# Ohm's Law & Power Law Calculator — user reviews

> 71 indexed App Store user reviews of Ohm's Law & Power Law Calculator by Cressall Resistors Ltd, rated 4.40/5 from 26 ratings.

- Source: https://appshunter.io/ios/app/ohms-law-and-power-law-calculator/id592763080/reviews
- App overview in markdown: https://appshunter.io/ios/app/ohms-law-and-power-law-calculator/id592763080.md
- Rating breakdown: 5★ 17 · 4★ 5 · 3★ 3 · 2★ 0 · 1★ 1

## Newest reviews (16 of 71)

### 5/5 — 很實用

*2019-08-19, version 1.7*

明白的顯示各項數值

### 5/5 — Top für Azubi

*2019-06-29, version 1.7*

Ich kann ab und zu gebrauchen.

### 5/5 — Инженер Алекс

*2019-06-01, version 1.7*

Респект

### 5/5 — супер прога

*2019-05-03, version 1.7*

отличная помощь в вычислениях

### 5/5 — Help

*2019-01-26, version 1.7*

This app is excellent

### 5/5 — Все супер

*2018-08-09, version 1.7*

Спасибо за вашу работу и за обновление до iOS 11!

### 5/5 — Easy

*2017-10-03, version 1.7*

Perfect 👍🏻

### 4/5 — Needs updating for 64bit

*2017-03-30, version 1.6*

From ios 11 releasing this year they are fully dropping 32bit apps and this app will then be invisible on the store.
Otherwise great app

### 5/5 — 👍🏻👍🏻👍🏻офигенная утилита!!!

*2017-02-26, version 1.6*

Желаю разработчикам продуктивных проектов!!!

### 5/5 — 歐姆定律

*2017-02-16, version 1.6*

非常實用的程式

### 4/5 — Buona

*2016-12-02, version 1.6*

Buona e facile da usare

### 5/5 — Smooth App

*2016-10-16, version 1.6*

Works great, no hiccups for me. Straight forward and simple!

### 5/5 — My Honest Opinion

*2016-08-27, version 1.6*

Works fantastic! No Bugs or AD. Strait up Plain and simple if you know how to read your metric units. Helped me on my College homework a lot.

### 5/5 — Quite a good app

*2016-06-13, version 1.6*

This app appears to work OK. The issue of the disappearing values mentioned by some of the other reviews is valid, but movement of the padlock to the left of the values then keeps the entry on display. There are instruction now on the app also.

### 2/5 — C'est cool!

*2016-04-29, version 1.6*

App instructive

### 5/5 — Berry good

*2016-04-10, version 1.6*

非常實用

## Most critical reviews (10 lowest-rated)

### 1/5 — Nul

*2020-03-20, version 1.7*

Ne fonctionne pas

### 1/5 — Doesn’t work???

*2019-08-22, version 1.7*

Demo keeps resetting.

### 1/5 — Useless, non-functional app

*2017-03-24, version 1.6*

Why would you release something like this? It doesn't work, user interface is simply not practical or usable...how does this make it past apple approval process is beyond me

### 1/5 — IOS 10

*2016-12-26, version 1.6*

Nicht mehr zu gebrauchen. Werte lassen sich nicht eingeben.

### 1/5 — Doesn't work

*2016-03-18, version 1.6*

Enter variable in field and it doesn't hold to place value in secondary field to get calculation as shown in demo

### 1/5 — Does not work

*2015-11-13, version 1.6*

Wipes out figures after writing in voltage

### 1/5 — Bad bad bad :(

*2015-03-25, version 1.6*

Input is a real nightmare. So much that you have a demo clicker to help. But really terrible input!!! Worst ohms calculator on the store!

### 1/5 — Sad

*2015-03-07, version 1.6*

Wast of time

### 1/5 — Calcul

*2014-12-05, version 1.6*

Était très bien à pars la démo ça à fonctionné 2 fois et plus rien .impossible de rentrer 2 valeurs. Ne fonctionne plus sous iOS 6

### 1/5 — Terrible

*2014-06-24, version 1.6*

Just doesn't work! Wipes out the last figure you put in each time! No instruction....

## Most praised reviews (10 highest-rated)

### 5/5 — Good App

*2025-01-02, version 1.7*

Helps me when working on cars, motorcycles, boats etc.

### 5/5 — Eccezionale applicazione

*2024-12-28, version 1.7*

E’ da più di due anni che uso Cressal e posso affermare che è utili e facilissima da usare. Complimenti allo sviluppatore.

### 5/5 — Condivido

*2023-12-17, version 1.7*

Condivido con tutte le alte recensioni… veramente utile.

### 5/5 — Très bien

*2023-12-06, version 1.7*

Applications pratiques

### 5/5 — My “Go To”

*2022-03-11, version 1.7*

The first app I turn to when figuring out my RV battery loads and inverter efficiency issues. Love it!!!

### 5/5 — Simple and Ad Free

*2022-02-06, version 1.7*

Title says it all.

### 5/5 — Мир

*2021-09-07, version 1.7*

Будем работать, в мире. Спасибо.

### 5/5 — Good

*2019-12-25, version 1.7*

小煙計算公式方便

### 5/5 — Полезно.

*2019-09-08, version 1.7*

Все ОК. Нужная программа.

### 5/5 — V I R W

*2019-08-24*

Great app. Enter number, tap field window, enter another number and tap another field... e.g. volts then amps... and it will automatically fill the other fields/window/boxes. Single calculation and press reset to do another.
Would like the option to change the fields without resetting and starting again, but it does the job and does it well. Thank you.

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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 2026-07-06.*