Comparison

Electrician's Helper vs Ugly's Electrical References

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

Head to head
About

Electrician's Helper

This app simplifies electrical work by providing quick access to electrical codes and performing complex calculations for installations. It helps electricians find conductor ampacity, calculate voltage drop, determine box fill, and size raceways, among many other essential functions.

Highlights
  • 3 phase delta and wye circuit calculations
  • Conductor ampacity lookup (NEC/CEC)
  • Voltage drop calculation
  • Box fill calculation
  • Raceway fill and sizing
  • Motor calculations
  • Transformer calculations
Features
Read full description

Electrician’s Helper will take the hassle out of looking up electrical codes and doing complex calculations for installations. With Electrician’s Helper you can... ● Calculate voltage, current and power in 3 phase delta and wye circuits. ● Find the ampacity of a conductor as per the NEC and CEC tables. ● Calculate the voltage drop in a line based on length, size, current and temperature. ● Find the total box fill by entering the size and number of conductors, straps and clamps. ● Find the maximum number of conductors allowed in a particular size raceway based on NEC and CEC rules. ● Determine what size raceway is needed for a bundle of conductors. ● Find the maximum bend radius of a conduit. ● Find the maximum capacitor kvar for a motor and the current reduction obtained. ● Find the motor current, heater current, breaker required, wire size, starter and conduit size for a particular 3 phase motor. ● Find the full load current of an induction, squirrel cage, and synchronous motor. ● Find the locked rotor current of a single or 3 phase motor. ● Estimate the Maximum Pull Tension. ● Calculate voltage, current and kVA of single and three phase transformers. ● Do basic ohm’s law calculations. ● Find decimal equivalents of fractions. ● Convert temperature scales. ● Look up connector configurations. ● Look up NEC tables 315.60(C)(1-20) Tested with iOS 16.6 thru iOS 26.3 Please note that this is a calculator for codes used in the NEC and CEC. It is not a replacement for the code books.

About

Ugly's Electrical References

This app provides electricians and electrical professionals with up-to-date digital information based on the National Electrical Code. It includes formulas, wiring diagrams, conduit bending guides, and calculators for various electrical calculations. The app is designed for on-the-job reference and works offline.

Highlights
  • NEC 2026 updates
  • Mathematical formulas and calculators
  • Conduit bending guide with videos
  • Ampacity and conduit fill information
  • Wiring diagrams
  • Conversion tables
  • Works offline
Features
Read full description

The Ugly's Electrical References App has been updated to reflect changes to the 2026 National Electrical Code (NEC) and the 2026 Edition of our popular Ugly’s Electrical References book. The Ugly’s App offers the most pertinent, up-to-date digital information for electricians, including table change information, mathematical formulas; National Electrical Manufacturers Association (NEMA) wiring configurations; a conduit bending guide with videos, ampacity and conduit fill information, transformer and control circuit wiring diagrams, and conversion tables. The 2026 Edition: * Reflects changes to the 2026 NEC * Features expanded coverage of the following topics: * Full-load currents for 3-phase transformers  * Maximum number of conductors in electrical metallic tubing for trade sizes 5 and 6  * Equipment grounding conductors  * General lighting loads for non-dwelling occupancies  * Overview of important NEC code changes from 2020, 2023 and 2026  Electricians and electrical professionals have used ‘Ugly’s Electrical References’ book as their on-the-job reference for over 35 years. This app will serve you even better in the field today.  FEATURING Calculators and Interactive Features • Ohm’s Law Calculator • Voltage Drop Calculator • Ampacity Calculator • To Find: Amps, Watts, Horsepower, KVA • To Find: Inductance, Impedance, Reactance • Three-phase AC Motor Data: Starter, Breaker, Heater, Wire, and Conduit Size • Power Factor Correction • Full Load Current for Motors and Transformers • Locked-Rotor Current Calculator • Offset Bending Calculator • Conduit Fill Calculator • Conversions for Area, Length, Temperature, Time, Volume, and Weight • NEMA Wiring Configurations *Pinch & Zoom for improved readability *Conduit Bending Video Tutorials *Search function helps you quickly find what you need to know *NEC Updater outlines and explains changes to the National Electrical Code© *Electrical Safety including definitions, boundaries, procedures, PPE guidance, and life-saving *First aid procedures *Blueprint symbol identifier *Bookmark your commonly used screens *High-definition images and interactive tables that can be zoomed in for detail *Works offline *Great for electricians, students, engineers, contractors, maintenance workers, and military Interested in a buying more than one copy of the Ugly’s Electrical Reference app for your commercially owned devices? Please email info[at]uglys[dot]net for details on volume purchases. Privacy Policy - http://www.jblearning.com/privacy/ Terms of Service - http://www.jblearning.com/use/ Support – http://www.uglys.net/appsupport The Ugly’s Electrical Reference app is part of the popular Ugly’s Professional Reference® series, which is an imprint of Jones & Bartlett Learning. National Electrical Code and NFPA 70 are registered trademarks of the National Fire Protection Agency and are not associated with Ugly’s Electrical References in any way.

