# BIDPRO vs 知买

The clearest difference is update cadence: 知买 at fortnightly against BIDPRO's every 2 months. 知买 also leads on iOS requirement (12 vs 15.0). 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.

BIDPRO ships an update every 2 months, 知买 fortnightly. The most recent releases landed on November 4, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | BIDPRO | 知买 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Size | 24 MB | 37 MB |
| Requires iOS | 15.0 | **12** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [微 黄](https://appshunter.io/developer/1791795793) | [杭州知买电子商务有限公司](https://appshunter.io/developer/1852960289) |

## What reviewers say

### BIDPRO

[App page](https://appshunter.io/ios/app/bidpro/id6744049290)

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

**In-app purchases:** none


### 知买

[App page](https://appshunter.io/ios/app/id6755290773)

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

**In-app purchases:** none


## Frequently asked questions

### Is BIDPRO free?

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

### Is 知买 free?

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

### Do BIDPRO or 知买 have ads?

Neither BIDPRO nor 知买 shows ads.

### Which is updated more often, BIDPRO or 知买?

BIDPRO ships an update every 2 months, and 知买 fortnightly. Most recently, BIDPRO was updated on November 4, 2026 and 知买 on October 25, 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.*