# FactoryTest工厂测试 vs E Tool

The clearest difference is iOS requirement: E Tool at 9.0 against FactoryTest工厂测试's 13.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on September 19, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | FactoryTest工厂测试 | E Tool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/factorytest/id1403753765/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Free | — |
| Size | 38 MB | 14 MB |
| Requires iOS | 13.0 | **9.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Ultra Easy Technology Co., Ltd.](https://appshunter.io/developer/958871192) | [建周 李](https://appshunter.io/developer/1282823592) |

## What reviewers say

### FactoryTest工厂测试

[App page](https://appshunter.io/ios/app/factorytest/id1403753765)

This utility app is designed for testing Bluetooth devices. It supports devices compatible with Bluetooth protocols and aims for optimization based on user feedback for non-compatible devices.

**Highlights:** Bluetooth device testing, Protocol compatibility check, User feedback optimization, Supports iPhone, iPad, iPod

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

**In-app purchases:** none


### E Tool

[App page](https://appshunter.io/ios/app/e-tool/id1488424681)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is FactoryTest工厂测试 free?

FactoryTest工厂测试 is free to download, with no in-app purchases.

### Is E Tool free?

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

### Do FactoryTest工厂测试 or E Tool have ads?

Neither FactoryTest工厂测试 nor E Tool shows ads.

### Which is updated more often, FactoryTest工厂测试 or E Tool?

FactoryTest工厂测试 ships an update monthly, and E Tool monthly. Most recently, FactoryTest工厂测试 was updated on September 19, 2026 and E Tool on September 23, 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.*