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Best Electronics Calculator Apps

249+ iOS apps curated and reviewed

4.5 avg rating
18 free apps
Updated September 2026

EE ToolKit is the household name in electronics calculator, but it's far from the only option. We track 249+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Electronics Calculator Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1EE ToolKitEE ToolKitFree4.7★ (1.4K)NoYesSep 2026
2Ohms Law Calc.Ohms Law Calc.Free4.7★ (1.3K)YesYesSep 2026
3Electronic Calculator: AmperioElectronic Calculator: AmperioFree was $3.995.0★ (1)NoNoMay 2026
4DigiKeyDigiKeyFree4.7★ (3.4K)YesNoSep 2026
5Electronic Circuits CalculatorElectronic Circuits CalculatorFree—YesNoAug 2026
6Calculator ∞Calculator ∞$5.994.7★ (6.3K)NoYesSep 2026
7Electronics Engineer HelperElectronics Engineer HelperFree4.8★ (432)NoYesSep 2026
8Electronics Toolkit!Electronics Toolkit!Free4.3★ (556)YesYesAug 2026

Top Picks for Electronics Calculator

EE ToolKit#1

EE ToolKit by Thomas Gruber

Electronics Engineering
Editor's Choice
📚 Education
4.7😊(1.4K ratings)
FreeIn-App Purchases
EE ToolKit screenshot 1
EE ToolKit screenshot 2
EE ToolKit screenshot 3
EE ToolKit screenshot 4
EE ToolKit screenshot 5
EE ToolKit screenshot 6

This comprehensive toolkit offers over 160 electronic applications, calculators, and reference tools for engineers, students, and hobbyists. It features a multi-functional keyboard, color code tools, audio scope, frequency generator, and component references with datasheet access. The app supports real-time circuit simulations and includes a file manager for saving calculations.

What We Love

  • 👍 Useful tools and features
  • 🚀 Comprehensive and informative
  • 👍 Intuitive and easy to use
  • 👍 Helpful for both beginners and professionals
  • 👍 Regularly updated with improvements

Room to Improve

  • 🔒 Many features locked behind paywall
  • 🐛 Some bugs and glitches reported
  • 🔍 Limited free version functionality
  • 📱 Accessibility issues for visually impaired users
Ohms Law Calc.#2

Ohms Law Calc. by V PUGAZHENTHI

Wire Size & Voltage Drop
Strong Contender
🔧 Utilities
4.7😊(1.3K ratings)
FreeAdsIn-App Purchases
Ohms Law Calc. screenshot 1
Ohms Law Calc. screenshot 2
Ohms Law Calc. screenshot 3
Ohms Law Calc. screenshot 4
Ohms Law Calc. screenshot 5
Ohms Law Calc. screenshot 6

This app provides a comprehensive suite of electrical calculations, including Ohm's Law, voltage drop, wire sizing, and impedance. It also offers numerous converters for various electrical units and parameters, aiding in circuit design and analysis.

What We Love

  • 🚀 Great value
  • 🚀 Works perfectly
  • 🚀 Fantastic app
  • 👍 Best thing since sliced bread
  • 🚀 Useful for electrical work
  • 👍 Clean and pleasing interface
  • 🚀 Terrific app

Room to Improve

  • 👎 Have to pay again for an app already purchased
  • 👎 Not easy to use
  • 🐛 Paid but not unlocked, no response from developer
  • 👎 Annoying pop-ups
  • 🐛 Keeps shutting down
  • 👎 Worst Ohms calculator ever
  • 👎 Needs more work
  • 👎 Incorrect Ohm's law formulas
Electronic Calculator: Amperio#3

Electronic Calculator: Amperio by Paul Contreras

Ohm Law,Resistor,Circuit Calc
Worth Considering
🔧 Utilities
5.0(1 ratings)
Free
Electronic Calculator: Amperio screenshot 1
Electronic Calculator: Amperio screenshot 2
Electronic Calculator: Amperio screenshot 3
Electronic Calculator: Amperio screenshot 4

This app provides instant, accurate calculations for electronics students and engineers. It includes tools for Ohm's Law, resistor color codes, voltage dividers, and unit conversions. Designed for ease of use and offline functionality, it offers a professional-grade experience without ads.

More Electronics Calculator apps to explore

FAQ about Electronics Calculator

What are the best electronics calculator apps for iPhone?
EE ToolKit tops our electronics calculator apps ranking as of September 2026, with a 4.7-star average from 1.4K App Store ratings, and it's free to download.
Yes — 18 of the top electronics calculator apps we rank are free to download, including EE ToolKit and Ohms Law Calc..
EE ToolKit has no ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 249+ electronics calculator apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
The EE ToolKit app provides a comprehensive suite of over 160 electronic applications, calculators, and reference tools. It is designed to assist electronics engineers, students, and hobbyists with various tasks, including calculations, simulations, and accessing component information.
Key features include a vast collection of electronic applications, a multi-functional keyboard, extensive color code and SMD code tools, an audio scope, a frequency generator, a large component reference section with datasheet access, and real-time circuit simulations. It also offers a favorites page and a file manager for saving calculations.