# Siyou B2B vs BD Seller

The clearest difference is update cadence: BD Seller at every 4 days against Siyou B2B's every 10 days. 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.

Siyou B2B ships an update every 10 days, BD Seller every 4 days. The most recent releases landed on November 11, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Siyou B2B | BD Seller |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 4 days** |
| Size | 51 MB | 26 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [SIYOU TECHNOLOGY S.R.L](https://appshunter.io/developer/1466639725) | [WYNIE HOLDINGS SA](https://appshunter.io/developer/6787020407) |

## What reviewers say

### Siyou B2B

[App page](https://appshunter.io/ios/app/siyou-b2b/id1482752003)

**Features:** Apple Wallet, Vision Pro support

**In-app purchases:** none


### BD Seller

[App page](https://appshunter.io/ios/app/bd-seller/id6794627915)

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

**In-app purchases:** none


## Frequently asked questions

### Is Siyou B2B free?

Siyou B2B is free to download, with no in-app purchases.

### Is BD Seller free?

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

### Do Siyou B2B or BD Seller have ads?

Neither Siyou B2B nor BD Seller shows ads.

### Which is updated more often, Siyou B2B or BD Seller?

Siyou B2B ships an update every 10 days, and BD Seller every 4 days. Most recently, Siyou B2B was updated on November 11, 2026 and BD Seller on November 6, 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.*