Comparison

Electrical Formulator vs Electrical Wiring Pro 2014+

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 Wiring Pro 2014+

This app provides electricians and electrical professionals with over 30 calculation tools for designing and documenting code-compliant installations. It supports multiple National Electrical Code versions and offers features for ampacity, wire sizing, box fill, conduit fill, bending, and load calculations.

Highlights
  • Ampacity and wire sizing
  • Box fill and wire bending space
  • Conduit fill calculations
  • Basic conduit bending tools
  • Residential load calculations
  • Voltage drop calculations
  • Cover depth and PIRE wheel
Features
Read full description

Current through the 2014 version of the NEC. The 2008 and 2014 NEC are also supported. For support of the 2017 NEC, as well as the 2008, 2011, and 2014 codes, the companion app Electrical Wiring Pro 2017 is available. Both apps run on iPhones in standard mode, or on iPads in "Master/Detail" mode allowing the user to quickly navigate the app. The app offers more than 30 calculation tools Electricians and other Electrical Professionals can use every day to efficiently design and document code-compliant installations. AMPACITY AND WIRE SIZING per Article 310 + Size -> Ampacity + Ampacity - Size + Grounds - GEC and EGC Sizing + Dwelling Service and Feeder Sizing (From table or "83%" rule) - Adjustments for Ambient, # conductors and height above roof BOX FILL / WIRE BENDING SPACE + Wire, Device and Hardware Box Sizing + Cable option vs wires, e.g. for Romex + *NEW* Wire Bending Space for Cabinets, Gutters, Motor Controllers etc *NEW* + Standard Box Wire and Ring Information CONDUIT FILL per Chapter 9 + Conduit Size Needed + How Full Conduit is given a set of wires + Max # of Wires Per Conduit + Conduit Info + Wire Info BASIC CONDUIT BENDING + Offset (simple or compound) + Parallel Conduit Spacing + Three Bend Saddle + Corner Obstacle + Segment Bend + Minimum Bend Radii per Code - Conduit Calculations in fractions or Inches RESIDENTIAL LOAD CALCULATIONS per Article 220 + Single Family Dwellings, including Part III (Standard), Part IV (Optional), Reduced Neutral Volt-Amps and Current + Multi Family Dwellings, including "House" Loads; Standard, Optional and Reduced Neutrals + Range (and other Cooking) Calculations VOLTAGE DROP per Chapter 9 + Voltage and % Drops + Wire Sizing for a given drop/% + Maximum Wire Length + Maximum Load + Impedance per Code OTHER + Cover Depth for buried wires and conduits per 300.5 and 300.50 + PIRE Wheel + Receptacle configurations + Phone/Ethernet pinouts

Screenshots

Electrical Formulator4 screens
Electrical Wiring Pro 2014+4 screens

Verdict

The call

The clearest difference is review sentiment: Electrical Wiring Pro 2014+ at 60% against Electrical Formulator's 15%. Electrical Wiring Pro 2014+ also leads on in-app purchases (none vs 1) and ratings volume (7 vs 1). Electrical Formulator's advantage is rating (5.0 vs 3.9). On price, update cadence and ads 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. Electrical Wiring Pro 2014+ asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Electrical Formulator holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Electrical Wiring Pro 2014+ has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 15% of Electrical Formulator's written reviews are positive against 60% of Electrical Wiring Pro 2014+'s, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 31, 2026 and November 2, 2026 respectively.

Scorecard7 real differences · 3 level
Electrical Formulator versus Electrical Wiring Pro 2014+: the parameters behind the verdict, then further details
ParameterElectrical FormulatorElectrical Wiring Pro 2014+
PriceFreeFree
Rating5.0 (1 ratings) — better3.9 (7 ratings)
Positive reviews15.2% of reviews60.0% of reviews — better
Number of ratings17 — better
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPadiPhone, iPad, iPod, Apple Watch — better
Requires iOS18.411.0 — better
Further details — not scored
Size16 MB29 MB
Age rating4+4+
DeveloperHistorycentral.comIntineo LLC

Customer experience

Electrical Formulator

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

Electrical Wiring Pro 2014+

All ratings7 ratings
Positive57.1%
Neutral28.6%
Negative14.3%
Written reviews5 reviews
Positive60.0%
Neutral40.0%
Negative0.0%

In-app purchases

1 purchases

Electrical Formulator

One-time1
  • Pro Features For Electrcial$1.99
None

Electrical Wiring Pro 2014+

No in-app purchases

Questions

Is Electrical Formulator free?
Electrical Formulator is free to download, with in-app purchases available.
Is Electrical Wiring Pro 2014+ free?
Electrical Wiring Pro 2014+ is free to download, with no in-app purchases.
Which has better reviews, Electrical Formulator or Electrical Wiring Pro 2014+?
Electrical Formulator is rated higher. Electrical Formulator averages 5.0 out of 5 from 1 ratings, while Electrical Wiring Pro 2014+ averages 3.9 from 7 ratings.
Do Electrical Formulator or Electrical Wiring Pro 2014+ have ads?
Neither Electrical Formulator nor Electrical Wiring Pro 2014+ shows ads.
Which is updated more often, Electrical Formulator or Electrical Wiring Pro 2014+?
Electrical Formulator ships an update every 2 months, and Electrical Wiring Pro 2014+ every 2 months. Most recently, Electrical Formulator was updated on October 31, 2026 and Electrical Wiring Pro 2014+ on November 2, 2026.

Other comparisons