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Best Ohms Apps

188+ iOS apps curated and reviewed

4.4 avg rating
17 free apps
Updated June 2026

Ohm's Law is the household name in ohms, but it's far from the only option. We track 188+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Top Picks for Ohms

Ohm's Law#1

Ohm's Law by Creature Code Mobile, LLC

Editor's Choice
🔧 Utilities
4.7😊(165 ratings)
FreeIn-App Purchases
Ohm's Law screenshot 1

This utility app calculates electrical resistance, voltage, and current using Ohm's Law. It provides a quick and easy way to solve electrical formulas for various applications.

What We Love

  • 👍 Extremely user-friendly and intuitive interface
  • ⚡ Fast and accurate calculations
  • 🎯 Simple, focused design with no unnecessary clutter
  • 💰 Free app with minimal ads that don't interfere

Room to Improve

  • 🐛 Crashes when entering decimal values in multiple fields
  • 🐛 Reset function doesn't work properly after first use
  • ⚠️ App incompatible with newer iOS versions
Ohms: Daily Mood & Wellness#2

Ohms: Daily Mood & Wellness by Ohms Inc.

Mood support. Body Recovery.
Strong Contender
💪 Health & Fitness
4.9(102 ratings)
FreeAdsIn-App Purchases
Ohms: Daily Mood & Wellness screenshot 1
Ohms: Daily Mood & Wellness screenshot 2
Ohms: Daily Mood & Wellness screenshot 3
Ohms: Daily Mood & Wellness screenshot 4
Ohms: Daily Mood & Wellness screenshot 5
Ohms: Daily Mood & Wellness screenshot 6

Understand your well-being by connecting your feelings with your daily activities. Discover what impacts your mood and receive personalized goals to improve your mind and body. Features include mood tracking, guided breathwork, and reflective journaling.

Ohms Law Calc.#3

Ohms Law Calc. by V PUGAZHENTHI

Wire Size & Voltage Drop
Worth Considering
🔧 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

Room to Improve

  • 👎 Have to pay again for an app already purchased
  • 👎 Not easy to use
  • 🐛 Paid but not unlocked, no response from developer

More Ohms apps to explore

4
Ohms Law
Ohms Law
Ohms Law
Ohms Law Calculator
Free

This utility app calculates voltage, current, resistance, and power using Ohm's Law. Simply input any two values, and the app will compute the remaining two, providing a comprehensive tool for electrical calculations.

Calculate VoltageCalculate CurrentCalculate Resistance
🔧 Utilities
(7)
ad-supported
5
OhmPlug
OhmPlug
OhmPlug
by OhmConnect, Inc
Free

Control smart plugs remotely to save energy and add convenience. Automate your home with routines, voice commands, and group devices by room. Earn rewards for energy savings through an optional connected service.

Remote appliance controlVoice control integrationSmart home routines
🌟 Lifestyle
(943)
free
6
Ohm's Law App
Ohm's Law App
Ohm's Law App
Solve electrical circuits.
Free
🔧 Utilities
(0)
7
Ohm's Law & Power Law Calculator
Ohm's Law & Power Law Calculator
Ohm's Law & Power Law Calculator
by Cressall Resistors Ltd
Free

This app calculates electrical parameters based on Ohm's and power laws. Input any two values (voltage, current, resistance, or power) and the app will automatically compute the remaining two. It allows for continuous "what-if" scenarios by locking one parameter and recalculating others.

Ohm's Law calculationsPower Law calculationsLock and unlock parameters
🔧 Utilities
(26)
free
8
The Ohms Law Calc
The Ohms Law Calc
The Ohms Law Calc
Simple Ohms Law Calculator
Free
🔍 Reference
(0)
9
Resistor Color Band Calculator
Resistor Color Band Calculator
Resistor Color Band Calculator
Resistance + Tolerance + Temp
Free

Easily calculate resistor resistance, tolerance, and temperature coefficients. Supports 4, 5, and 6 band codes with a user-friendly interface for electronics enthusiasts.

