Comparison

Electrical Calculations vs Fault Current Finder

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

Head to head
About

Electrical Calculations

This app provides a comprehensive suite of electrical calculations for professionals. It supports various international standards and offers detailed reports in PDF format. The tool covers wiring, power, motor, and electronic calculations, along with extensive conversion tables and resources.

Highlights
  • Wire size and voltage drop calculations
  • Power, current, and resistance calculations
  • Motor performance and connection diagrams
  • Electronic component calculations
  • Extensive unit conversions
  • PDF report generation
  • Support for IEC, CEI, NEC, CEC standards
Features
Read full description

Electrical Calculations is the PROFESSIONAL app for those who work with electrical systems every day: design, size and verify in just seconds, from the job site or the office. Over 200 calculations, diagrams, formulas and tables in a single app, with clear, printable PDF reports to attach to your documents. Designed for electricians, installers, designers and surveyors, it saves you time and helps you avoid mistakes: from cable sizing to short circuit. COMPLIANT WITH STANDARDS Reliable results aligned with the main standards: IEC (International Electrotechnical Commission), CEI (Italian Electrotechnical Committee), NEC (National Electrical Code), CEC (Canadian Electrical Code). WHY CHOOSE IT SAVE TIME: the calculations you'd do by hand, instantly available here. AVOID ERRORS: verified formulas and up-to-date regulatory parameters. PROFESSIONAL REPORTS: PDF reports ready for printing and archiving. ALWAYS WITH YOU: over 200 tools including calculations, converters, tables and pinouts. THE MOST USED CALCULATIONS Cable sizing and coordination with the protective device, voltage drop, operating current, current intensity, voltage and power (active, reactive, apparent). Power factor and power factor correction. Current capacity of conductors and busbars, sizing of conduits and trunking, maximum cable length. SHORT CIRCUIT AND PROTECTION Short-circuit current at a point on the line, earthing system and coordination with the residual current device, cable protection against short circuit (K²S²), power loss, cable temperature, neutral current. ELECTRIC MOTOR Motor current, power, voltage, efficiency and power factor, slip, speed, maximum torque and full-load current. Three-phase motor connection diagrams, terminal markings. Three-phase to single-phase. ELECTRONICS Color and alphanumeric codes for resistors, capacitors and inductors, SMD code, LED resistor, voltage and current divider, Zener diode, battery life, resonant frequency, fuses and transformers. CONVERSIONS Delta-star, AWG, SWG, cross-section, length, energy, temperature, pressure, Ah/kWh, var/µF, Gauss/Tesla, RPM and many more. RESOURCES AND TABLES Tripping curves, cable reactance and resistivity, cable dimensions and weight, distribution systems (TT, TN, IT), IP/IK/NEMA protection ratings, ATEX marking, insulation classes, electrical symbols, ANSI device codes, plugs and sockets, IEC 60309, NEMA and EV charging connectors, SI prefixes and units of measurement, thermistors and thermocouples. PINOUTS Ethernet RJ-45, Ethernet with PoE, USB, HDMI, VGA, DVI, RS-232, FireWire, SATA, DisplayPort, Apple Lightning, Raspberry Pi, OBD II, XLR audio/DMX, MIDI, Jack, RCA, Thunderbolt, SD Card, SIM Card and LED. Stop searching everywhere for formulas and tables: PUT YOUR ENTIRE ELECTRICAL LAB IN YOUR SMARTPHONE. Download Electrical Calculations and work faster, with standards-compliant results. Terms of service (EULA): https://www.egalnetsoftwares.com/terms_of_service_app/

About

Fault Current Finder

This tool models electrical distribution systems to calculate available fault current. It helps engineers and electricians ensure equipment is rated for maximum fault current, meeting NEC and IEC standards. Generate reports for compliance and safety.

