# E_Test

> Bluetooth meter app for real-time voltage, current, and power monitoring. (iPhone/iPad app by 杰 唐.)

- Source: https://appshunter.io/ios/app/e-test/id1478623332 (this page in markdown: same URL + `.md`)
- Developer: [杰 唐](https://appshunter.io/developer/1475646045)
- Category: Utilities
- Price: Free
- Rating: 1.77/5 from 31 App Store ratings · 65 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.0 · 20 MB
- Languages: English, Chinese
- Released: 2019-09-19
- Data updated: 2026-08-13
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/e-test/id1478623332/reviews.md

## What is E_Test?

etest是一款连接蓝牙电表后可以实时查看电压电流功耗的app，查看电压电流功耗曲线。可连接直流交流usb三种表。使用非常简单，连接电表即可。

## Key features

- Real-time voltage, current, power display
- View power consumption curves
- Connects to DC, AC, USB meters
- Simple Bluetooth connection
- Historical data viewing

## Recent user reviews (10 of 65)

All indexed reviews: https://appshunter.io/ios/app/e-test/id1478623332/reviews.md

### 1/5 — no ability to set anything, no scaling of plots

*2026-06-08, version 1.0*

come on do some decent work. let me program the settings of the device.  and let me change the scale of the axes! all my plots are basically at the x axis since the scale is absurdly huge (300v, 150A)

### 1/5 — Promises lots and looks useful but doesn’t work

*2026-03-27, version 1.0*

I am confused. This app doesn’t connect to the usb measurement device. Pressing the Bluetooth icon pops up a blank message. Shame really because it could be handy.

### 1/5 — Faulty

*2025-11-23, version 1.0*

It could be nice if it worked

### 3/5 — Very basic, but helpful.

*2025-06-04, version 1.0*

It works for monitoring some basic readings and turning it on and off, but does not serve as a full replacement for the push button controls.

The colors under the graph for current and voltage are incorrect and should be changed.

It would be nice to be able to switch between “set up” functions from the app rather than the button on the device.

Syncing the timer with the device, but also be nice.

### 2/5 — Why making an app, to then make it useless

*2025-04-16, version 1.0*

Make an app, and publish it has a cost, why not making it useful? You made 98% of the effort, and than you waste it all for not completing the remaining 2%

### 1/5 — 软件有问题

*2025-03-24*

勾选电压，显示的是电流曲线；勾选的是电流，显示的是电压曲线……这种低级的错误都能发生。另外，电流和功率曲线，无法通过曲线看出具体的数值，这是因为表格数值标注的太大了，需要改进。

### 1/5 — Line graph

*2024-11-28, version 1.0*

Cant zoom on line graph… when checking 12v battery it shows 300v scale…

### 1/5 — Gute Hardware, katastrophale App

*2024-11-12*

Ein Armutszeugnis. Am Display kann man mehr sehen und einstellen als in der App. Da hat sich jemand überhaupt keine Mühe gemacht.

### 2/5 — Нет настроек

*2024-11-04*

Приложение очень сырое. Не правильно работает масштаб графиков. Нет изменения пределов измерений.

### 2/5 — Graph sucks

*2024-10-31*

Ok, but the bad scaling of the graph is really a no go!

## Frequently asked questions about E_Test

### What does this app do?

This application connects to Bluetooth-enabled meters to provide real-time readings of voltage, current, and power consumption. It also allows you to view historical data through graphical curves.

### What types of meters can I connect?

The app supports connections to DC, AC, and USB meters. This versatility allows you to monitor a wide range of electrical devices and systems.

### Is this app free to use?

Yes, the application is available for free. There are no in-app purchases or advertisements mentioned.

### How do I connect the meter to the app?

Connecting is very simple. Once the meter is powered on and in Bluetooth pairing mode, you can connect it directly through the app. No complex setup is required.

### What are the main use cases for this app?

This app is useful for monitoring the power consumption of various devices, checking electrical stability by observing voltage and current, and tracking energy usage over time through its curve display.

## Version history (last 1 release)

### 1.0 — 2019-09-20

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-13.*