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.
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.
- Ohm's Law calculations
- Voltage calculation
- Current calculation
- Resistance calculation
- Electrical formula solver
Read full descriptionHide full description
Ohm's Law Calculator
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.
- 60+ Electrical Calculators
- 16 Electrical Unit Converters
- Ohm's Law Calculations
- RLC Circuit Analysis
- Power and Current Calculations
- Transformer Calculations
- Wire Size Selector
Read full descriptionHide 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
Verdict
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
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.
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.
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.
| Parameter | Ohm's Law | Electrical Calculator lite |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (171 ratings) — better | 4.6 (579 ratings) |
| Positive reviews | 80.7% of reviews — better | 39.4% of reviews |
| Number of ratings | 171 | 579 — better |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, Mac — better |
| Requires iOS | 9.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 9 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Creature Code Mobile, LLC | V PUGAZHENTHI |
Customer experience
Ohm's Law
Electrical Calculator lite
User reviews
Ohm's Law
From 171 App Store ratingsWhat 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 ratingsWhat 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 moreShow fewer
- 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 moreShow fewer
- 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
Ohm's Law
- Remove Ads$0.99
Electrical Calculator lite
- 16 Electrical Converters$0.99
- Electrical Calculators$3.99
Questions
Is Ohm's Law free?
Is Electrical Calculator lite free?
Which has better reviews, Ohm's Law or Electrical Calculator lite?
Do Ohm's Law or Electrical Calculator lite have ads?
Which is updated more often, Ohm's Law or Electrical Calculator lite?
Other comparisons















