# 海钉约课 vs 反电信诈骗精灵

海钉约课 and 反电信诈骗精灵 are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | 海钉约课 | 反电信诈骗精灵 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | — |
| Size | 84 MB | 8 MB |
| Requires iOS | 11.0 | **10.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [萱 王](https://appshunter.io/developer/1502971306) | [Dalian Ruihai Information Technology Co.,Ltd.](https://appshunter.io/developer/1567394203) |

## What reviewers say

### 海钉约课

[App page](https://appshunter.io/ios/app/id1504867376)

**Features:** macOS Compatibility

**In-app purchases:** none


### 反电信诈骗精灵

[App page](https://appshunter.io/ios/app/id1567394201)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 海钉约课 free?

海钉约课 is free to download, with no in-app purchases.

### Is 反电信诈骗精灵 free?

反电信诈骗精灵 is free to download, with no in-app purchases.

### Do 海钉约课 or 反电信诈骗精灵 have ads?

Neither 海钉约课 nor 反电信诈骗精灵 shows ads.

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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.*