Comparison

Electrical Calculations vs Severe Service

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

Severe Service

This app helps users perform initial sizing for control valves, diagnose issues by selecting symptoms, and explore severe service applications across various industries. It also provides access to a technical library with videos and PDFs, a product catalog, and a contact feature for expert assistance.

Highlights
  • Control valve sizing tool
  • Issue diagnosis by symptom
  • Industry application explorer
  • Technical library with videos and PDFs
  • Fisher product catalog
  • Keyword search functionality
  • Direct contact with experts
Features
Read full description

App Features: • Sizing Tool: Quickly perform initial sizing for Fisher globe control valves. Share the results with anyone. • Diagnose an Issue: Choose the symptom that’s causing you headaches, then view Fisher products that combat the issue. • Industry Application: Access a list of severe service applications in Hydrocarbon, Power, and General Industries. • Technical Library: Keep up-to-speed on severe service issues by watching our videos and viewing PDFs. • Products: Browse thru an alphabetical listing of Fisher products and learn more about their functionality. • Search: Enter the first few letters of a keyword to easily find available topics and documents. • Contact Us: Submit a question, we have experts available to answer your questions at every step of the process.

Screenshots

Electrical Calculations4 screens
Severe Service4 screens

Verdict

The call

The clearest difference is in-app purchases: Severe Service at none against Electrical Calculations's 3. Severe Service also leads on ads (none vs shown) and iOS requirement (13.2 vs 15.0). Electrical Calculations's advantage is ratings volume (126 vs 7). On price, rating, update cadence 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 3 in-app purchases, starting at $3.99 per 3 months. Severe Service 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 Calculations against 4.7 for Severe Service. That said, the two scores are not equally well evidenced: Electrical Calculations has 126 ratings behind it against 7, so its average is the more settled of the two.

UpkeepUpdate frequency

Electrical Calculations ships an update every 3 weeks, Severe Service monthly. The most recent releases landed on September 28, 2026 and September 16, 2026 respectively.

Scorecard5 real differences · 5 level
Electrical Calculations versus Severe Service: the parameters behind the verdict, then further details
ParameterElectrical CalculationsSevere Service
PriceFreeFree
Rating4.6 (126 ratings)4.7 (7 ratings) — better
Positive reviews86.7% of reviews—
Number of ratings126 — better7
Update frequencyEvery 3 weeks — betterMonthly
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.2 — better
Further details — not scored
Size56 MB26 MB
Age rating4+4+
DeveloperEgal Net di Ettore GallinaEmerson Process Management

Customer experience

Electrical Calculations

All ratings126 ratings
Positive92.1%
Neutral1.6%
Negative6.3%
Written reviews309 reviews
Positive86.7%
Neutral2.3%
Negative11.0%

Severe Service

All ratings7 ratings
Positive85.7%
Neutral14.3%
Negative0.0%

In-app purchases

3 purchases

Electrical Calculations

Subscriptions2
  • PRO Version (3 months)$3.993 Months
  • PRO Version (1 year)7 Days trial$7.491 Year
One-time1
  • PRO Version (Lifetime)$89.99
None

Severe Service

No in-app purchases

Questions

Is Electrical Calculations free?
Electrical Calculations is free to download, with in-app purchases available.
Is Severe Service free?
Severe Service is free to download, with no in-app purchases.
Which has better reviews, Electrical Calculations or Severe Service?
Severe Service is rated higher. Electrical Calculations averages 4.6 out of 5 from 126 ratings, while Severe Service averages 4.7 from 7 ratings.
Do Electrical Calculations or Severe Service have ads?
Electrical Calculations shows ads; Severe Service does not.
Which is updated more often, Electrical Calculations or Severe Service?
Electrical Calculations ships an update every 3 weeks, and Severe Service monthly. Most recently, Electrical Calculations was updated on September 28, 2026 and Severe Service on September 16, 2026.

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