# 线下巡检 vs 数话

The clearest difference is in-app purchases: 线下巡检 at none against 数话's 4. 线下巡检 also leads on device support and iOS requirement (9.0 vs 12.0). On price there is nothing between them.

Both are free to download. 数话 sells 4 one-off in-app purchases. 线下巡检 asks for nothing beyond the download.

## The numbers

| Metric | 线下巡检 | 数话 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | — |
| Update frequency | Every 3 months | — |
| Size | 23 MB | 52 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 9+ |
| Developer | [凯峰 江](https://appshunter.io/developer/1533216794) | [温州专帮信息技术有限公司](https://appshunter.io/developer/1307323213) |

## What reviewers say

### 线下巡检

[App page](https://appshunter.io/ios/app/id1633467967)

**Features:** macOS Compatibility

**In-app purchases:** none


### 数话

[App page](https://appshunter.io/ios/app/id6499186679)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月会员 | $99.99 | one-time |
| 一个季度会员 | $249.99 | one-time |
| 半年会员 | $399.99 | one-time |
| 年会员 | $599.99 | one-time |


## Frequently asked questions

### Is 线下巡检 free?

线下巡检 is free to download, with no in-app purchases.

### Is 数话 free?

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

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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.*