Comparison

Ohm's Law vs Electrical Calculator lite

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Ohm's Law

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.

Highlights
  • Ohm's Law calculations
  • Voltage calculation
  • Current calculation
  • Resistance calculation
  • Electrical formula solver
Features
Read full description

Ohm's Law Calculator

About

Electrical Calculator lite

This comprehensive tool offers over 60 calculators and 16 converters for electrical engineering, wiring, and circuit analysis. It supports engineers, electricians, students, and hobbyists with calculations ranging from basic Ohm's Law to complex RLC circuits and power conversions.

Highlights
  • 60+ Electrical Calculators
  • 16 Electrical Unit Converters
  • Ohm's Law Calculations
  • RLC Circuit Analysis
  • Power and Current Calculations
  • Transformer Calculations
  • Wire Size Selector
Features
Read full description

Trusted by over 15,000 users worldwide, the Electrical Calculator App is your all-in-one solution for electrical engineering, wiring, and circuit analysis. Designed for engineers, electricians, students, and hobbyists, this app offers a wide range of calculators to handle everything from basic Ohm’s Law to complex impedance and RLC circuits. Available Calculations: Basic Electrical Calculators: • Resistor Color Code (Ω) • Voltage Calculator (Ω) • Current Calculator (Ω) • Resistance Calculator (Ω) • Power Calculator (Ω) • Voltage Drop Calculations • Wire Size Selector Impedance Calculations (R-L-C): • Impedance Calculators R-L-C • R and L in Series • R and L in Parallel • R and C in Series • R and C in Parallel • L and C in Series • L and C in Parallel • R, L and C in Series • R, L and C in Parallel Power and Current Calculators: • Single Phase Power • Three Phase Power • Single Phase Current • Three Phase Current • kVA to Amps (Single Phase) • kVA to Amps (Three Phase) • Amps to kVA (Single Phase) • Amps to kVA (Three Phase) Transformer Calculations: • Transformer Calculator (Current) • Transformer Calculator (Voltage) Horsepower and Current (HP): • DC Horsepower • Single Phase Horsepower • Three Phase Horsepower • DC Current (HP) • Single Phase Current (HP) • Three Phase Current (HP) Efficiency and Power Factor: • Efficiency (DC) • Efficiency (Single Phase) • Efficiency (Three Phase) • Power Factor (Single Phase) • Power Factor (Three Phase) Lighting Calculations: • Luminous Intensity (Light Calculation) • Luminous Flux (Light Calculation) • Solid Angle (Light Calculation) Energy Storage and Cost Calculations: • Energy Cost Calculation • Energy Storage (Resistance) • Energy Storage (Inductance) • Energy Storage (Capacitance) Star-Delta Conversion: • Star to Delta Conversion • Delta to Star Conversion Reactance and Frequency Calculators: • Inductive Reactance • Capacitive Reactance • Resonant Frequency • Inductor Sizing Equation • Capacitor Sizing Equation Series and Parallel Calculations: • Resistance (Series) • Resistance (Parallel) • Inductance (Series) • Inductance (Parallel) • Capacitance (Series) • Capacitance (Parallel) • Unknown Resistance (Series) • Unknown Resistance (Parallel) • Unknown Capacitance (Series) • Unknown Capacitance (Parallel) Other Tools: • DC Generator Electrical Unit Converters: • Electrical Converter • Field Strength • Electrical Potential • Resistance • Resistivity • Conductance • Conductivity • Capacitance • Inductance • Charge • Linear Charge Density • Surface Charge Density • Volume Charge Density • Current • Linear Current Density • Surface Current Density • Power Whether you’re troubleshooting, designing, learning, or estimating, the Electrical Calculator App provides accurate, real-time results to support your electrical work. Download now and enhance your productivity with the most complete electrical calculator toolkit on the App Store.

Screenshots

Ohm's Law1 screens
Electrical Calculator lite4 screens

Verdict

The call

Ohm's Law and Electrical Calculator lite both sit at 4.7 stars, but that hides the real split: 81% of Ohm's Law's written reviews are positive against 39% of Electrical Calculator lite's. Ohm's Law also leads on iOS requirement (9.0 vs 17.6). Electrical Calculator lite's advantage is ratings volume (579 vs 171). On price, rating, update cadence and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Ohm's Law sells 1 one-off in-app purchase and Electrical Calculator lite sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for Ohm's Law against 4.6 for Electrical Calculator lite. Both are backed by a comparable volume of ratings — 171 and 579 respectively. Written reviews are what separate them: 81% of Ohm's Law's written reviews are positive against 39% of Electrical Calculator lite's.

