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Best Ohms Apps

188+ iOS apps curated and reviewed

4.7 avg rating
16 free apps
Updated July 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 โ€” many free, many higher-rated than you'd expect.

Compare top Ohms Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Ohm's LawOhm's LawFree4.7โ˜… (165)NoYesJul 2026
2OhmPlugOhmPlugFree4.4โ˜… (943)NoNoAug 2026
3Ohms Law Calc.Ohms Law Calc.Free4.7โ˜… (1.3K)YesYesAug 2026
4Ohms: Daily Mood & WellnessOhms: Daily Mood & WellnessFree4.9โ˜… (102)YesYesJul 2026
5Ohms LawOhms LawFree4.3โ˜… (7)YesNoMay 2026
6Ohm's Law AppOhm's Law AppFreeโ€”NoNoMay 2026
7Ohms CalcOhms Calc$0.99โ€”NoNoMay 2026
8OHMs Law CalcOHMs Law Calc$1.99โ€”NoNoJun 2026

Top Picks for Ohms

Ohm's Law#1

Ohm's Law by Creature Code Mobile, LLC

Editor's Choice
๐Ÿ”ง Utilities
4.7๐Ÿ˜Š(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

  • ๐Ÿ‘ Extremely user-friendly and intuitive interface
  • โšก Fast and accurate calculations
  • ๐ŸŽฏ Simple, focused design with no unnecessary clutter
  • ๐Ÿ’ฐ Free app with minimal ads that don't interfere

Room to Improve

  • ๐Ÿ› Crashes when entering decimal values in multiple fields
  • ๐Ÿ› Reset function doesn't work properly after first use
  • โš ๏ธ App incompatible with newer iOS versions
OhmPlug#2

OhmPlug by OhmConnect, Inc

Strong Contender
๐ŸŒŸ Lifestyle
4.4๐Ÿ˜ž(943 ratings)
Free
OhmPlug screenshot 1
OhmPlug screenshot 2
OhmPlug screenshot 3
OhmPlug screenshot 4

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.

What We Love

  • ๐Ÿ’ฐ Earn money for saving energy
  • ๐Ÿค‘ Easy money
  • ๐Ÿ‘ Simple setup and use
  • ๐Ÿš€ Works flawlessly

Room to Improve

  • ๐Ÿ› Connectivity issues
  • ๐Ÿ”Œ Randomly turns off devices
  • ๐Ÿ•ฐ๏ธ Inconsistent scheduling
Ohms Law Calc.#3

Ohms Law Calc. by V PUGAZHENTHI

Wire Size & Voltage Drop
Worth Considering
๐Ÿ”ง Utilities
4.7๐Ÿ˜Š(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

  • ๐Ÿš€ Great value
  • ๐Ÿš€ Works perfectly
  • ๐Ÿš€ Fantastic app
  • ๐Ÿ‘ Best thing since sliced bread

Room to Improve

  • ๐Ÿ‘Ž Have to pay again for an app already purchased
  • ๐Ÿ‘Ž Not easy to use
  • ๐Ÿ› Paid but not unlocked, no response from developer

More Ohms apps to explore

4
Ohms: Daily Mood & Wellness
Ohms: Daily Mood & Wellness
Ohms: Daily Mood & Wellness
Mood support. Body Recovery.
Free

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.

Mood tracking and pattern discoveryPersonalized goals for mind and bodyGuided breathwork sessions
๐Ÿ’ช Health & Fitness
(102)
free with in-app purchases
5
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
๐Ÿ”ง Utilities
(7)
ad-supported
6
Ohm's Law App
Ohm's Law App
Ohm's Law App
Solve electrical circuits.
Free
๐Ÿ”ง Utilities
(0)
7
Ohms Calc
Ohms Calc
Ohms Calc
An easy to use OHMS Law Calc.
$0.99
๐Ÿ”ง Utilities
(0)
8
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
๐Ÿ” Reference
(0)
paid
9
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
๐Ÿ”ง Utilities
(9)
free with in-app purchases
10
The Ohms Law Calc
The Ohms Law Calc
The Ohms Law Calc
Simple Ohms Law Calculator
Free
๐Ÿ” Reference
(0)
11
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
๐Ÿ”ง Utilities
(52)
free with in-app purchases
12
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
๐Ÿ”ง Utilities
(26)
free
13
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
๐Ÿ”ง Utilities
(22)
free
14
Electrician Handbook โ€” Basics
Electrician Handbook โ€” Basics
Electrician Handbook โ€” 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
๐Ÿ” Reference
(986)
free
15
OHMS Collective
OHMS Collective
OHMS Collective
by OHMS Radio LTD
Free
๐Ÿ’ผ Business
(0)
16
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
๐Ÿ”ง Utilities
(1)
ad-supported
17
Ohm's Law Calculator
Ohm's Law Calculator
Ohm's Law Calculator
Power, Volts, Amps, Ohm : Calc
Free

Easily calculate electrical values like voltage, current, resistance, and power. Input any two known values, and the app will automatically compute the rest. Supports various units for precise calculations.

Calculate Voltage, Current, Resistance, PowerAutomatic calculation of remaining valuesSupports multiple units (kV, V, mV, A, mA, ฮฉ, kฮฉ, Mฮฉ, W, kW, MW, hp, BTU/hr)
๐Ÿ”ง Utilities
(2)
free with in-app purchases
18
OHMS: Ohio Music Scene
OHMS: Ohio Music Scene
OHMS: Ohio Music Scene
Discover Ohio Music & Artists
Free

Discover and connect with Ohio's vibrant music community. Stream local artists, find upcoming shows, and engage with fellow music lovers. Explore the state's rich musical history and culture through dedicated content.

Stream local Ohio artistsDiscover upcoming eventsConnect with the music community
๐ŸŽต Music
(1)
free
19
Ohms Law Calculator - voltage
Ohms Law Calculator - voltage
Ohms Law Calculator - voltage
Ohm's Law Calculator
$1.99
๐Ÿ”ง Utilities
(0)
20
Ohm's Law by EduTech Era
Ohm's Law by EduTech Era
Ohm's Law by EduTech Era
Voltage, Current & Resistance
$1.99
๐Ÿ“š Education
(0)

FAQ about Ohms

What are the best ohms apps for iPhone?
Ohm's Law tops our ohms apps ranking as of July 2026, with a 4.7-star average from 165 App Store ratings, and it's free to download.
Yes โ€” 16 of the top ohms apps we rank are free to download, including Ohm's Law and OhmPlug.
Ohm's Law has no ads and offers in-app purchases, according to its App Store listing as of July 2026.
We track 188+ ohms apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
This app is a utility tool designed to calculate electrical values based on Ohm's Law. It allows users to easily determine voltage, current, or resistance when two of these values are known.
The primary features include the ability to calculate voltage, current, and resistance using Ohm's Law formulas. It serves as a quick reference and calculation tool for electrical parameters.

Related searches

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