# 数字营销系统 vs E

The clearest difference is update cadence: 数字营销系统 at every 2 months against E's every 4 months. 数字营销系统 also leads on iOS requirement (9.0 vs 12.0). 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.

数字营销系统 ships an update every 2 months, E every 4 months. The most recent releases landed on December 14, 2025 and September 13, 2026 respectively.

## The numbers

| Metric | 数字营销系统 | E |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Size | 18 MB | 76 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Hangzhou Yuntian Software Co., Ltd.](https://appshunter.io/developer/1051304783) | [杭州起策软件有限公司](https://appshunter.io/developer/1764893002) |

## What reviewers say

### 数字营销系统

[App page](https://appshunter.io/ios/app/id1633195063)

**In-app purchases:** none


### E

[App page](https://appshunter.io/ios/app/e/id6739605735)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 数字营销系统 free?

数字营销系统 is free to download, with no in-app purchases.

### Is E free?

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

### Do 数字营销系统 or E have ads?

Neither 数字营销系统 nor E shows ads.

### Which is updated more often, 数字营销系统 or E?

数字营销系统 ships an update every 2 months, and E every 4 months. Most recently, 数字营销系统 was updated on December 14, 2025 and E on September 13, 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.*