Comparison

ElectriCalc Pro vs Overhead Install Guide

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

Head to head
About

ElectriCalc Pro

This app provides electricians and electrical professionals with a powerful tool for performing complex calculations based on the latest National Electrical Code (NEC). It offers solutions for wire sizing, voltage drop, conduit sizing, and motor calculations, saving time and ensuring code compliance.

Highlights
  • NEC compliant calculations
  • Wire and conduit sizing
  • Voltage drop calculations
  • Motor full-load amps
  • Ohm's Law solver
  • Built-in help and tutorials
Features
Read full description

FREE Try Before You Buy trial, your App Store account is not charged by Apple during the free trial. Electrical Contractors, Designers, Electricians, and Lighting Specialists solve tough electrical calculations in seconds and deliver those solutions in conformance with the latest NEC®. The ElectriCalc Pro electrical code calculator is compliant with 2023, 2020, 2017, 2014, 2011, 2008, 2005, 2002, 1999, and 1996 NEC®. The official US-based National Electrical Code® (NEC) ElectriCalc Pro from Calculated Industries for iOS is a full-featured emulation of our popular #5065/#5070 models. ----- Full Functionality of our Pro Handheld Calculator ----- • Experience the power of a professional calculator on your iPhone. • ElectriCalc Pro replicates all features & solutions of our top-rated handheld model. ----- Built-in Help & Tutorials ----- • Press and hold any key for clear definitions, examples, and usage guides. • A complete user manual is also available. ----- Complete Electrical Reference Tool ----- • Save time, trouble, and money with ElectriCalc Pro's comprehensive electrical reference data. • All the info you need for calculations and code compliance is built into one app. The ElectriCalc Pro is a complete electrical reference tool that will save time, trouble, and money. ElectriCalc Pro Solutions: • Wire Sizes • Voltage Drop • Conduit Sizing • Motor Full-Load Amps • Fuse and Breaker Sizes • Service and Equipment Grounding Conductor Sizes • Parallel Resistance • Ohm’s Law Calculations – enter any two values to solve for the third • Circular MILS wire sizes ElectriCalc Pro Calculations: • Work directly in and convert between Amps, Watts, Volts, Volt-Amps, kVA, kW, PF% and EFF%, and DC Resistance • Calculate wire sizes per NEC® 310-16 and 310-17; Copper or aluminum, 3Ø/1Ø, 60°C, 75°C, 90°C insulation ratings and 100% or 125% of ampacity. Can also adjust wire sizes for ambient temperatures other than 30◦ C and more than three wires in a raceway • Integrated voltage drop solutions. Find minimum VD wire size, maximum length for any given wire size, drop percentage, actual number and percentage of Volts dropped • Conduit sizing for 12 types of conduit. Plus, it gives fill percentages, cross-sectional areas, remaining areas, and more • Find Motor Full-Load Amps per current NEC®. Works in 1Ø and 3Ø with the newly expanded tables for 3Ø induction (to 500 hp), synchronous (to 200 hp), and DC motors per NEC® 430-247, 430- 248 and 430-250 • Calculates Fuse and Breaker Sizes per NEC® 430-52 • Parallel and derated wire sizing • Parallel Resistance • NEC Table number displays when performing Wire Size calculations • Sizes overload protection per NEC® 430-32 • Automatically finds NEMA starter sizes • Calculates service and equipment grounding conductor sizes per NEC®: 250-122 and 250-66. • Enter BTU to find Kilowatts per Hour • Enter Kilowatts per Hour to find BTU • Ohm’s Law Calculations – enter any two values to solve for the third • Enter, solve, or convert to Circular MILS wire sizes Note: Electrical math is universal. However, code-based sizing solutions are based on the US National Electrical Code® (NEC); users in other countries should check with their local Code Officials for applicability. SUBSCRIPTION INFORMATION The first seven days are free. Subscriptions offered will automatically renew at the end of the chosen period. Upon purchase confirmation and completion of a free trial, payment will be charged to your Apple account. The subscription will automatically renew unless auto-renew is turned off or the subscription is canceled in settings at least one day (24 hours) before the subscription period ends. You can manage your subscription and turn off auto-renewal in your Apple account Settings > Account (Apple ID) > Subscriptions. TRADEMARKS ElectriCalc(TM) and Calculated Industries® are trademarks and registered trademarks of Calculated Industries, Inc. Copyright 2024

