Comparison

Electrical Calculator vs Voltcraft VC

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

Voltcraft VC

Features
Read full description

Compatible with Voltcraft's VC-41 Series socket tester, the App allows the user to: • Stream data to iPhone or iPad internal memory, with real-time remote viewing • Adjust sample rate • Export data in Excel® format • Share data files directly from application • Take snapshots of the measurement area with the connected iPhone or iPad camera • Store over 15k readings with the VC-41 wireless datalogging module, for download to Phone or Tablet, with programmable datalogger file size

Screenshots

Electrical Calculator4 screens
Voltcraft VC4 screens

Verdict

The call

The clearest difference is price: Voltcraft VC at Free against Electrical Calculator's $3.99. Voltcraft VC also leads on iOS requirement (11.0 vs 17.6). On update cadence, 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

Voltcraft VC is free to download; Electrical Calculator costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Electrical Calculator ships an update every 4 months, Voltcraft VC every 2 months. The most recent releases landed on September 28, 2026 and September 15, 2026 respectively.

Scorecard2 real differences · 8 level
Electrical Calculator versus Voltcraft VC: the parameters behind the verdict, then further details
ParameterElectrical CalculatorVoltcraft VC
Price$3.99Free — better
Rating4.6 (462 ratings) — better—
Positive reviews53.3% of reviews—
Number of ratings462 — better—
Update frequencyEvery 4 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS17.611.0 — better
Further details — not scored
Size18 MB13 MB
Age rating4+17+
DeveloperV PUGAZHENTHICEI Conrad Electronic International (HK) Limited

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

Voltcraft VC

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Electrical Calculator

No in-app purchases

None

Voltcraft VC

No in-app purchases

Questions

Is Electrical Calculator free?
Electrical Calculator costs $3.99, with no in-app purchases.
Is Voltcraft VC free?
Voltcraft VC is free to download, with no in-app purchases.
Do Electrical Calculator or Voltcraft VC have ads?
Neither Electrical Calculator nor Voltcraft VC shows ads.
Which is updated more often, Electrical Calculator or Voltcraft VC?
Electrical Calculator ships an update every 4 months, and Voltcraft VC every 2 months. Most recently, Electrical Calculator was updated on September 28, 2026 and Voltcraft VC on September 15, 2026.

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