# Ortholink优领 vs 艾维诊所

The clearest difference is update cadence: 艾维诊所 at every 3 weeks against Ortholink优领's every 2 months. 艾维诊所 also leads on iOS requirement (13.0 vs 15.0). 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.

Ortholink优领 ships an update every 2 months, 艾维诊所 every 3 weeks. The most recent releases landed on September 27, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Ortholink优领 | 艾维诊所 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 47 MB | 24 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [杭州一牙数字口腔有限公司](https://appshunter.io/developer/1258427021) | [上海云牙医疗信息科技有限公司杭州分公司](https://appshunter.io/developer/1136494282) |

## What reviewers say

### Ortholink优领

[App page](https://appshunter.io/ios/app/ortholink/id1473570948)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### 艾维诊所

[App page](https://appshunter.io/ios/app/id1551263017)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ortholink优领 free?

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

### Is 艾维诊所 free?

艾维诊所 is free to download, with no in-app purchases.

### Do Ortholink优领 or 艾维诊所 have ads?

Neither Ortholink优领 nor 艾维诊所 shows ads.

### Which is updated more often, Ortholink优领 or 艾维诊所?

Ortholink优领 ships an update every 2 months, and 艾维诊所 every 3 weeks. Most recently, Ortholink优领 was updated on September 27, 2026 and 艾维诊所 on November 3, 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.*