# 中安创谷CG+ vs 海钉约课

中安创谷CG+ and 海钉约课 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 2, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | 中安创谷CG+ | 海钉约课 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Size | 47 MB | 84 MB |
| Requires iOS | **10.0** | 11.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Shanghai Pudong Software Park Huizhi Software Development Co., Ltd.](https://appshunter.io/developer/882409578) | [萱 王](https://appshunter.io/developer/1502971306) |

## What reviewers say

### 中安创谷CG+

[App page](https://appshunter.io/ios/app/cg-plus/id1484054356)

**In-app purchases:** none


### 海钉约课

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 中安创谷CG+ free?

中安创谷CG+ is free to download, with no in-app purchases.

### Is 海钉约课 free?

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

### Do 中安创谷CG+ or 海钉约课 have ads?

Neither 中安创谷CG+ nor 海钉约课 shows ads.

### Which is updated more often, 中安创谷CG+ or 海钉约课?

中安创谷CG+ ships an update monthly, and 海钉约课 monthly. Most recently, 中安创谷CG+ was updated on October 2, 2026 and 海钉约课 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.*