# HAI Link vs D

The clearest difference is update cadence: D at monthly against HAI Link's every 3 months. HAI Link's advantage is iOS requirement (9.0 vs 15.6). 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.

HAI Link ships an update every 3 months, D monthly. The most recent releases landed on September 20, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | HAI Link | D |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Size | 194 MB | 16 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Haitong International](https://appshunter.io/developer/538351269) | [ONLYOWNER TECHNOLOGY LIMITED](https://appshunter.io/developer/1808290458) |

## What reviewers say

### HAI Link

[App page](https://appshunter.io/ios/app/hai-link/id1557589717)

**Features:** macOS Compatibility

**In-app purchases:** none


### D

[App page](https://appshunter.io/ios/app/d-zone/id6752286557)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HAI Link free?

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

### Is D free?

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

### Do HAI Link or D have ads?

Neither HAI Link nor D shows ads.

### Which is updated more often, HAI Link or D?

HAI Link ships an update every 3 months, and D monthly. Most recently, HAI Link was updated on September 20, 2026 and D on September 22, 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.*