# 黑鲨魔戒 vs trackNkey

The clearest difference is update cadence: 黑鲨魔戒 at monthly against trackNkey's every 15 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.

黑鲨魔戒 ships an update monthly, trackNkey every 15 months. The most recent releases landed on September 21, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | 黑鲨魔戒 | trackNkey |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 15 months |
| Size | 131 MB | 125 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nanchang Blackshark Technologies Co., Ltd.](https://appshunter.io/developer/1358214067) | [trackNkey](https://appshunter.io/developer/1754343952) |

## What reviewers say

### 黑鲨魔戒

[App page](https://appshunter.io/ios/app/id6479516111)

**Features:** macOS Compatibility

**In-app purchases:** none


### trackNkey

[App page](https://appshunter.io/ios/app/tracknkey/id6504924316)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 黑鲨魔戒 free?

黑鲨魔戒 is free to download, with no in-app purchases.

### Is trackNkey free?

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

### Do 黑鲨魔戒 or trackNkey have ads?

Neither 黑鲨魔戒 nor trackNkey shows ads.

### Which is updated more often, 黑鲨魔戒 or trackNkey?

黑鲨魔戒 ships an update monthly, and trackNkey every 15 months. Most recently, 黑鲨魔戒 was updated on September 21, 2026 and trackNkey on September 14, 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.*