Electrical Calculator lite vs SCR MAXFLO™
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 60+ Electrical Calculators
- 16 Electrical Unit Converters
- Ohm's Law Calculations
- RLC Circuit Analysis
- Power and Current Calculations
- Transformer Calculations
- Wire Size Selector
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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.
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.
- 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
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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
Verdict
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
Both are free to download. Electrical Calculator lite sells 2 one-off in-app purchases. SCR MAXFLO™ asks for nothing beyond the download.
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.
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.
| Parameter | Electrical Calculator lite | SCR MAXFLO™ |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (578 ratings) | 4.6 (5 ratings) — better |
| Positive reviews | 39.4% of reviews | — |
| Number of ratings | 578 — better | 5 |
| Update frequency | Every 2 months — better | Every 11 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, Mac — better | iPhone |
| Requires iOS | 17.6 | 16.6 — better |
| Further details — not scored | ||
| Size | 18 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | V PUGAZHENTHI | Southwire Company |
Customer experience
Electrical Calculator lite
SCR MAXFLO™
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
Electrical Calculator lite
- 16 Electrical Converters$0.99
- Electrical Calculators$3.99
SCR MAXFLO™
No in-app purchases
Questions
Is Electrical Calculator lite free?
Is SCR MAXFLO™ free?
Which has better reviews, Electrical Calculator lite or SCR MAXFLO™?
Do Electrical Calculator lite or SCR MAXFLO™ have ads?
Which is updated more often, Electrical Calculator lite or SCR MAXFLO™?
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