# ResistorKit

> Calculate axial resistor values from color bands. (iPhone/iPad app by Adam Hartley.)

- Source: https://appshunter.io/ios/app/resistorkit/id944897684 (this page in markdown: same URL + `.md`)
- Developer: [Adam Hartley](https://appshunter.io/developer/460056042)
- Category: Utilities, Education
- Price: Free
- Rating: 3.00/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 7.0 · 1 MB
- Languages: American English
- Released: 2014-12-05
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/resistorkit/id944897684/reviews.md

## What is ResistorKit?

ResistorKit is the simple app that lets you easily calculate the values of axial resistors by inputting the colour of the bands.

Works for 4, 5 and 6 band axial resistors.

ResistorKit has a simple and easy to use interface to make inputting the colour bands an easy task and provide visual feedback.

Perfect for hobbyists and professionals alike.

Looking for more tools? Have a look at our other app, Electronics, available on the App Store.

## Key features

- Calculate 4, 5, and 6 band resistors
- Input color bands easily
- Visual feedback for band input
- Simple and user-friendly interface

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/resistorkit/id944897684/reviews.md

### 1/5 — Screen rotation...

*2021-09-09, version 1.0.2*

Nice app, simple. But it doesn’t allow screen rotation & in our academic environment where the iPad is secured to a frame this renders the app useless without rotating our heads. Thanks for your understanding.

## Frequently asked questions about ResistorKit

### What resistor types does ResistorKit support?

ResistorKit supports the calculation of values for 4, 5, and 6 band axial resistors. This covers most common resistor configurations used by hobbyists and professionals.

### Is ResistorKit free to use?

Yes, ResistorKit is completely free to download and use. There are no in-app purchases or subscription fees required to access its functionality.

### What devices is ResistorKit compatible with?

ResistorKit is designed for iOS devices, specifically iPhones and iPods. It is suitable for users who own these Apple mobile devices.

### How often is ResistorKit updated?

The app was last updated on June 17, 2015, with version 1.0.2. While it has not received recent updates, its core functionality remains stable for its intended purpose.

### What is the age rating for ResistorKit?

ResistorKit has an age rating of 4+. This indicates that the app is suitable for children and adults alike, with no mature content.

### How does ResistorKit compare to other resistor calculators?

ResistorKit focuses on simplicity and ease of use for axial resistors. Its straightforward interface makes it a quick tool for identifying values without complex features.

### Can ResistorKit calculate SMD resistor codes?

No, ResistorKit is specifically designed for axial resistors and their color bands. It does not support the calculation of Surface Mount Device (SMD) resistor codes.

## Version history (last 3 releases)

### 1.0.2 — 2015-06-17

This app has been updated by Apple to display the Apple Watch app icon.

• ResistorKit is now ad-free.

### 1.0.1 — 2014-12-11

• Fix in-app purchase showing as "(null)" under certain circumstances

### 1.0 — 2014-12-04

No release notes.

## Apps similar to ResistorKit

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Power Calculator](https://appshunter.io/ios/app/power-calculator/id454548791) | 4.5 (2) | Free | Utilities |
| [Cable Calc+](https://appshunter.io/ios/app/cable-calc-plus/id557595191) | 4.0 (2) | Free | Utilities |
| [Color Suggest - Color Palette](https://appshunter.io/ios/app/color-suggest-color-palette/id1186516026) | 5.0 (2) | Free | Utilities |
| [EspBlufi](https://appshunter.io/ios/app/espblufi/id1450614082) | 3.3 (3) | Free | Utilities |
| [Bases](https://appshunter.io/ios/app/bases/id1355317507) | 5.0 (2) | Free | Utilities |
| [Marshal](https://appshunter.io/ios/app/marshal/id1523682436) | — | Free | Utilities |

## More apps by Adam Hartley

- [Electronics](https://appshunter.io/ios/app/electronics/id731410413)

All apps by Adam Hartley: https://appshunter.io/developer/460056042

---

*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 2026-06-10.*