Calculate resistance, tolerance, and temperature coefficientsSupports 4, 5, and 6 band resistor codesIntuitive color band selection interface
🔧 Utilities
(22)
free
10
OHMS: Ohio Music Scene
OHMS: Ohio Music Scene
OHMS: Ohio Music Scene
Discover Ohio Music & Artists
Free
🎵 Music
(1)
11
OHMs Law Calc
OHMs Law Calc
OHMs Law Calc
by Jonathan Mellen
$1.99

This tool calculates Ohm's Law for single and three-phase applications using vector calculations for balanced and unbalanced loads. It quickly determines Watts, Volts, Amps, or Ohms, and can back-calculate load resistance. Widget support is included.

Single and three-phase calculationsVector calculations for unbalanced loadsCalculate Watts, Volts, Amps, or Ohms
🔍 Reference
(0)
paid
12
Ohm & Watt Law Electrical Calc
Ohm & Watt Law Electrical Calc
Ohm & Watt Law Electrical Calc
Volt,Current,Power,Resistance
Free

This utility app quickly calculates voltage, current, resistance, and power using Ohm's and Watt's laws. It's designed for electricians, engineers, and students, offering instant, accurate results with a simple interface. Works offline and is ideal for field calculations or exam preparation.

Calculate Voltage, Current, Resistance, PowerSupports Ohm's Law & Watt's LawBeginner-friendly interface
🔧 Utilities
(49)
free with in-app purchases
13
Resistance Calculator: In Ohms
Resistance Calculator: In Ohms
Resistance Calculator: In Ohms
Resistor bands, Watt & Ohm Law
Free

Instantly calculate resistor resistance values from color codes (3-6 bands). Includes Ohm's Law and Watt's Law calculators for voltage, current, and power. Ideal for electronics enthusiasts and professionals.

Decode resistor color codesSupports 3-6 band resistorsOhm's Law calculator
🔧 Utilities
(10)
free with in-app purchases
14
Electrician Handbook — Basics
Electrician Handbook — Basics
Electrician Handbook — Basics
Electric circuit, voltage, ohm
Free
$5.99 | 100% OFF

This app provides electricians, students, and installers with essential electrical theory, interactive diagrams, and practical calculators. It includes a community forum for users to share knowledge and seek advice, all accessible offline without ads or subscriptions.

Electrical theory topicsInteractive circuit diagramsCalculators and formulas
🔍 Reference
(965)
free
15
Ugly's Electrical References
Ugly's Electrical References
Ugly's Electrical References
by Informed Publishing
$12.99

This app provides electricians and electrical professionals with up-to-date digital information based on the National Electrical Code. It includes formulas, wiring diagrams, conduit bending guides, and calculators for various electrical calculations. The app is designed for on-the-job reference and works offline.

NEC 2026 updatesMathematical formulas and calculatorsConduit bending guide with videos
📊 Productivity
(1.5K)
paid
16
OHMS Collective
OHMS Collective
OHMS Collective
by OHMS Radio LTD
Free
💼 Business
(0)
17
Easy Ohm's Law
Easy Ohm's Law
Easy Ohm's Law
by Siu Yuen Ho
Free

This app helps you calculate voltage, current, resistance, and power. Simply input any two values, and the rest will be automatically computed with adjusted units. It supports a wide range of languages for global accessibility.

Calculate voltage, current, resistance, and powerAutomatic unit adjustmentInput any two values for instant calculation
📚 Education
(2)
free with in-app purchases
18
Ohm's Law: Circuit Calculator
Ohm's Law: Circuit Calculator
Ohm's Law: Circuit Calculator
Electrical Calculator & Solver
Free

This app simplifies electrical calculations by accurately computing voltage, current, resistance, and power. It offers a user-friendly interface and step-by-step explanations, making it ideal for students, engineers, and electricians to solve circuit problems efficiently.

Voltage calculationCurrent calculationResistance calculation
🔧 Utilities
(1)
ad-supported
19
Ohms Calc
Ohms Calc
Ohms Calc
An easy to use OHMS Law Calc.
$0.99
🔧 Utilities
(0)
20
Resistor Code Calculator
Resistor Code Calculator
Resistor Code Calculator
by Vivid Planet Software
Free

Easily determine the resistance value of electronic components using their color bands. This reference tool supports both 4 and 5-band resistors, making it ideal for makers, engineers, and students working with electronics projects.

Calculate resistor color codesSupports 4-band resistorsSupports 5-band resistors
🔍 Reference
(27)
ad-supported

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