# 百威生研 vs eROD agent

The clearest difference is update cadence: eROD agent at every 3 weeks against 百威生研's every 9 months. eROD agent also leads on iOS requirement (13.0 vs 15.1). 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.

百威生研 ships an update every 9 months, eROD agent every 3 weeks. The most recent releases landed on September 23, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | 百威生研 | eROD agent |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 weeks** |
| Size | 40 MB | 67 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MOBILE CARDS ENTERPRISE](https://appshunter.io/developer/1676218596) | [Yidai Yibang (Shenzhen) Health Biotechnology Co., Ltd](https://appshunter.io/developer/1790107302) |

## What reviewers say

### 百威生研

[App page](https://appshunter.io/ios/app/id6448719926)

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

**In-app purchases:** none


### eROD agent

[App page](https://appshunter.io/ios/app/erod-agent/id6742767884)

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

**In-app purchases:** none


## Frequently asked questions

### Is 百威生研 free?

百威生研 is free to download, with no in-app purchases.

### Is eROD agent free?

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

### Do 百威生研 or eROD agent have ads?

Neither 百威生研 nor eROD agent shows ads.

### Which is updated more often, 百威生研 or eROD agent?

百威生研 ships an update every 9 months, and eROD agent every 3 weeks. Most recently, 百威生研 was updated on September 23, 2026 and eROD agent on September 9, 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.*