Comparison

Electrical Calculator lite vs Electrician's assistant

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

Electrician's assistant

Features
Read full description

Electrical Calculations and Guides This application is a comprehensive tool for electrical calculations, guides, and creating work orders and quotations. With its user-friendly interface, you can perform quick and accurate calculations and customize your documents. Calculations The app includes various electrical calculations: • Voltage Calculation – Determines voltage based on different parameters. • Current Calculation – Calculates current using Ohm’s law and other formulas. • Power and Resistance Calculations – Computes electrical power and resistance based on voltage, current, and other factors. • Cable Sizing – Determines the appropriate cable cross-section based on load and other parameters. • Energy Calculation – Calculates daily, monthly, and yearly energy consumption and costs. • Loop Resistance and Short-Circuit Current Calculation – Determines the total fault loop resistance and the possible short-circuit current. • Resonant Circuit Impedance Calculation – Calculates impedance considering inductance, capacitance, and resistance. • Fault Loop Impedance Calculation – Determines the required impedance for proper tripping of the protective device. Guides The app includes useful guides and theoretical explanations related to electrical systems: • Ohm’s Law – The fundamental relationship between voltage, current, and resistance. • Kirchhoff’s Law – Describes the distribution of current and voltage in circuits. • Touch Protection – Covers the basics of electrical safety and protection against electric shock. • Residual Current Device (RCD) – Explains protection mechanisms against overcurrent or electric shock. • Circuit Breakers – Provides details on the use and operation of low-voltage circuit breakers. Work Order and Quotation Creation The app allows you to create and edit work orders and quotations: • Fully Customizable Documents – Add and edit notes and items. • PDF Generation – The completed work order is automatically saved to the downloads folder. • Quick Access – Tap the cell to instantly open the PDF preview. • Sending and Importing Documents • Documents can now be sent via email as a JSON file to another device running the same app. On the receiving device, the JSON file can be imported into the app, automatically inserting the received document so it becomes available for editing. Settings The app offers customization options and purchasing features: • Print Field Configuration – Customize fields displayed in the PDF document. • Enter Your Own Details – Set up issuer information for generated documents. • Ad Removal – Remove ads with a one-time purchase. • Backup and Restore • The Settings menu now includes a backup and restore option. This allows you to export all saved documents and settings into a single file and later restore them from that file. This is useful when switching to a new device or recovering lost data. • These features ensure secure document management and seamless data transfer between devices. With this app, you can quickly and easily perform electrical calculations, manage documents, and access essential reference materials.

Screenshots

Electrical Calculator lite4 screens
Electrician's assistant4 screens

Verdict

The call

The clearest difference is ads: Electrical Calculator lite at none against Electrician's assistant's shown. Electrician's assistant's advantage is update cadence (every 2 weeks vs every 2 months) and iOS requirement (15.6 vs 17.6). On price, 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

Both are free to download. Electrical Calculator lite sells 2 one-off in-app purchases and Electrician's assistant sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Electrical Calculator lite ships an update every 2 months, Electrician's assistant every 2 weeks. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
Electrical Calculator lite versus Electrician's assistant: the parameters behind the verdict, then further details
ParameterElectrical Calculator liteElectrician's assistant
PriceFreeFree
Rating4.6 (581 ratings) — better—
Positive reviews39.4% of reviews—
Number of ratings581 — better—
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS17.615.6 — better
Further details — not scored
Size18 MB43 MB
Age rating4+4+
DeveloperV PUGAZHENTHIAlbert Parti

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

Electrician's assistant

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
1 purchases

Electrician's assistant

One-time1
  • Remove Advertising-Electrician$0.99

Questions

Is Electrical Calculator lite free?
Electrical Calculator lite is free to download, with in-app purchases available.
Is Electrician's assistant free?
Electrician's assistant is free to download, with in-app purchases available.
Do Electrical Calculator lite or Electrician's assistant have ads?
Electrician's assistant shows ads; Electrical Calculator lite does not.
Which is updated more often, Electrical Calculator lite or Electrician's assistant?
Electrical Calculator lite ships an update every 2 months, and Electrician's assistant every 2 weeks. Most recently, Electrical Calculator lite was updated on November 6, 2026 and Electrician's assistant on October 30, 2026.

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