Comparison

Electrical Calculator lite vs SCR MAXFLO™

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

SCR MAXFLO™

This app calculates pressure drop, fluid velocity, Reynold's number, and friction factor for liquids and gases. It allows users to create custom projects, manage pipes, fluids, and fittings, and supports both metric and imperial units for efficient on-site work.

Highlights
  • Pressure drop calculation
  • Fluid velocity calculation
  • Reynold's number calculation
  • Friction factor calculation
  • Custom project creation
  • Pipe, fluid, and fitting management
  • Metric and imperial unit support
Features
Read full description

The SCR MAXFLO™ App calculates pressure drop, fluid velocity, Reynold’s number, and friction factor for both liquid and gas. Other features include the ability to create custom projects as well as the ability to add and edit pipes, fluids, and fittings. Need to work in metric and imperial units? The SCR MAXFLO™ App has you covered. From changing pipe size on the fly to sharing your calculations with other users, the SCR MAXFLO™ App can help you work quickly and efficiently on any job site.

Screenshots

Electrical Calculator lite4 screens
SCR MAXFLO™4 screens

Verdict

The call

The clearest difference is in-app purchases: SCR MAXFLO™ at none against Electrical Calculator lite's 2. Electrical Calculator lite's advantage is ratings volume (578 vs 5) and update cadence (every 2 months vs every 11 months). On price, rating, ads 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

Both are free to download. Electrical Calculator lite sells 2 one-off in-app purchases. SCR MAXFLO™ asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for Electrical Calculator lite against 4.6 for SCR MAXFLO™. That said, the two scores are not equally well evidenced: Electrical Calculator lite has 578 ratings behind it against 5, so its average is the more settled of the two.

UpkeepUpdate frequency

Electrical Calculator lite ships an update every 2 months, SCR MAXFLO™ every 11 months. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
Electrical Calculator lite versus SCR MAXFLO™: the parameters behind the verdict, then further details
ParameterElectrical Calculator liteSCR MAXFLO™
PriceFreeFree
Rating4.6 (578 ratings)4.6 (5 ratings) — better
Positive reviews39.4% of reviews—
Number of ratings578 — better5
Update frequencyEvery 2 months — betterEvery 11 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Mac — betteriPhone
Requires iOS17.616.6 — better
Further details — not scored
Size18 MB7 MB
Age rating4+4+
DeveloperV PUGAZHENTHISouthwire Company

Customer experience

Electrical Calculator lite

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

SCR MAXFLO™

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

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

SCR MAXFLO™

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

SCR MAXFLO™

No in-app purchases

Questions

Is Electrical Calculator lite free?
Electrical Calculator lite is free to download, with in-app purchases available.
Is SCR MAXFLO™ free?
SCR MAXFLO™ is free to download, with no in-app purchases.
Which has better reviews, Electrical Calculator lite or SCR MAXFLO™?
SCR MAXFLO™ is rated higher. Electrical Calculator lite averages 4.6 out of 5 from 578 ratings, while SCR MAXFLO™ averages 4.6 from 5 ratings.
Do Electrical Calculator lite or SCR MAXFLO™ have ads?
Neither Electrical Calculator lite nor SCR MAXFLO™ shows ads.
Which is updated more often, Electrical Calculator lite or SCR MAXFLO™?
Electrical Calculator lite ships an update every 2 months, and SCR MAXFLO™ every 11 months. Most recently, Electrical Calculator lite was updated on October 28, 2026 and SCR MAXFLO™ on October 24, 2026.

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