# 得理律助 vs 阿尔法系统

The clearest difference is in-app purchases: 阿尔法系统 at none against 得理律助's 1. 阿尔法系统 also leads on update cadence (every 8 days vs every 3 weeks). 得理律助's advantage is iOS requirement (13.0 vs 15.5). On price, ads and device support there is nothing between them.

Both are free to download. 得理律助 sells 1 in-app purchase, starting at $144.99 per year. 阿尔法系统 asks for nothing beyond the download.

得理律助 ships an update every 3 weeks, 阿尔法系统 every 8 days. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | 得理律助 | 阿尔法系统 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 8 days** |
| Size | 122 MB | 66 MB |
| Requires iOS | **13.0** | 15.5 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 9+ |
| Developer | [深圳得理科技有限公司](https://appshunter.io/developer/1512357116) | [深圳市硕赢互动信息技术有限公司](https://appshunter.io/developer/1676430309) |

## What reviewers say

### 得理律助

[App page](https://appshunter.io/ios/app/id1622777222)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 个人版连续包年 | $144.99 | per year |


### 阿尔法系统

[App page](https://appshunter.io/ios/app/id6446170604)

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

**In-app purchases:** none


## Frequently asked questions

### Is 得理律助 free?

得理律助 is free to download, with in-app purchases available.

### Is 阿尔法系统 free?

阿尔法系统 is free to download, with no in-app purchases.

### Do 得理律助 or 阿尔法系统 have ads?

Neither 得理律助 nor 阿尔法系统 shows ads.

### Which is updated more often, 得理律助 or 阿尔法系统?

得理律助 ships an update every 3 weeks, and 阿尔法系统 every 8 days. Most recently, 得理律助 was updated on November 3, 2026 and 阿尔法系统 on November 7, 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.*