Comparison

Electrical Calculator vs Ohm's Law+

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

Ohm's Law+

This utility app simplifies electrical calculations with a clean interface. Input any two values (voltage, current, resistance, or power) to instantly solve for the remaining ones. It also includes a resistor color code calculator and a home screen widget for quick access.

Highlights
  • Electrical calculations
  • Resistor color code calculator
  • Home screen widget
  • Sleek Liquid Glass interface
  • Accurate and fast
Read full description

Make electrical calculations effortless with Ohm’s Law+, designed for iOS 26 with a sleek Liquid Glass interface. Whether you’re a student, hobbyist, or engineer, simply enter any two known values—voltage, current, resistance, or power—and instantly solve for the rest. • Resistor Color Code Calculator – Quickly decode resistor values with an intuitive color-band layout. • Home Screen Widget – Jump straight to the calculator or resistor tool with a single tap. • Liquid Glass Design – A smooth, modern interface built for iOS 26. • Accurate. Fast. Simple. – Designed for clarity, precision, and speed. No Ads. No Clutter.

Screenshots

Electrical Calculator4 screens
Ohm's Law+4 screens

Verdict

The call

The clearest difference is update cadence: Ohm's Law+ at daily against Electrical Calculator's every 4 months. Ohm's Law+ also leads on rating (5.0 vs 4.6) and price ($0.99 vs $3.99). Electrical Calculator's advantage is ratings volume (462 vs 2) and iOS requirement (17.6 vs 26.0). On ads, in-app purchases and device support 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 costs $3.99 and Ohm's Law+ $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Ohm's Law+ holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Electrical Calculator has 462 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Electrical Calculator ships an update every 4 months, Ohm's Law+ daily. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

Scorecard6 real differences · 4 level
Electrical Calculator versus Ohm's Law+: the parameters behind the verdict, then further details
ParameterElectrical CalculatorOhm's Law+
Price$3.99$0.99 — better
Rating4.6 (462 ratings)5.0 (2 ratings) — better
Positive reviews53.3% of reviews—
Number of ratings462 — better2
Update frequencyEvery 4 monthsDaily — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS17.6 — better26.0
Further details — not scored
Size18 MB1 MB
Age rating4+4+
DeveloperV PUGAZHENTHIKanz Studios

Customer experience

Electrical Calculator

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

Ohm's Law+

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

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

Ohm's Law+

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Electrical Calculator

No in-app purchases

None

Ohm's Law+

No in-app purchases

Questions

Is Electrical Calculator free?
Electrical Calculator costs $3.99, with no in-app purchases.
Is Ohm's Law+ free?
Ohm's Law+ costs $0.99, with no in-app purchases.
Which has better reviews, Electrical Calculator or Ohm's Law+?
Ohm's Law+ is rated higher. Electrical Calculator averages 4.6 out of 5 from 462 ratings, while Ohm's Law+ averages 5.0 from 2 ratings.
Do Electrical Calculator or Ohm's Law+ have ads?
Neither Electrical Calculator nor Ohm's Law+ shows ads.
Which is updated more often, Electrical Calculator or Ohm's Law+?
Electrical Calculator ships an update every 4 months, and Ohm's Law+ daily. Most recently, Electrical Calculator was updated on October 26, 2026 and Ohm's Law+ on October 24, 2026.

Other comparisons