EE ToolKit PRO 4+

Electronics Engineering

Thomas Gruber

Designed for iPad

    • 4.9 • 243 Ratings
    • $8.99



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.


“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.

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

What’s New

Version 13.4.0

Ω Audio Function Generator:
• Redesigned Fine-Tune popover!
• change the tone amplitude and the system volume independently
• change the volume in % or in dB
• custom configuration of the volume step size
• custom configuration of the frequency step size
• Several user interface changes and improvements

Ω New temperature sensor tool (“Nonlinear R” tools)
Ω Audio Scope improvements (FFT label)

If you have any questions or suggestions, please feel free to email us at

Ratings and Reviews

4.9 out of 5
243 Ratings

243 Ratings

Jamesw2965 ,

Awesome and Informative app

I’m getting back into my electronics. I’m finding this app to be very informative and helpful. One of the things that has impressed me is that the app designer has added information on various electronic products such as the Raspberry Pi and Arduino. What makes this so impressive is that he as added every bit of information about the product you could want. And it he does the same thing for both the electronic components and circuits. This app is bring me back to my school days when I was learning all this. Awesome app.



As a fairly novice ham radio operator and electronics tinkerer, this app has been absolutely indispensable to me. It has been a great learning tool.

If you are wondering if maybe it is too advanced for you, I thought the same. There are still many functions that I don’t understand (yet). But, as I progress with my understanding of electronics more and more of the functions become useful.

The Function generator alone is worth the money. I use it all the time to generate Lissajous patterns on my oscilloscope. Also useful for testing cross overs on speakers.

The resistor color band calculator is excellent as are the series and parallel component calcs.

Looking forward to future updates, and to gaining a better understanding of the other functions.

Brandyn G ,

This is not geared towards the professional

This isn’t a bad app, overall it has a lot of helpful information, but the info is more geared towards amateurs/enthusiasts than actual engineers.

I would recommend updating the UI to enhance navigation of the app. For example, implementing the function of swiping right from the left of the screen to go back a page rather than only being able to press the ‘X’ button would improve user experience.

App Privacy

The developer, Thomas Gruber, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

More By This Developer

EE ToolKit
Audio Function Generator
MultiTone Generator
Resistor ToolKit, Color Codes
Audio Function Generator PRO
MultiTone Generator PRO

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