Comparison

Box Fill Calc vs Electrical Calculator lite

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

Head to head
About

Box Fill Calc

This app simplifies electrical box fill calculations for any job size. It allows users to create and save unlimited calculations, solve for various box sizes, and export results to spreadsheets or print directly. It supports current electrical code standards and includes a built-in construction calculator.

Highlights
  • Unlimited saved calculations
  • Solve for custom and compound boxes
  • Export results to spreadsheet
  • Direct printing via AirPrint
  • Supports 2014 NEC and 2012
  • Built-in construction calculator
Features
Read full description

Box Calc is a fast, easy way to create a schedule of box fill calculations for any size of job or just to perform a single calculation on the fly. Put your pencil down and start making professional, consistent calculations today. - Universal app allows use on both iPad, and iPhone/iPod with single purchase. - Create an unlimited list of calculations that automatically save. - Solve for any size box including custom and compound. - Export your results to a spreadsheet for formatting or printing. - Print directly from the app (requires AirPrint printer). - Support for 2014 NEC and 2012. Built in construction calculator allows intermediate calculations to be performed within the app.

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.

Screenshots

Box Fill Calc4 screens
Electrical Calculator lite4 screens

Verdict

The call

The clearest difference is price: Electrical Calculator lite at Free against Box Fill Calc's $4.99. Electrical Calculator lite also leads on rating (4.6 vs 3.2) and ratings volume (580 vs 5). Box Fill Calc's advantage is in-app purchases (none vs 2) and review sentiment (60% vs 39%). On update cadence, ads 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 lite is free to download; Box Fill Calc costs $4.99 up front. Electrical Calculator lite sells 2 one-off in-app purchases. Box Fill Calc asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Electrical Calculator lite holds the better App Store score, 4.6 against 3.2. That said, the two scores are not equally well evidenced: Electrical Calculator lite has 580 ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 60% of Box Fill Calc's written reviews are positive against 39% of Electrical Calculator lite's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Box Fill Calc ships an update every 3 months, Electrical Calculator lite every 2 months. The most recent releases landed on October 24, 2026 and November 1, 2026 respectively.

Scorecard7 real differences · 3 level
Box Fill Calc versus Electrical Calculator lite: the parameters behind the verdict, then further details
ParameterBox Fill CalcElectrical Calculator lite
Price$4.99Free — better
Rating3.2 (5 ratings)4.6 (580 ratings) — better
Positive reviews60.0% of reviews — better39.4% of reviews
Number of ratings5580 — better
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS8.0 — better17.6
Further details — not scored
Size18 MB18 MB
Age rating4+4+
DeveloperSnappy Appz Inc.V PUGAZHENTHI

Customer experience

Box Fill Calc

All ratings5 ratings
Positive60.0%
Neutral0.0%
Negative40.0%
Written reviews5 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

Electrical Calculator lite

All ratings578 ratings
Positive90.0%
Neutral4.5%
Negative5.5%
Written reviews33 reviews
Positive39.4%
Neutral6.1%
Negative54.5%

Bugs and requests

Box Fill Calc

Not enough reviews yet to summarise bugs or 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

In-app purchases

None

Box Fill Calc

No in-app purchases

2 purchases

Electrical Calculator lite

One-time2
  • 16 Electrical Converters$0.99
  • Electrical Calculators$3.99

Questions

Is Box Fill Calc free?
Box Fill Calc costs $4.99, with no in-app purchases.
Is Electrical Calculator lite free?
Electrical Calculator lite is free to download, with in-app purchases available.
Which has better reviews, Box Fill Calc or Electrical Calculator lite?
Electrical Calculator lite is rated higher. Box Fill Calc averages 3.2 out of 5 from 5 ratings, while Electrical Calculator lite averages 4.6 from 580 ratings.
Do Box Fill Calc or Electrical Calculator lite have ads?
Neither Box Fill Calc nor Electrical Calculator lite shows ads.
Which is updated more often, Box Fill Calc or Electrical Calculator lite?
Box Fill Calc ships an update every 3 months, and Electrical Calculator lite every 2 months. Most recently, Box Fill Calc was updated on October 24, 2026 and Electrical Calculator lite on November 1, 2026.

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