# 七扇门 vs 二手房ERP

The clearest difference is update cadence: 七扇门 at every 2 weeks against 二手房ERP's every 5 weeks. 二手房ERP's advantage is iOS requirement (11.0 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.

七扇门 ships an update every 2 weeks, 二手房ERP every 5 weeks. The most recent releases landed on October 29, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | 七扇门 | 二手房ERP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 5 weeks |
| Size | 87 MB | 99 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Seven Door Co.,Ltd.](https://appshunter.io/developer/922854753) | [Zhuhai ShengYi Network Technology co., LTD](https://appshunter.io/developer/1041813951) |

## What reviewers say

### 七扇门

[App page](https://appshunter.io/ios/app/id927345250)

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

**In-app purchases:** none


### 二手房ERP

[App page](https://appshunter.io/ios/app/erp/id1057409380)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 七扇门 free?

七扇门 is free to download, with no in-app purchases.

### Is 二手房ERP free?

二手房ERP is free to download, with no in-app purchases.

### Do 七扇门 or 二手房ERP have ads?

Neither 七扇门 nor 二手房ERP shows ads.

### Which is updated more often, 七扇门 or 二手房ERP?

七扇门 ships an update every 2 weeks, and 二手房ERP every 5 weeks. Most recently, 七扇门 was updated on October 29, 2026 and 二手房ERP on October 26, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*