# 投屏小助手 vs BI4Sight

The clearest difference is ads: BI4Sight at none against 投屏小助手's shown. BI4Sight also leads on update cadence (every 5 weeks vs every 4 months) and iOS requirement (12.0 vs 14.0). On price, 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.

投屏小助手 ships an update every 4 months, BI4Sight every 5 weeks. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | 投屏小助手 | BI4Sight |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/id1423515569/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 5 weeks** |
| Size | 29 MB | 47 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [坤 张](https://appshunter.io/developer/1415616112) | [WELL PROFESSIONAL TECHNOLOGY LIMITED](https://appshunter.io/developer/1770675323) |

## What reviewers say

### 投屏小助手

[App page](https://appshunter.io/ios/app/id1423515569)

**Features:** macOS Compatibility

**In-app purchases:** none


### BI4Sight

[App page](https://appshunter.io/ios/app/bi4sight/id6630375823)

**In-app purchases:** none


## Frequently asked questions

### Is 投屏小助手 free?

投屏小助手 is free to download, with no in-app purchases.

### Is BI4Sight free?

BI4Sight is free to download, with no in-app purchases.

### Do 投屏小助手 or BI4Sight have ads?

投屏小助手 shows ads; BI4Sight does not.

### Which is updated more often, 投屏小助手 or BI4Sight?

投屏小助手 ships an update every 4 months, and BI4Sight every 5 weeks. Most recently, 投屏小助手 was updated on November 2, 2026 and BI4Sight on November 4, 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.*