Comparison

Electrical Calculator 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

Electrical Calculator

This app provides over 65 essential electrical calculation tools and formulas for engineers, students, and professionals. It supports both USCS and SI units and includes features like resistor color code conversion and upgraded voltage drop calculations aligned with industry standards.

Highlights
  • Over 65 electrical calculation tools
  • Resistor color code calculators
  • Upgraded voltage drop calculations
  • Wire size calculations
  • Series/parallel circuit calculations
  • Energy cost calculator
  • Unit conversions
Features
Read full description

Electrical Calculator is your all-in-one app for fast, accurate, and essential electrical calculations. Packed with 60+ powerful tools, it's designed for electricians, electrical & electronics engineers, and students. Every calculator includes built-in formulas and supports both USCS and SI units. What's New: • Category filters — find any calculator in seconds with purpose-based groups: Ohm's Law, Wiring & NEC, Power & Phase, Motors, Transformers and more • Refreshed design with a cleaner look Core Calculators: • Voltage, Current, Resistance & Power (Ohm's Law) • kVA to Amps / Amps to kVA (Single & Three Phase) Electrical System Calculators: • Voltage Drop Calculator (per NEC/IEEE standards) • Wire Size Calculations (AWG & mm²) • Power, Current & Horsepower (DC, Single & Three Phase) • Efficiency & Power Factor Calculators • Neutral Current (3-Phase Unbalanced Loads) Transformers & Generators: • Transformer Current, Voltage & Resistance Imbalance • DC Generator Reactance & Impedance: • Inductive & Capacitive Reactance • Resonant Frequency • Characteristic Impedance (Parallel & Coaxial) • Impedance Calculators (R-L-C combinations) Series / Parallel Calculations: • Resistance, Inductance & Capacitance (Series & Parallel) • Unknown Resistance & Capacitance (Series & Parallel) Components: • Resistor Color Code — resistance to color bands and back • Inductor & Capacitor Sizing Formulas Lighting & Energy Tools: • Luminous Intensity, Luminous Flux & Solid Angle • Energy Cost Calculator • Energy Stored in Resistors, Inductors & Capacitors Conversions: • Star ↔ Delta Conversion • Field Strength & Electrical Potential • Resistance, Resistivity, Conductance & Conductivity • Capacitance, Inductance & Charge Density Converters • Power Converter Key Features: • Category filters for fast navigation • Flexible unit selection for inputs and outputs • Full iPad support with split view • Dark Mode and 12 languages • Clean interface for the field, the shop, and the classroom

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

Electrical Calculator4 screens
Electrical Calculator lite4 screens

Verdict

The call

The clearest difference is price: Electrical Calculator lite at Free against Electrical Calculator's $3.99. Electrical Calculator lite also leads on update cadence (every 5 weeks vs every 4 months). Electrical Calculator's advantage is in-app purchases (none vs 2) and ads (none vs shown). On rating, ratings volume, device support and iOS requirement 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

Electrical Calculator lite is free to download; Electrical Calculator costs $3.99 up front. Electrical Calculator lite sells 2 one-off in-app purchases. Electrical Calculator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for Electrical Calculator against 4.6 for Electrical Calculator lite. Both are backed by a comparable volume of ratings — 462 and 574 respectively. Written reviews are what separate them: 53% of Electrical Calculator's written reviews are positive against 41% of Electrical Calculator lite's.

UpkeepUpdate frequency

Electrical Calculator ships an update every 4 months, Electrical Calculator lite every 5 weeks. Both last shipped on September 18, 2026.

Scorecard6 real differences · 4 level
Electrical Calculator versus Electrical Calculator lite: the parameters behind the verdict, then further details
ParameterElectrical CalculatorElectrical Calculator lite
Price$3.99Free — better
Rating4.6 (462 ratings)4.6 (574 ratings)
Positive reviews53.3% of reviews — better40.6% of reviews
Number of ratings462574 — better
Update frequencyEvery 4 monthsEvery 5 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, MaciPhone, iPad, Mac
Requires iOS17.617.6
Further details — not scored
Size18 MB65 MB
Age rating4+4+
DeveloperV PUGAZHENTHIV PUGAZHENTHI

Customer experience

Electrical Calculator

All ratings462 ratings
Positive90.3%
Neutral5.2%
Negative4.5%
Written reviews15 reviews
Positive53.3%
Neutral13.3%
Negative33.3%

Electrical Calculator lite

All ratings574 ratings
Positive90.2%
Neutral4.4%
Negative5.4%
Written reviews32 reviews
Positive40.6%
Neutral6.3%
Negative53.1%

User reviews

Electrical Calculator

From 462 App Store ratings

What we love

  • 👍 Great app, useful for years
  • 👍 Good app
  • 👍 Brilliant Program
  • 👍 Essential shortcut for professionals
  • 👍 Works great

Room to improve

  • annoyance: popup advising update
  • 💸 Paid for calculators, then asked for more
  • 💸 Lost money
  • 💸 Costs extra for full content
  • 📏 No impedance calculators

Electrical Calculator lite

From 574 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

Electrical Calculator

Reported bugs

3 issues
  • Annoying popup for app update
  • Converter not working
  • App not working on older iPhone models

Requested features

2 requests
  • Include impedance calculators
  • Improve metric region compatibility for AWG cables

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

None

Electrical Calculator

No in-app purchases

2 purchases

Electrical Calculator lite

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

Questions

Is Electrical Calculator free?
Electrical Calculator costs $3.99, with no in-app purchases.
Is Electrical Calculator lite free?
Electrical Calculator lite is free to download, with in-app purchases available.
Which has better reviews, Electrical Calculator or Electrical Calculator lite?
Electrical Calculator and Electrical Calculator lite are both rated 4.6 out of 5 on the App Store, from 462 and 574 ratings respectively.
Do Electrical Calculator or Electrical Calculator lite have ads?
Electrical Calculator lite shows ads; Electrical Calculator does not.
Which is updated more often, Electrical Calculator or Electrical Calculator lite?
Electrical Calculator ships an update every 4 months, and Electrical Calculator lite every 5 weeks. Most recently, Electrical Calculator was updated on September 18, 2026 and Electrical Calculator lite on September 18, 2026.

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