# 发货宝 vs ROI大师

The clearest difference is in-app purchases: 发货宝 at none against ROI大师's 7. 发货宝 also leads on iOS requirement (9.3 vs 13.0). ROI大师's advantage is device support. On price there is nothing between them.

Both are free to download. ROI大师 sells 7 in-app purchases, starting at $0.99 per month. 发货宝 asks for nothing beyond the download.

## The numbers

| Metric | 发货宝 | ROI大师 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Every 2 weeks |
| Monetization | — | Freemium |
| Size | 8 MB | 63 MB |
| Requires iOS | **9.3** | 13.0 |
| Devices | — | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Toyou Tech. Co., Ltd.](https://appshunter.io/developer/903865258) | [丹宁 冯](https://appshunter.io/developer/1452086482) |

## What reviewers say

### 发货宝

[App page](https://appshunter.io/ios/app/id1437183964)

**In-app purchases:** none


### ROI大师

[App page](https://appshunter.io/ios/app/roi/id6743304426)

This tool helps e-commerce operators accurately calculate advertising return on investment (ROI) and optimize pricing strategies. It provides detailed data on ad spend, commissions, profit margins, and break-even points to drive data-informed decisions and reduce wasteful spending.

**Highlights:** Calculate advertising ROI, Optimize product pricing, Analyze ad spend and commissions, Estimate break-even ROI, Simulate costs (logistics, fees), Analyze ad monetization LTV

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 电商ROI计算器月度会员 | $0.99 | per month |
| 电商ROI计算器周度会员 | $0.99 | per 7 days |
| 电商ROI计算器年度会员 | $7.99 | per year |
| 电商ROI计算器周卡会员 | $0.99 | one-time |
| 电商ROI计算器月卡会员 | $2.99 | one-time |
| 电商ROI计算器年卡会员 | $12.99 | one-time |
| 电商ROI计算器终身会员 | $14.99 | one-time |


## Frequently asked questions

### Is 发货宝 free?

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

### Is ROI大师 free?

ROI大师 is free to download, with in-app purchases available.

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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.*