# BT1 Tester vs WCHUartMobile

The clearest difference is update cadence: WCHUartMobile at every 3 days against BT1 Tester's every 5 weeks. BT1 Tester's advantage is iOS requirement (7.0 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.

BT1 Tester ships an update every 5 weeks, WCHUartMobile every 3 days. The most recent releases landed on October 13, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | BT1 Tester | WCHUartMobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/bt1-tester/id1098097935/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 days** |
| Monetization | Free | — |
| Size | 7 MB | 5 MB |
| Requires iOS | **7.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Leagend Optoelectronics Co., Ltd.](https://appshunter.io/developer/6798210621) | [南京沁恒微电子股份有限公司](https://appshunter.io/developer/1580700719) |

## What reviewers say

### BT1 Tester

[App page](https://appshunter.io/ios/app/bt1-tester/id1098097935)

This utility app tests 12V car batteries, providing results on their condition, such as good, bad, or needing replacement. It displays the battery's voltage, volume, and overall health.

**Highlights:** Tests 12V car battery voltage, Measures battery volume, Assesses battery health, Displays test results (good, bad, replace)

**In-app purchases:** none


### WCHUartMobile

[App page](https://appshunter.io/ios/app/wchuartmobile/id6798095159)

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

**In-app purchases:** none


## Frequently asked questions

### Is BT1 Tester free?

BT1 Tester is free to download, with no in-app purchases.

### Is WCHUartMobile free?

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

### Do BT1 Tester or WCHUartMobile have ads?

Neither BT1 Tester nor WCHUartMobile shows ads.

### Which is updated more often, BT1 Tester or WCHUartMobile?

BT1 Tester ships an update every 5 weeks, and WCHUartMobile every 3 days. Most recently, BT1 Tester was updated on October 13, 2026 and WCHUartMobile on October 7, 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.*