Highlights
  • System modeling for fault current calculation
  • Evaluate equipment ratings (fuses, breakers)
  • Supports NEC and IEC standards
  • One-line diagram approach
  • Per unit methodology for accuracy
  • Generate short circuit reports
Features
Read full description

Fault Current Finder is a system modeling tool for short circuit calculations. It models an electrical distribution system to determine the available fault current (short circuit current) anywhere within the system.  This useful tool helps Engineers, Electricians and Facility Managers evaluate if devices and equipment such as fuses, circuit breakers, panels, switchboards and switches are rated to meet the maximum available fault current. NEC 2017 440.4 requires dated short circuit calculations for every new HVAC install be made available to the inspector! IEC 60364 and DIN VDE 0100 require calculations for "Short Circuit Currents in Three Phase Systems". Short circuit current is also needed for arc flash calculations meeting NFPA 70E standard. Using a typical one line diagram approach, system information can be easily entered and fault current through an entire radial system can be easily evaluated. Methodology: The internationally recognized per unit (X & R Networks) methodology is used to calculate available fault current from Utility Transformers, Generators and Inverters.  Additional resistance and reactance factors from conductors, buses and switches are calculated throughout the system. Per unit calculations provide superior model accuracy by independently calculating resistance and reactance throughout the electrical distribution system to develop X & R at each device. Meets ANSI C37.13 Low voltage equipment standard for 3 phase symmetrical fault current This app can can be used to help determine NEC (NFPA 70) and OSHA short circuit current ratings (SCCR), Ampere Interrupting Capacity (AIC) & Interrupting Rating (IR) for over current protection devices (OCPD) and associated equipment such as panels, switchboards, transfer switches, riser buses, disconnect switches, fuses and circuit breakers in systems 600V or less. To protect your facilities operational reliability, increase up time and increasing worker safety, ensure your equipment has adequate SSCR & AIC rating to meet short circuit current! Fault current finder is the easiest fault current tool! Short circuit reports are available (in-app purchase required)..

Screenshots

Electrical Calculations4 screens
Fault Current Finder2 screens

Verdict

The call

The clearest difference is review sentiment: Electrical Calculations at 87% against Fault Current Finder's 25%. Electrical Calculations also leads on rating (4.6 vs 4.2) and ratings volume (129 vs 5). Fault Current Finder's advantage is ads (none vs shown) and iOS requirement (10.0 vs 15.0). On price, in-app purchases, monetization model 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 Calculations sells 2 in-app purchases, starting at $3.99 per 3 months and Fault Current Finder sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Electrical Calculations holds the better App Store score, 4.6 against 4.2. That said, the two scores are not equally well evidenced: Electrical Calculations has 129 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 87% of Electrical Calculations's written reviews are positive against 25% of Fault Current Finder's.

UpkeepUpdate frequency

Electrical Calculations ships an update every 2 weeks, Fault Current Finder every 5 weeks. The most recent releases landed on November 11, 2026 and November 2, 2026 respectively.

Scorecard6 real differences · 4 level
Electrical Calculations versus Fault Current Finder: the parameters behind the verdict, then further details
ParameterElectrical CalculationsFault Current Finder
PriceFreeFree
Rating4.6 (129 ratings) — better4.2 (5 ratings)
Positive reviews86.7% of reviews — better25.0% of reviews
Number of ratings129 — better5
Update frequencyEvery 2 weeks — betterEvery 5 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.010.0 — better
Further details — not scored
Size56 MB23 MB
Age rating4+4+
DeveloperEgal Net di Ettore GallinaOctagon Seven LLC

Customer experience

Electrical Calculations

All ratings129 ratings
Positive92.2%
Neutral1.6%
Negative6.2%
Written reviews309 reviews
Positive86.7%
Neutral2.3%
Negative11.0%

Fault Current Finder

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews4 reviews
Positive25.0%
Neutral0.0%
Negative75.0%

In-app purchases

2 purchases

Electrical Calculations

Subscriptions2
  • PRO Version (3 months)$3.993 Months
  • PRO Version (1 year)7 Days trial$7.491 Year
2 purchases

Fault Current Finder

One-time2
  • Report Generator$19.99
  • System Upgrade$29.99

Questions

Is Electrical Calculations free?
Electrical Calculations is free to download, with in-app purchases available.
Is Fault Current Finder free?
Fault Current Finder is free to download, with in-app purchases available.
Which has better reviews, Electrical Calculations or Fault Current Finder?
Electrical Calculations is rated higher. Electrical Calculations averages 4.6 out of 5 from 129 ratings, while Fault Current Finder averages 4.2 from 5 ratings.
Do Electrical Calculations or Fault Current Finder have ads?
Electrical Calculations shows ads; Fault Current Finder does not.
Which is updated more often, Electrical Calculations or Fault Current Finder?
Electrical Calculations ships an update every 2 weeks, and Fault Current Finder every 5 weeks. Most recently, Electrical Calculations was updated on November 11, 2026 and Fault Current Finder on November 2, 2026.

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