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iResistor is an application for all pupils, students, engineers, electricians etc..

This free application lets you know the value of any resistance, whether 4-band, 5 or 6.

In addition, unlike many free applications of this kind, with iResistor, you can thanks to its advanced reverse lookup algorithm, find the color code of resistance (again, 4, 5 or 6-bands) directly from a ohm value you enter!

iResistor also lets you know if the current value belongs to one of the resistor standards / norms (E6, E12, E48 etc..).

A summary table is also given in order to explain how to understand the color code.

iOS 4.0 min.

Ratings and Reviews

4.0 out of 5
2 Ratings

2 Ratings

Will(; ,

it works fine

good app it does a good job and its free.

TheKidsITunes ,

Great app

It works great.good for reading resistors.

App Privacy

The developer, Adriweb, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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