# 葡萄心 vs OpenK

The clearest difference is iOS requirement: OpenK at 9.0 against 葡萄心's 12.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

葡萄心 ships an update monthly, OpenK every 6 weeks. The most recent releases landed on October 10, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 葡萄心 | OpenK |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 weeks |
| Size | 72 MB | 112 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 17+ |
| Developer | [葡萄籽教育](https://appshunter.io/developer/1211564650) | [Beijing Ingcare Technology Co.,Ltd.](https://appshunter.io/developer/1266130654) |

## What reviewers say

### 葡萄心

[App page](https://appshunter.io/ios/app/id1211569841)

**Features:** macOS Compatibility

**In-app purchases:** none


### OpenK

[App page](https://appshunter.io/ios/app/openk/id1462608304)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 葡萄心 free?

葡萄心 is free to download, with no in-app purchases.

### Is OpenK free?

OpenK is free to download, with no in-app purchases.

### Do 葡萄心 or OpenK have ads?

Neither 葡萄心 nor OpenK shows ads.

### Which is updated more often, 葡萄心 or OpenK?

葡萄心 ships an update monthly, and OpenK every 6 weeks. Most recently, 葡萄心 was updated on October 10, 2026 and OpenK on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*