Comparison

Electrical Calculator lite vs iOSComtradeViewer

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

Head to head
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.

About

iOSComtradeViewer

Features
Read full description

The iOSComtradeViewer is a professional analysis tool for viewing and evaluating COMTRADE files (disturbance records) on iPhone and iPad. The app allows users to import COMTRADE files and visualize recorded data for detailed fault and event analysis. In the waveform view, all analog and binary signals are displayed over time, enabling precise inspection of Analog values and status signals. For advanced analysis, users can switch to a vector view, where phasors are displayed along the time axis, allowing detailed examination of vector behavior during disturbances and transient events. The iOSComtradeViewer is optimized for mobile use, providing fast access to disturbance records directly in the field or during commissioning and service work. Compatible with iOS and iPadOS 17.8 and later.

Screenshots

Electrical Calculator lite4 screens
iOSComtradeViewer3 screens

Verdict

The call

The clearest difference is price: Electrical Calculator lite at Free against iOSComtradeViewer's $0.99. iOSComtradeViewer's advantage is in-app purchases (none vs 2) and ads (none vs shown). On update cadence, 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; iOSComtradeViewer costs $0.99 up front. Electrical Calculator lite sells 2 one-off in-app purchases. iOSComtradeViewer asks for nothing beyond the download.

UpkeepUpdate frequency

Electrical Calculator lite ships an update every 5 weeks, iOSComtradeViewer every 6 weeks. The most recent releases landed on October 18, 2026 and October 11, 2026 respectively.

Scorecard3 real differences · 7 level
Electrical Calculator lite versus iOSComtradeViewer: the parameters behind the verdict, then further details
ParameterElectrical Calculator liteiOSComtradeViewer
PriceFree — better$0.99
Rating4.6 (574 ratings) — better—
Positive reviews40.6% of reviews—
Number of ratings574 — better—
Update frequencyEvery 5 weeks — betterEvery 6 weeks
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS17.617.6
Further details — not scored
Size65 MB4 MB
Age rating4+4+
DeveloperV PUGAZHENTHIDennis Dchicha

Bugs and requests

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

iOSComtradeViewer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Electrical Calculator lite

One-time2
  • 16 Electrical Converters$0.99
  • Electrical Calculators$3.99
None

iOSComtradeViewer

No in-app purchases

Questions

Is Electrical Calculator lite free?
Electrical Calculator lite is free to download, with in-app purchases available.
Is iOSComtradeViewer free?
iOSComtradeViewer costs $0.99, with no in-app purchases.
Do Electrical Calculator lite or iOSComtradeViewer have ads?
Electrical Calculator lite shows ads; iOSComtradeViewer does not.
Which is updated more often, Electrical Calculator lite or iOSComtradeViewer?
Electrical Calculator lite ships an update every 5 weeks, and iOSComtradeViewer every 6 weeks. Most recently, Electrical Calculator lite was updated on October 18, 2026 and iOSComtradeViewer on October 11, 2026.

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