# E_Test — user reviews

> 65 indexed App Store user reviews of E_Test by 杰 唐, rated 1.77/5 from 31 ratings.

- Source: https://appshunter.io/ios/app/e-test/id1478623332/reviews
- App overview in markdown: https://appshunter.io/ios/app/e-test/id1478623332.md
- Rating breakdown: 5★ 0 · 4★ 3 · 3★ 4 · 2★ 7 · 1★ 16

## Newest reviews (18 of 65)

### 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%

### 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!

### 3/5 — UC 96 Bluetooth

*2024-04-27, version 1.0*

I would have liked a manual, setup does nothing ?

### 1/5 — Utter Garbage

*2024-04-14, version 1.0*

Useless. You can’t even change the scale/zoom in on the graph. 280V range is pointless when measuring 4.2V source

### 1/5 — App enttäuschend

*2024-03-24*

Das größte Manko - man kann die Skala nicht ändern… also 300V bei USB messung…  schade.

### 1/5 — Need auto scaling.

*2024-02-13, version 1.0*

Please make the line graph screen, auto scale to the voltage and current you are using. If I’m only drawing 6 A at 8 V you can barely see anything going on. Make the screen auto scale so you can actually see what’s happening please. If you ever read this, will you make the necessary changes?

### 1/5 — Unbrauchbar

*2023-12-26*

Weder kann man damit das A-Test konfigurieren noch den Verlauf einsehen- dc geht bis 300v - bei typischen Spannungen im 3-12 V Bereich sieht man rein gar nichts

### 2/5 — Doesn’t seem to be supported.

*2023-12-18, version 1.0*

Worked ok for a while but now doesn’t connect via BT.  For the money was good but now it’s not supported not worth it.  Stay away.

### 1/5 — Typisch Chinaware

*2023-12-02*

App größer müll

### 3/5 — Wrong labels on graph

*2023-11-29, version 1.0*

The app works quite well, but there is a major error on the graphical display. The labels for voltage and current are reversed when connected to an ATorch UD24 USB tester.

### 3/5 — Guter Ansatz vom App

*2023-10-27*

Die App macht einen Übersichtlichen Eindruck nur leider lässt sich die Skala V/A nur in der Zeitachse verändern, was nicht so gut ist denn wenn man 3,2V Testen möchte was nutzt einem da die Anzeige von 300V. 
Bitte nacharbeiten dann gibts auch mehr Sterne.

### 3/5 — Manual scale and current voltage inverted

*2023-10-11*

On the scale, current and voltage are reversed, and the max current and voltage is defined by the meter capability, it would be nice to have a manual scale, or to be able to zoom vertically. The app is great otherwise

### 1/5 — iPhone 14 Pro Max on 16.1 cannot connect to Bluetooth

*2023-07-12, version 1.0*

Bummer

### 1/5 — Doesn’t work

*2023-07-06, version 1.0*

I really wanted to like this setup, but I just couldn’t get it to do anything. It’s also a good chance I just installed some spyware too. I would avoid until they can get it working.

### 3/5 — Muy simple

*2023-06-19*

Muy simple la APP

### 3/5 — Incomplète

*2023-05-06*

Le chart have scale bloqued. 
A auto scale or manual is just necessary for look correctly

## Most critical reviews (10 lowest-rated)

### 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

### 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.

### 1/5 — Nicht zu gebrauchen

*2024-10-15*

Einfach nur Speicherplatzverschwendung.

### 1/5 — Provides Basic Info, lacks any basic instructions

*2024-08-19, version 1.0*

It provides some basic details regarding your power monitoring, but doesn’t provide anything very useful.  Notifications cost money either via text or phone.  I’ve searched and can’t find any instructions whatsoever. And there’s various modes for device interface, but I can’t seem to find out how to configure any of those settings and again nothing as far as documentation on how to use it.

### 1/5 — Is it a bad joke?

*2024-07-23*

The app is unusable. Nothing works right. But it's promoted and an important part of the hardware! You're betraying the people! Build a proper app or stop claiming you had an app!