Screenshots

Electrician's Helper4 screens
Ugly's Electrical References4 screens

Verdict

The call

The clearest difference is ratings volume: Ugly's Electrical References at 1.5K against Electrician's Helper's 13. Ugly's Electrical References also leads on chart position (#6 vs unranked) and iOS requirement (17 vs 26.0). On price, rating, review sentiment and update cadence 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

Electrician's Helper costs $12.99 and Ugly's Electrical References $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.4 for Electrician's Helper against 4.4 for Ugly's Electrical References. That said, the two scores are not equally well evidenced: Ugly's Electrical References has 1.5K ratings behind it against 13, so its average is the more settled of the two. Written reviews split almost evenly too, at 48% and 47% positive.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. Both last shipped on October 29, 2026.

Scorecard3 real differences · 8 level
Electrician's Helper versus Ugly's Electrical References: the parameters behind the verdict, then further details
ParameterElectrician's HelperUgly's Electrical References
Price$12.99$12.99
Rating4.4 (13 ratings) — better4.4 (1.5K ratings)
Positive reviews47.8% of reviews — better47.1% of reviews
Number of ratings131.5K — better
Update frequencyEvery 3 monthsEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank—#6 — better
DevicesiPhoneiPhone, iPad — better
Requires iOS26.017 — better
Further details — not scored
Size29 MB63 MB
Age rating4+9+
DeveloperSam VirgilloInformed Publishing

Customer experience

Electrician's Helper

All ratings13 ratings
Positive76.9%
Neutral15.4%
Negative7.7%
Written reviews46 reviews
Positive47.8%
Neutral10.9%
Negative41.3%

Ugly's Electrical References

All ratings1,495 ratings
Positive84.9%
Neutral5.7%
Negative9.4%
Written reviews172 reviews
Positive47.1%
Neutral16.9%
Negative36.0%

Bugs and requests

Electrician's Helper

Not enough reviews yet to summarise bugs or requests.

Ugly's Electrical References

Reported bugs

4 issues
  • Videos not playing
  • Bookmarks not working correctly
  • Navigation issues causing app crashes
  • Incorrect calculation results

Requested features

5 requests
  • Zoom functionality
  • Better search capabilities
  • Spanish language support
  • Offline access to full content
  • Improved bookmarking system

In-app purchases

None

Electrician's Helper

No in-app purchases

None

Ugly's Electrical References

No in-app purchases

Questions

Is Electrician's Helper free?
Electrician's Helper costs $12.99, with no in-app purchases.
Is Ugly's Electrical References free?
Ugly's Electrical References costs $12.99, with no in-app purchases.
Which has better reviews, Electrician's Helper or Ugly's Electrical References?
Electrician's Helper is rated higher. Electrician's Helper averages 4.4 out of 5 from 13 ratings, while Ugly's Electrical References averages 4.4 from 1.5K ratings.
Do Electrician's Helper or Ugly's Electrical References have ads?
Neither Electrician's Helper nor Ugly's Electrical References shows ads.
Which is updated more often, Electrician's Helper or Ugly's Electrical References?
Electrician's Helper ships an update every 3 months, and Ugly's Electrical References every 3 months. Most recently, Electrician's Helper was updated on October 29, 2026 and Ugly's Electrical References on October 29, 2026.

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