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Resistor Plus

Resistor Plus

Resistor Calculator

0 ratings
3 reviews
📚 Education
🔧 Utilities
$2.99

Details

  • Released
  • Updated
  • February 13, 2012
  • April 25, 2026

Features

Developer

Tan Chia Ling
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About

Easily calculate resistor values and tolerance using color codes. Simply select the colors for each band, and the app instantly displays the resistance in ohms. Save your results with screenshots for future reference.

✓Resistor color code calculation
✓Tolerance calculation
✓Instant results display
✓Copy result functionality
✓Screenshot capability
✓Works on iPhone and iPad
✓Ad-free and private
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What's New in Resistor Plus

2.5

April 25, 2026

- Optimized for the latest devices. - Fixed minor bugs. - Improved and redesigned the UI.

More

User reviews

Most RecentHighest RatedLowest Rated

Worthless

Paid money for an app that doesn’t even run. I have an iPhone X. I will be looking into getting my money back
csbtr3csbtr3

Does not work

Beware..!! This app does not work. Just shows a blank screen.
Azaz123ccAzaz123cc

Does not work

Loads to a black screen and nothing there...
Can't get support...
Had to buy a competitors app because I needed something that would work right away...
Very disappointed😰
danadanadnadanadanadna

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FAQ

How do I use Resistor Plus to find a resistor's value?

To use Resistor Plus, tap to select the color values for each resistor band. The app will immediately display the calculated resistance in ohms and its tolerance.

What devices does Resistor Plus support?

Resistor Plus works seamlessly on both iPhone and iPad devices, offering a consistent experience across Apple's mobile platforms.

Is Resistor Plus free to download?

No, Resistor Plus is a paid application. It is available for a one-time purchase price of $2.99.

Does Resistor Plus have ads?

No, Resistor Plus is ad-free. The app was built with privacy in mind and does not contain any advertisements.

Can I save my resistor calculations with Resistor Plus?

Yes, you can take a screenshot of the resistor value and color code displayed in the app for future reference.

What is the age rating for Resistor Plus?

Resistor Plus has an age rating of 4+, making it suitable for a wide range of users interested in electronics.

How often is Resistor Plus updated?

The latest version of Resistor Plus is 2.0, and it was last updated on March 7, 2026. This indicates a commitment to ongoing development and improvements.

What are the color codes for resistor bands in Resistor Plus?

Resistor Plus supports standard color codes for band digits (Black-0 to White-9), multipliers (Black-x1 Ω to Violet-x10 MΩ, Gold-0.1 Ω, Silver-0.01 Ω), and tolerance (Brown-1%, Red-2%, Gold-5%, Silver-10%).