Comparison

Electrical Formulator vs Electrical Cost

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

Head to head
About

Electrical Formulator

This app provides a comprehensive suite of electrical calculation tools for design and engineering challenges. It offers hundreds of conversion and calculation options, with features to save, print, and email results. Easily access frequently used and recently accessed formulas, with all calculations automatically stored.

Highlights
  • Over 100 electrical formulas
  • Save and organize results
  • Share results via email or print
  • Access most-used and recent formulas
  • Supports US/Imperial and metric units
  • Formula categories for batteries, motors, transformers, and more
Features
Read full description

Electrical Formulator: Your Complete Electrical Calculation Tool Solve virtually any electrical design or engineering challenge with this powerful and intuitive electrical formulator. Packed with hundreds of conversion and calculation tools, it’s the most versatile utility in your toolkit. Save, print, or email your results. Easily access your most-used and recently used formulas. Every calculation is automatically saved for future reference. Key Features: • Instant access to over 100 professional-grade electrical formulas • Save and organize your results for later reference • Share results via email or print • Highlights your most-used and recent formulas • Designed for engineers, electricians, and energy professionals Formula Categories: Batteries • Starting motor amperage • Number of cells required • Estimated operating time Cost Calculations • Appliance and lighting energy usage • Estimated usage hours for new bulbs • Insulation payback period BTU Conversions • BTU to joules, horsepower-hr, watt-hr, calories, foot-pounds, and more Generator Calculations • DC generator output • Generator amperage and efficiency Impedance & Reactance • Resistance & reactance combinations • Inductive and capacitive reactance • Total impedance and parallel circuits Kilowatts & Joules • Convert kilowatts to BTU/hr, joules/sec, lumens, horsepower, megajoules/hr, and more Motors • Single- and three-phase motor calculations • Locked rotor current • Motor kVA (including multiple input scenarios) • Motor speed analysis Ohm’s Law • Calculate for power, voltage, resistance, or current Transformers • Primary and secondary amperage • Full-load transformer sizing (208V, 240V, 480V for single and three-phase) • Impedance and amperage capacity calculations Voltage Drop • Copper and aluminum wire voltage drop (1-phase and 3-phase) • US/Imperial and metric units supported Wiring & Conduits • Wire size and resistance (copper and aluminum) • Wire length calculations • Conduit sizing Whether you’re working in the field, the lab, or the classroom, this electrical formulator helps you work faster, smarter, and with confidence. Users are able to calculate twelve formulas for FREE. Purchase a subscription to calculate additional formulas. All subscriptions come with a 1-WEEK FREE TRIAL and SUPPORT Family Sharing.

About

Electrical Cost

Calculate your theoretical electricity expenses based on appliance power usage. Track costs daily, weekly, monthly, or yearly, and analyze your spending with graphs. Save templates and export data for comprehensive expense management.

Highlights
  • Calculate theoretical energy spending
  • Track power consumption and cost
  • Change currency and choose slot types
  • Save and export data (PRO)
  • Analyze expenses with graphs
  • Input predefined or manual parameters
Features
Read full description

WANT TO CUT YOUR ELECTRICITY BILL COSTS? ELECTRICAL COST is the ultimate tool to monitor consumption and accurately predict the energy spending of your home or office. Stop being surprised by unexpected costs: take control of your energy today. WHY DOWNLOAD ELECTRICAL COST: - PRECISE CALCULATION: Discover how much it costs to use every single appliance. Get detailed estimates on a daily, weekly, monthly, and yearly basis. - BILL ARCHIVE: Record and track all your bills in one place to analyze price trends over time. - GRAPHICAL ANALYSIS: View the evolution of your spending through intuitive charts that make understanding your consumption immediate. - MAXIMUM FLEXIBILITY: Choose from predefined loads or manually enter your devices' parameters for a personalized calculation. - TARIFF MANAGEMENT: Full support for time-of-use or consumption-based rates, perfectly adapting to your energy contract. - DATA EXPORT: Save your models and download reports in PDF or text format to share or store them. - MULTI-CURRENCY: Change the currency according to your needs for worldwide use. DON'T WAIT FOR THE NEXT BILL. Download ELECTRICAL COST and start saving now by optimizing the use of your appliances.

Screenshots

Electrical Formulator4 screens
Electrical Cost4 screens

Verdict

The call

Electrical Formulator and Electrical Cost both sit at 5.0 stars, but that hides the real split: 100% of Electrical Cost's written reviews are positive against 15% of Electrical Formulator's. Electrical Cost also leads on ratings volume (3 vs 1) and iOS requirement (15.0 vs 18.4). Electrical Formulator's advantage is ads (none vs shown). On price, rating, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Electrical Formulator sells 1 one-off in-app purchase and Electrical Cost sells 3 in-app purchases, starting at $0.99 per 3 months. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Electrical Formulator against 5.0 for Electrical Cost. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews are what separate them: 15% of Electrical Formulator's written reviews are positive against 100% of Electrical Cost's.

UpkeepUpdate frequency

Electrical Formulator ships an update every 2 months, Electrical Cost monthly. The most recent releases landed on October 6, 2026 and October 3, 2026 respectively.

Scorecard4 real differences · 6 level
Electrical Formulator versus Electrical Cost: the parameters behind the verdict, then further details
ParameterElectrical FormulatorElectrical Cost
PriceFreeFree
Rating5.0 (1 ratings)5.0 (3 ratings)
Positive reviews15.2% of reviews100.0% of reviews — better
Number of ratings13 — better
Update frequencyEvery 2 monthsMonthly — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.415.0 — better
Further details — not scored
Size16 MB26 MB
Age rating4+4+
DeveloperHistorycentral.comEgal Net di Ettore Gallina

Customer experience

Electrical Formulator

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews33 reviews
Positive15.2%
Neutral9.1%
Negative75.8%

Electrical Cost

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Electrical Formulator

One-time1
  • Pro Features For Electrcial$1.99
3 purchases

Electrical Cost

Subscriptions2
  • PRO Version (3 months)$0.993 Months
  • PRO Version (1 year)7 Days trial$1.991 Year
One-time1
  • PRO Version (Lifetime)$89.99

Questions

Is Electrical Formulator free?
Electrical Formulator is free to download, with in-app purchases available.
Is Electrical Cost free?
Electrical Cost is free to download, with in-app purchases available.
Which has better reviews, Electrical Formulator or Electrical Cost?
Electrical Formulator and Electrical Cost are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.
Do Electrical Formulator or Electrical Cost have ads?
Electrical Cost shows ads; Electrical Formulator does not.
Which is updated more often, Electrical Formulator or Electrical Cost?
Electrical Formulator ships an update every 2 months, and Electrical Cost monthly. Most recently, Electrical Formulator was updated on October 6, 2026 and Electrical Cost on October 3, 2026.

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