This is the brand-new Electronics Engineering ToolKit! The HIGHLY RATED and RECOMMENDED productivity app.

Users say it is the BEST and MOST PRACTICAL EE ToolKit 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 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.

The App gets CONSTANT and POWERFUL improvements!

!!! This is a UNIVERSAL App - for iPhone and iPad !!! - with In-App upgrade to PRO. If you don't like In-App purchases, you can also download the PRO version (red icon with PRO text) which is full PRO from the beginning without any In-App purchase.


“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.

Ω more than 150 electronic applications
Ω amazingly great multi-functional keyboard
Ω color code picker tools
Ω audio scope and a frequency pitch detector
Ω favorites page
Ω of course with a 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 simple and quick unit conversion within the single calculators
Ω fast on-the-fly conversions and calculations
Ω real-time circuit simulations
Ω support for preferred E series, sliders and min/max calculations
Ω auto-save of all entries over several sessions
Ω and many many more

What’s New

Version 9.1.1

In the previous version of the EE ToolKit some labels were presented in the wrong order. This new release fixes the issue.

Ratings and Reviews

4.6 out of 5
232 Ratings
232 Ratings
Ferrousallotrope ,

One of the best apps

I've had an iPhone for years and have never spent money on an app, but I couldn't go without this one. One of the best apps I've ever come across and is a must-have for anyone involved in any type of engineering, at any level.

Jparisse ,

Indispensable Companion

EE Toolkit is the reason I own an iPad. This app is the best tool next to a DVM! Everything one needs to know or forgot from school is right at one’s fingertips speeding up any electronic endeavor. This is a must have application for any creative individual in the field of electronics.

M.E. 4 Life ,


Complete and centralized source for all things electronic. From basic DC operations to advanced data sheet references, this app has it all. Continually improving and a must have for anyone even remotely interested in the field. Great source of information and references!


Thomas Gruber
259.6 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, German

Age Rating
Rated 4+
© Thomas Gruber
In-App Purchases
  1. Complete EE ToolKit Pro Upgrade $7.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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