# 恒久牙医助手 vs 牙谷云2.0

恒久牙医助手 and 牙谷云2.0 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.

恒久牙医助手 ships an update monthly, 牙谷云2.0 every 3 weeks. The most recent releases landed on September 22, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | 恒久牙医助手 | 牙谷云2.0 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Size | 31 MB | 72 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [衡 张](https://appshunter.io/developer/1076236115) | [曲阜牙谷网络科技有限公司](https://appshunter.io/developer/1532335908) |

## What reviewers say

### 恒久牙医助手

[App page](https://appshunter.io/ios/app/id1175692080)

**Features:** macOS Compatibility

**In-app purchases:** none


### 牙谷云2.0

[App page](https://appshunter.io/ios/app/20/id6449245586)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 恒久牙医助手 free?

恒久牙医助手 is free to download, with no in-app purchases.

### Is 牙谷云2.0 free?

牙谷云2.0 is free to download, with no in-app purchases.

### Do 恒久牙医助手 or 牙谷云2.0 have ads?

Neither 恒久牙医助手 nor 牙谷云2.0 shows ads.

### Which is updated more often, 恒久牙医助手 or 牙谷云2.0?

恒久牙医助手 ships an update monthly, and 牙谷云2.0 every 3 weeks. Most recently, 恒久牙医助手 was updated on September 22, 2026 and 牙谷云2.0 on September 6, 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.*