About

Overhead Install Guide

This utility app offers Southwire's official recommendations for installing overhead transmission electrical conductors. It provides essential field information and includes a calculator for determining bullwheel and block diameters.

Highlights
  • Overhead conductor installation recommendations
  • Information from Overhead Conductor Manual
  • Industry standard IEEE 524 data
  • Bullwheel and block diameter calculator
Features
Read full description

This app provides Southwire’s recommendations for the installation of overhead transmission electrical conductors. It is a convenient way to have the information you need for a successful installation with you in the field. Features: Recommendations for the installation of overhead transmission electrical conductors. Information from our Overhead Conductor Manual and the industry accepted standard IEEE 524. Calculator to determine the minimum diameter of the bullwheel and blocks needed for installation.

Screenshots

ElectriCalc Pro4 screens
Overhead Install Guide4 screens

Verdict

The call

The clearest difference is in-app purchases: Overhead Install Guide at none against ElectriCalc Pro's 2. ElectriCalc Pro's advantage is ratings volume (354 vs 5) and rating (4.9 vs 4.6). 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. ElectriCalc Pro sells 2 in-app purchases, starting at $4.99 per month. Overhead Install Guide asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

ElectriCalc Pro holds the better App Store score, 4.9 against 4.6. That said, the two scores are not equally well evidenced: ElectriCalc Pro has 354 ratings behind it against 5, so its average is the more settled of the two.

UpkeepUpdate frequency

ElectriCalc Pro ships an update every 10 months, Overhead Install Guide every 9 months. The most recent releases landed on September 19, 2026 and July 31, 2026 respectively.

Scorecard6 real differences · 4 level
ElectriCalc Pro versus Overhead Install Guide: the parameters behind the verdict, then further details
ParameterElectriCalc ProOverhead Install Guide
PriceFreeFree
Rating4.9 (354 ratings) — better4.6 (5 ratings)
Positive reviews78.1% of reviews—
Number of ratings354 — better5
Update frequencyEvery 10 monthsEvery 9 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS14.0 — better16.6
Further details — not scored
Size29 MB21 MB
Age rating12+4+
DeveloperCalculated IndustriesSouthwire Company

Customer experience

ElectriCalc Pro

All ratings354 ratings
Positive98.9%
Neutral0.3%
Negative0.8%
Written reviews32 reviews
Positive78.1%
Neutral6.3%
Negative15.6%

Overhead Install Guide

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

ElectriCalc Pro

Subscriptions2
  • 1 Month Full Access7 Days trial$4.991 Month
  • 1 Year Full Access7 Days trial$39.991 Year
None

Overhead Install Guide

No in-app purchases

Questions

Is ElectriCalc Pro free?
ElectriCalc Pro is free to download, with in-app purchases available.
Is Overhead Install Guide free?
Overhead Install Guide is free to download, with no in-app purchases.
Which has better reviews, ElectriCalc Pro or Overhead Install Guide?
ElectriCalc Pro is rated higher. ElectriCalc Pro averages 4.9 out of 5 from 354 ratings, while Overhead Install Guide averages 4.6 from 5 ratings.
Do ElectriCalc Pro or Overhead Install Guide have ads?
Neither ElectriCalc Pro nor Overhead Install Guide shows ads.
Which is updated more often, ElectriCalc Pro or Overhead Install Guide?
ElectriCalc Pro ships an update every 10 months, and Overhead Install Guide every 9 months. Most recently, ElectriCalc Pro was updated on September 19, 2026 and Overhead Install Guide on July 31, 2026.

Other comparisons