# Siyou PDA vs B2B Direct

The clearest difference is update cadence: B2B Direct at every 9 days against Siyou PDA's monthly. 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 PDA ships an update monthly, B2B Direct every 9 days. The most recent releases landed on October 11, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Siyou PDA | B2B Direct |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 9 days** |
| Size | 71 MB | 27 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SIYOU TECHNOLOGY S.R.L](https://appshunter.io/developer/1466639725) | [WYNIE HOLDINGS SA](https://appshunter.io/developer/6787020407) |

## What reviewers say

### Siyou PDA

[App page](https://appshunter.io/ios/app/siyou-pda/id1639967455)

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

**In-app purchases:** none


### B2B Direct

[App page](https://appshunter.io/ios/app/b2b-direct/id6787020405)

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

**In-app purchases:** none


## Frequently asked questions

### Is Siyou PDA free?

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

### Is B2B Direct free?

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

### Do Siyou PDA or B2B Direct have ads?

Neither Siyou PDA nor B2B Direct shows ads.

### Which is updated more often, Siyou PDA or B2B Direct?

Siyou PDA ships an update monthly, and B2B Direct every 9 days. Most recently, Siyou PDA was updated on October 11, 2026 and B2B Direct on October 15, 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.*