Best Resistor Code Calculator Apps

250+ iOS apps curated and reviewed

4.2 avg rating
18 free apps
Updated September 2026

Looking for free resistor code calculator apps? 18 of our 250+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Resistor Code Calculator Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Resistance Color CalculatorResistance Color CalculatorFree4.9★ (60)NoNoSep 2026
2Resistor Code CalculatorResistor Code CalculatorFree3.6★ (27)YesNoJun 2026
3Electronics Toolkit!Electronics Toolkit!Free4.3★ (556)YesYesSep 2026
4Resistor Code CalculatorsResistor Code CalculatorsFreeYesNoJul 2026
5Resistor Code Calculator ProResistor Code Calculator ProFreeNoAug 2026
6resistor code calculator+resistor code calculator+FreeNoNoSep 2026
7AI Resistor Color Code ScannerAI Resistor Color Code ScannerFree3.0★ (1)NoYesSep 2026
8Resistor Color Code Calc.Resistor Color Code Calc.Free5.0★ (1)NoYesSep 2026

Top Picks for Resistor Code Calculator

Electronics Toolkit!#3

Electronics Toolkit! by Electronial

Dozens of tools in one app
Worth Considering
📚 Education
4.3😐(556 ratings)
FreeAdsIn-App Purchases
Electronics Toolkit! screenshot 1
Electronics Toolkit! screenshot 2
Electronics Toolkit! screenshot 3
Electronics Toolkit! screenshot 4
Electronics Toolkit! screenshot 5

This app provides a comprehensive suite of tools and calculators for electronics engineers, students, and hobbyists. It includes numerous calculators for resistors, LEDs, capacitors, Ohm's law, and more, alongside useful tables and unit converters.

What We Love

  • 📚 Comprehensive electronics reference material
  • 👍 Useful for beginners and students
  • 🎯 Good basic calculators for resistance and capacitance
  • 📌 Helpful pinout diagrams for Arduino and Raspberry Pi
  • ⚡ Valuable tool for hobbyists
  • 🎨 Clean and organized interface structure

Room to Improve

  • 🎨 Poor color scheme with readability issues
  • ⚪ White text on white background
  • 🔒 Excessive paywall blocking most features
  • 📢 Intrusive and excessive advertising
  • 🐛 App crashes and freezes frequently
  • ⌨️ Keyboard input not functioning properly
  • 🔄 Pro version purchase not recognized
  • 📊 Limited IC database with few options
  • 🌐 Poor translation quality (especially Russian)
  • ❌ Static reference only, minimal functionality
  • 💰 Requires separate purchases per device

More Resistor Code Calculator apps to explore

FAQ about Resistor Code Calculator

What are the best resistor code calculator apps for iPhone?
Resistance Color Calculator tops our resistor code calculator apps ranking as of September 2026, with a 4.9-star average from 60 App Store ratings, and it's free to download.
Yes — 18 of the top resistor code calculator apps we rank are free to download, including Resistance Color Calculator and Resistor Code Calculator.
Resistance Color Calculator has no ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 250+ resistor code calculator apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
This app helps you determine the resistance value of electronic resistors. You input the colors of the bands on the resistor, and it calculates the resistance value and tolerance for you.
First, select the number of rings your resistor has from the menu. Then, hold the resistor with the larger gap between rings on the right. Finally, select the colors of your resistor's bands one after another in the app to see the calculated resistance and tolerance.

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