UpkeepUpdate frequency

Ohm's Law ships an update every 4 months, Electrical Calculator lite every 2 months. The most recent releases landed on October 23, 2026 and October 29, 2026 respectively.

Scorecard3 real differences · 7 level
Ohm's Law versus Electrical Calculator lite: the parameters behind the verdict, then further details
ParameterOhm's LawElectrical Calculator lite
PriceFreeFree
Rating4.7 (171 ratings) — better4.6 (579 ratings)
Positive reviews80.7% of reviews — better39.4% of reviews
Number of ratings171579 — better
Update frequencyEvery 4 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, Mac — better
Requires iOS9.0 — better17.6
Further details — not scored
Size9 MB18 MB
Age rating4+4+
DeveloperCreature Code Mobile, LLCV PUGAZHENTHI

Customer experience

Ohm's Law

All ratings165 ratings
Positive93.3%
Neutral0.6%
Negative6.1%
Written reviews109 reviews
Positive80.7%
Neutral3.7%
Negative15.6%

Electrical Calculator lite

All ratings578 ratings
Positive90.0%
Neutral4.5%
Negative5.5%
Written reviews33 reviews
Positive39.4%
Neutral6.1%
Negative54.5%

User reviews

Ohm's Law

From 171 App Store ratings

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
  • 🔧 Requires only two values to calculate the rest

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
  • ⚠️ Outdated and hasn't been updated since iOS 6
  • ❌ Limited functionality - single resistor only

Electrical Calculator lite

From 579 App Store ratings

What we love

  • 👍 Very helpful formulas for homework
  • 👍 Easy to use interface
  • 👍 Comprehensive electricity app, a true Swiss Army knife
  • 👍 Well-designed, intuitive, and aesthetic interface
  • 👍 Great for work, very useful

Room to improve

  • anúncios são muito irritantes
  • 💰 Useful features are paywalled (RMS calculator, transformer calculator, MVA/current calculator)
  • 💰 Costs too much
  • 💰 Extremely basic calculators, rest require purchase
  • 💰 Unlock option doesn't work

Bugs and requests

Ohm's Law

Reported bugs

8 issues
  • App crashes when entering decimal points in multiple fields simultaneously
  • Reset button fails to clear values after first use
  • Large calculations cause app to crash
  • Crashes on iPhone SE and iPhone 7 Plus with iOS 10+
  • App won't open or frequently crashes on some devices
Show 3 more
  • Crashes when entering ohms values
  • Decimal point entry causes immediate crash on certain devices
  • App unstable and incompatible with iOS 10 and later versions

Requested features

9 requests
  • AC/DC checkbox option
  • Three-phase power calculations
  • Parallel and combination circuit support
  • Impedance and reactance calculations
  • Ohm's Wheel reference tool
Show 4 more
  • Useful electrical tables
  • Example calculations showing work/formula
  • Number pad input instead of full keyboard
  • iOS compatibility updates for newer versions

Electrical Calculator lite

Reported bugs

2 issues
  • Unlock option doesn’t work
  • Voltage drop calculator is incorrect compared to other apps

Requested features

3 requests
  • Output vs frequency sweep plotting for resonance points or impedance graphs for RL and RC circuits
  • Add MHz option for capacitive and inductive reactance calculators
  • Add MHz option for resonance frequency calculator

In-app purchases

1 purchases

Ohm's Law

One-time1
  • Remove Ads$0.99
2 purchases

Electrical Calculator lite

One-time2
  • 16 Electrical Converters$0.99
  • Electrical Calculators$3.99

Questions

Is Ohm's Law free?
Ohm's Law is free to download, with in-app purchases available.
Is Electrical Calculator lite free?
Electrical Calculator lite is free to download, with in-app purchases available.
Which has better reviews, Ohm's Law or Electrical Calculator lite?
Ohm's Law is rated higher. Ohm's Law averages 4.7 out of 5 from 171 ratings, while Electrical Calculator lite averages 4.6 from 579 ratings.
Do Ohm's Law or Electrical Calculator lite have ads?
Neither Ohm's Law nor Electrical Calculator lite shows ads.
Which is updated more often, Ohm's Law or Electrical Calculator lite?
Ohm's Law ships an update every 4 months, and Electrical Calculator lite every 2 months. Most recently, Ohm's Law was updated on October 23, 2026 and Electrical Calculator lite on October 29, 2026.

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