### 1/5 — Corrigir

*2024-05-12*

Não dá para regular a tensão V no gráfico

## Most praised reviews (10 highest-rated)

### 5/5 — UD24

*2023-01-20*

Everything works fine. Connects to UD24 flawlessly, transmits all data, writes graphs. Those who put 1 star to this app perhaps forgot to buy the hardware. :-))

### 5/5 — Marche très bien

*2021-03-25*

Il faut activer le Bluetooth de d’autre iPhone. Après avoir activé le testeur de tension

### 5/5 — Very amazing app

*2020-03-21*

It would be nice to graph also the temperature and allow to zoom on the graph the voltage, current and power vertically.

### 5/5 — Блютуз из рограммы

*2019-12-28*

Работает отлично и важно знать что подключаться надо к устройству не с блютус его конечно надо включить а запустить программу и подключаться уже через саму программу

### 4/5 — Does the job

*2024-07-28, version 1.0*

As pointed out as almost it's only flaw, you can't scale the y axis of the chart making the graph almost pointless. 

However the main useful function of the app is to be able to reset the various cumulative values like elapsed time and mAh. One button vs. literally a minute or more using the virtually useless on device button programming. 

If not for the ability to reset the babies with the app I'd have had to send the tester back. The app makes the tester useful simple as that.

### 4/5 — Energiekostenmessgerät-App mit Datenexport

*2024-07-06*

Diese einfache App bietet die wichtigsten Funktionen zum Anzeigen und Exportieren der Messwerte des Messgeräts.
Zum Exportieren der Messwerte:
Zuerst muss man die Sprache auf „English“ stellen, dann die App einmal schließen und neustarten.
Nun kann man nach dem Herstellen der Bluetooth-Verbindung die App sekündliche Messwerte aufzeichnen lassen, welche man dann über den Pfeil oben in Mitte exportieren kann, z. B. per Airdrop auf einen Mac. Die Dateiendung der Datei e-test.xls ist falsch und muss auf e-test.tsv geändert werten (Tab-separated vales). Dann die Datei mit Numbers öffnen und beim Import „Einstellungen anpassen“ anklicken und dann unter „Erweiterte Einstellungen“ das Dezimalzeichen: . (Punkt) einstellen und auf „Tabelle aktualisieren“ klicken.
Es werden nun Zeit (Time, 12h-Format), Effektivwert der Spannung U (Voltage), Stromstärke I (Current) und Wirkleistung P (Power, leider nur mit einer Nachkommastelle) angezeigt.
Die Scheinleistung S = U • I und der Leistungsfaktor λ = |P| / S können aus diesen Messwerten berechnet werden. Dies war für mich ausreichend.

### 4/5 — Reasonable but has some odd behaviour

*2021-12-08, version 1.0*

This app works quite well to connect to an Electronic Load (DL24). There are four things that are strange. First, the app selects "AC" as soon as it connects to the DL24 and won't let you change it (but it doesn't seem to make any difference to the results). Second, the "clear" function doesn't clear accumulated test time. It clears everything else just not that. Third, when you "share" data, it gives the file a .xls extension. The format isn't XLS, it's CSV. Not a big problem once you realise you have to rename the file. Just irritating. Four, there seems no way to control the Y axis. It assumes you are measuring high voltage. I'm working with 18V batteries so all the graph traces hug the X axis - not useful. But, otherwise, it's a reliable tool that just works.

### 4/5 — Ошибки в оформлении

*2021-05-15*

В квадратиках под графиком где ставятся галочки перепутаны надписи «Voltage» и «Current».

### 4/5 — Very useful as is

*2021-03-23, version 1.0*

I’m very happy with the hardware for what I paid, and the app is useful to monitor current, amp, power, and cumulative cost, from my phone.

### 4/5 — Works very well

*2020-10-10, version 1.0*

The app works great. But I can not set the price per KWh. Number keyboard have no decimal sign so I had to set price to £1 when price is £0.18 per KWh

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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.*