Comparison

EE ToolKit PRO 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

EE ToolKit PRO

This comprehensive toolkit offers over 160 electronic applications, calculators, and reference sections for electronics engineers, students, and hobbyists. It includes features like a multi-functional keyboard, color code tools, audio scope, and circuit simulations, with ongoing improvements and updates.

Highlights
  • Over 160 electronic applications
  • Multi-functional keyboard
  • Color code and SMD code tools
  • Audio scope and frequency generator
  • Component reference section with datasheets
  • 555 Timer tools
  • PCB trace impedance calculators
  • Real-time circuit simulations
Features
Read full description

This is the brand-new Electronics Engineering ToolKit PRO! The HIGHLY RATED and RECOMMENDED productivity app. Users say it is the BEST and MOST PRACTICAL Electronics App in the whole iTunes App Store. From an electronics enthusiast with a master's degree in Electronics Engineering. This App is for engineers, students and hobbyists and anyone interested in Electronics Engineering. The App gets CONSTANT and POWERFUL improvements! !!! This is a UNIVERSAL App - for iPhone and iPad !!! 100% PRO from the beginning without any In-App purchase! The EE ToolKit PRO is the preferred Electronics App at schools and universities. It is available through the Volume Purchase Program with a discount for educational institutions. Many students, teachers and professors have downloaded the App and are using it during their studies and career. WHAT OTHER USERS ARE SAYING: “Awesome app, constant and powerful improvements” This app was worth every penny I paid for it back when I bought it years ago. Since then, I’ve regularly used it at work and found it to be an excellent, quick tool to use. The most impressive aspect of this app are the constant and VERY impressive updates! Massive feature additions and very easy to use interface! The list of capabilities this app has makes it an amazing value for truly anyone involved in electronics. “Latest version makes this an exceptional tool” The EE Toolkit was always a very useful tool, but with the additions in the latest version it is truly an exceptional tool. The author is extremely diligent in managing bugs and improving the tool. “A superb app highly recommended” Fantastic application. Very useful. Always updated. Good developer. Lots of great bonus tools. Just love it. "Incredible useful, worth the money" I have had this app for a while now. Originally as an Electrical Engineering student I didnt really use it but once I was out in the field it became my bible. I definitely recommend to any engineering students/professionals alike. I also recommend buying the Pro version because it is definitely worth it. FEATURES OF THE EE TOOLKIT: Ω more than 160 electronic applications Ω amazingly great multi-functional keyboard Ω huge selection of color code tools and SMD code tools Ω audio scope and a frequency pitch detector Ω favorites page only for the tools that you have marked as favorite Ω full-featured frequency generator Ω extra large component reference section (incl. 7400 Series, PIC family, etc.) with the option to open pdf datasheets live or by e.g. iBooks Ω 555 Timer Tools with the most important application examples Ω extensive collection of Single Board Computers (more than 120 different boards!!!) Ω PCB trace impedance tools for several different structures Ω simple and quick unit conversion within the single calculators Ω fast on-the-fly conversions and calculations Ω real-time circuit simulations of the example circuits Ω support for preferred E series, sliders and min/max calculations Ω auto-save of all entries over several sessions Ω file manager to save and load individual calculations Ω built-in access to your iCloud Ω formula search tool with quick links to the tool which uses the formula Ω and many many more

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

EE ToolKit PRO4 screens
Ugly's Electrical References4 screens

Verdict

The call

The clearest difference is review sentiment: EE ToolKit PRO at 90% against Ugly's Electrical References's 47%. EE ToolKit PRO also leads on rating (4.9 vs 4.4) and price ($9.99 vs $12.99). Ugly's Electrical References's advantage is chart position (#4 vs unranked) and ratings volume (1.5K vs 293). On update cadence, ads, in-app purchases and monetization model 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

EE ToolKit PRO costs $9.99 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

EE ToolKit PRO holds the better App Store score, 4.9 against 4.4. That said, the two scores are not equally well evidenced: Ugly's Electrical References has 1.5K ratings behind it against 293, so its average is the more settled of the two. Written reviews point the same way: 90% of EE ToolKit PRO's written reviews are positive against 47% of Ugly's Electrical References's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 13, 2026 and October 15, 2026 respectively.

Scorecard6 real differences · 5 level
EE ToolKit PRO versus Ugly's Electrical References: the parameters behind the verdict, then further details
ParameterEE ToolKit PROUgly's Electrical References
Price$9.99 — better$12.99
Rating4.9 (293 ratings) — better4.4 (1.5K ratings)
Positive reviews89.6% of reviews — better47.1% of reviews
Number of ratings2931.5K — better
Update frequencyEvery 3 monthsEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank—#4 — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better17
Further details — not scored
Size289 MB63 MB
Age rating4+9+
DeveloperThomas GruberInformed Publishing

Customer experience

EE ToolKit PRO

All ratings293 ratings
Positive98.0%
Neutral0.7%
Negative1.4%
Written reviews164 reviews
Positive89.6%
Neutral4.9%
Negative5.5%

Ugly's Electrical References

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

User reviews

EE ToolKit PRO

From 293 App Store ratings

What we love

  • 🚀 Top-notch tool
  • 👍 Extremely helpful
  • 🔥 Invaluable for electronics work
  • 💯 Excellent app
  • 🔍 Comprehensive reference

Room to improve

  • 🐛 Occasional crashes or bugs
  • 🔍 UI could be more intuitive
  • 📱 Some features not optimized for mobile
  • 🔢 Limited functionality for advanced users

Ugly's Electrical References

From 1.5K App Store ratings

What we love

  • 🚀 Quick reference
  • 👍 Helpful for apprentices and journeymen
  • 👍 Convenient to have on phone
  • 👍 Useful calculators
  • 👍 Great resource

Room to improve

  • 🐛 Videos/audio not working
  • 🐛 Bookmarking issues
  • 🐛 Glitchy navigation
  • 🐛 Difficult to find information
  • 🐛 Annoying review pop-up

Bugs and requests

EE ToolKit PRO

Reported bugs

3 issues
  • 7400 routine causes app to close
  • Resistor value calculation issues
  • Compatibility problems with newer iOS versions

Requested features

5 requests
  • Add support for vacuum tubes
  • Implement logarithmic frequency sweep
  • Include more component pinout information
  • Integrate a circuit builder/simulator
  • Add DB to RMS and peak-to-peak conversion

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

EE ToolKit PRO

No in-app purchases

None

Ugly's Electrical References

No in-app purchases

Questions

Is EE ToolKit PRO free?
EE ToolKit PRO costs $9.99, 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, EE ToolKit PRO or Ugly's Electrical References?
EE ToolKit PRO is rated higher. EE ToolKit PRO averages 4.9 out of 5 from 293 ratings, while Ugly's Electrical References averages 4.4 from 1.5K ratings.
Do EE ToolKit PRO or Ugly's Electrical References have ads?
Neither EE ToolKit PRO nor Ugly's Electrical References shows ads.
Which is updated more often, EE ToolKit PRO or Ugly's Electrical References?
EE ToolKit PRO ships an update every 3 months, and Ugly's Electrical References every 3 months. Most recently, EE ToolKit PRO was updated on October 13, 2026 and Ugly's Electrical References on October 15, 2026.

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