# 多特e专注 vs 老岳讲感统

The clearest difference is in-app purchases: 多特e专注 at none against 老岳讲感统's 4. 多特e专注 also leads on update cadence (every 9 days vs every 5 weeks) and iOS requirement (10.0 vs 13.0). On price, ads and device support there is nothing between them.

Both are free to download. 老岳讲感统 sells 4 one-off in-app purchases. 多特e专注 asks for nothing beyond the download.

多特e专注 ships an update every 9 days, 老岳讲感统 every 5 weeks. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 多特e专注 | 老岳讲感统 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 5 weeks |
| Size | 115 MB | 64 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [福建中科多特健康科技有限公司](https://appshunter.io/developer/1589547274) | [Henan Laoyuejianggantong Education Technology Co., Ltd.](https://appshunter.io/developer/1571851229) |

## What reviewers say

### 多特e专注

[App page](https://appshunter.io/ios/app/e/id1592028758)

**Features:** macOS Compatibility

**In-app purchases:** none


### 老岳讲感统

[App page](https://appshunter.io/ios/app/id1614221410)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 老岳讲感统学币 | $0.99 | one-time |
| 老岳讲感统学币2 | $12.99 | one-time |
| 老岳讲感统学币3 | $23.99 | one-time |
| 老岳讲感统学币4 | $46.99 | one-time |


## Frequently asked questions

### Is 多特e专注 free?

多特e专注 is free to download, with no in-app purchases.

### Is 老岳讲感统 free?

老岳讲感统 is free to download, with in-app purchases available.

### Do 多特e专注 or 老岳讲感统 have ads?

Neither 多特e专注 nor 老岳讲感统 shows ads.

### Which is updated more often, 多特e专注 or 老岳讲感统?

多特e专注 ships an update every 9 days, and 老岳讲感统 every 5 weeks. Most recently, 多特e专注 was updated on October 27, 2026 and 老岳讲感统 on October 25, 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.*