Electrical Calculations vs Shelly Home
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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/
Shelly Home
Control and manage your smart home devices with this app. It allows for local network control without internet and connects to the cloud via a user account for remote access. Easily update your devices directly from your smartphone.
- Set up smart home devices
- Control devices locally
- Connect to Shelly Cloud
- Remote device access
- Update devices via smartphone
- User account management
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With this application you can set up and control Shelly Smart Home devices. The application can connect to the Shelly Cloud via a Shelly user account. All existing functions, however, can also be used completely without an internet connection. If you are in the local network, the devices communicate directly. Outside the local network, this is done via a Shelly user account. Updates can be easily distributed to the Shelly devices via smartphone. For this, they don't even need an internet connection. This is a private project and will be developed and improved by me as much as possible. Since I don't own all Shelly devices, some are not supported here. I am very happy about constructive feedback and suggestions.
Screenshots
Verdict
The clearest difference is ads: Shelly Home at none against Electrical Calculations's shown. Shelly Home also leads on iOS requirement (13.0 vs 15.0). Electrical Calculations's advantage is rating (4.6 vs 4.2) and ratings volume (129 vs 10). On price, review sentiment, update cadence and in-app purchases 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 Calculations sells 2 in-app purchases, starting at $3.99 per 3 months and Shelly Home sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
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 10, so its average is the more settled of the two. Written reviews complicate that: 87% of Electrical Calculations's written reviews are positive against 88% of Shelly Home's, so the app with the better star average is not the one people write more warmly about.
Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.
| Parameter | Electrical Calculations | Shelly Home |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (129 ratings) — better | 4.2 (10 ratings) |
| Positive reviews | 86.7% of reviews | 87.9% of reviews — better |
| Number of ratings | 129 — better | 10 |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 56 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | Egal Net di Ettore Gallina | DIRK GAUSMANN |
Customer experience
Electrical Calculations
Shelly Home
In-app purchases
Electrical Calculations
- PRO Version (3 months)$3.993 Months
- PRO Version (1 year)7 Days trial$7.491 Year
Shelly Home
- Donate 0.99 €$0.99
- Donate 4.99 €$4.99
- Donate 14.99 €$14.99
Questions
Is Electrical Calculations free?
Is Shelly Home free?
Which has better reviews, Electrical Calculations or Shelly Home?
Do Electrical Calculations or Shelly Home have ads?
Which is updated more often, Electrical Calculations or Shelly Home?
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