# NBIot缴费助手 vs 拓客引擎

The clearest difference is update cadence: 拓客引擎 at every 2 months against NBIot缴费助手's every 12 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

NBIot缴费助手 ships an update every 12 months, 拓客引擎 every 2 months. Both last shipped on November 7, 2026.

## The numbers

| Metric | NBIot缴费助手 | 拓客引擎 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 2 months** |
| Size | 14 MB | 51 MB |
| Requires iOS | 12.1 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ShiJiaZhuang KeLin Electric CO.,LTD](https://appshunter.io/developer/1140034119) | [Hefei Baocms Network Technology Co.ltd.](https://appshunter.io/developer/1047461769) |

## What reviewers say

### NBIot缴费助手

[App page](https://appshunter.io/ios/app/nbiot/id1492037854)

**In-app purchases:** none


### 拓客引擎

[App page](https://appshunter.io/ios/app/id1635682759)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NBIot缴费助手 free?

NBIot缴费助手 is free to download, with no in-app purchases.

### Is 拓客引擎 free?

拓客引擎 is free to download, with no in-app purchases.

### Do NBIot缴费助手 or 拓客引擎 have ads?

Neither NBIot缴费助手 nor 拓客引擎 shows ads.

### Which is updated more often, NBIot缴费助手 or 拓客引擎?

NBIot缴费助手 ships an update every 12 months, and 拓客引擎 every 2 months. Most recently, NBIot缴费助手 was updated on November 7, 2026 and 拓客引擎 on November 7, 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.*