# PH System vs YISOO ERP Mobile Version

The clearest difference is in-app purchases: PH System at none against YISOO ERP Mobile Version's 20. YISOO ERP Mobile Version's advantage is update cadence (monthly vs every 15 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. YISOO ERP Mobile Version sells 20 one-off in-app purchases. PH System asks for nothing beyond the download.

PH System ships an update every 15 months, YISOO ERP Mobile Version monthly. The most recent releases landed on October 25, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | PH System | YISOO ERP Mobile Version |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 15 months | **Monthly** |
| Size | 25 MB | 77 MB |
| Requires iOS | 13 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [barnet Inc.](https://appshunter.io/developer/1203142034) | [Chengdu Wangpu Tianxia Technology Co., Ltd.](https://appshunter.io/developer/1512156740) |

## What reviewers say

### PH System

[App page](https://appshunter.io/ios/app/ph-system/id1438705034)

**Features:** macOS Compatibility

**In-app purchases:** none


### YISOO ERP Mobile Version

[App page](https://appshunter.io/ios/app/yisoo-erp-mobile-version/id1577010687)

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

**In-app purchases (20)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 加1用户1年 | $29.99 | one-time |
| 基础版1年 | $34.99 | one-time |
| 增加1用户 | $34.99 | one-time |
| 基础版3年 | $69.99 | one-time |
| 加1用户3年 | $69.99 | one-time |
| 基础版5年 | $89.99 | one-time |
| 基础版买断 | $99.99 | one-time |
| 加1用户5年 | $99.99 | one-time |
| 增加买断1用户 | $129.99 | one-time |
| 经典版5年 | $199.99 | one-time |
| 经典版买断 | $229.99 | one-time |
| 增加买断2用户 | $249.99 | one-time |
| 国际版1年 | $249.99 | one-time |
| 增加9用户 | $299.99 | one-time |
| 商城版5年 | $399.99 | one-time |
| 商城版买断 | $499.99 | one-time |
| 国际版3年 | $499.99 | one-time |
| 增加买断5用户 | $599.99 | one-time |
| 国际版5年 | $699.99 | one-time |
| 增加买断9用户 | $999.99 | one-time |


## Frequently asked questions

### Is PH System free?

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

### Is YISOO ERP Mobile Version free?

YISOO ERP Mobile Version is free to download, with in-app purchases available.

### Do PH System or YISOO ERP Mobile Version have ads?

Neither PH System nor YISOO ERP Mobile Version shows ads.

### Which is updated more often, PH System or YISOO ERP Mobile Version?

PH System ships an update every 15 months, and YISOO ERP Mobile Version monthly. Most recently, PH System was updated on October 25, 2026 and YISOO ERP Mobile Version on October 7, 2026.

---

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