. 萌盒 sells 1 one-off in-app purchase. PTM工程全要素计量 asks for nothing beyond the download.

PTM工程全要素计量 ships an update every 2 weeks, 萌盒 every 29 months. The most recent releases landed on September 17, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | PTM工程全要素计量 | 萌盒 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Every 29 months |
| Size | 84 MB | 17 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [太原市华森伟业科技发展有限公司](https://appshunter.io/developer/991758164) | [Taiyuan Duolaimi Information Technology Company Limited](https://appshunter.io/developer/1682550243) |

## What reviewers say

### PTM工程全要素计量

[App page](https://appshunter.io/ios/app/ptm/id1492843469)

**Features:** macOS Compatibility

**In-app purchases:** none


### 萌盒

[App page](https://appshunter.io/ios/app/id6447768675)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP | $3.99 | one-time |


## Frequently asked questions

### Is PTM工程全要素计量 free?

PTM工程全要素计量 is free to download, with no in-app purchases.

### Is 萌盒 free?

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

### Do PTM工程全要素计量 or 萌盒 have ads?

萌盒 shows ads; PTM工程全要素计量 does not.

### Which is updated more often, PTM工程全要素计量 or 萌盒?

PTM工程全要素计量 ships an update every 2 weeks, and 萌盒 every 29 months. Most recently, PTM工程全要素计量 was updated on September 17, 2026 and 萌盒 on September 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.*