EE ToolKit PRO 15.1.0 - App Store

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About EE ToolKit PRO

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...

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

Version History Ω Smaller fixes and optimisations 15.1.0 Mar 7 Ω Fresh look, improved user interface! • This last update brings a complete view navigation redesign with modernized view handling, fully optimized for iOS 26. Ω Audio Function Generator • new Balance control! Easily adjust the left/right stereo output for precise sound shaping. • Several improvements to musical notes playback Ω smaller fixes and improvements 15.0.0 11/11/2025 Ω updates for iOS 26 Ω Audio Function Generator • new Balance control! Easily adjust the left/right stereo output for precise sound shaping. • Several improvements to musical notes playback Ω smaller fixes and improvements 14.1.0 09/20/2025 Ω New Zoom Feature • added zooming support globally for all schematics, images, and formulas. • Now you can easily enlarge and examine details more closely. • Enjoy improved visibility and a more flexible experience. Ω New interactive graphs with cursor: • Low-pass, high-pass filter (Cut-Off frequency tool) • Charging and discharging of a capacitor Ω New Tools (Capacitor Charge Tools) • Inrush Current Limiter using NTC including interactive graph and cursor • Capacitor Quiescent Current calculator including interactive graph and cursor Ω New custom database for datasheets • easily manage your project datasheets with the new custom database feature! • access and store important project information directly from the new menu entry of the sidebar • keep everything organized and readily available whenever you need it Got questions or suggestions? Reach out to us at [email protected]. If you're enjoying the app, please take a moment to leave a review — it makes a big difference! 14.0.0 04/19/2025 Ω IC Logic Guide (Logic Gates Tool): overview of the most common process technologies / device families Ω Additions to the SBC Tools section Ω User Interface optimisations and improvements Ω Smaller fixes and improvements all over the App 13.7.0 02/27/2025 Ω Audio Function Generator • significant rewrite of the function generator core functions, including an improved Audio Engine, enhanced power state management and many more core improvements. • improved Tap-To-Save feature for all page. • various UI cleanups have been implemented. Ω Other • Switches Tool improvements • User Interface optimisations • Fixes and improvements all over the App 13.6.0 11/05/2024 Ω New Tool about the Kirchhoff circuit laws (Basic Tools) • Explains the two fundamental and related Kirchhoff's laws, the junction rule and the loop rule using an example circuit. Ω Audio Scope • better arrangement of the scope window and the control elements • option to increase the size of the FFT frequency label Ω Audio Function Generator • Noise Engine optimisations Ω Other • Positive + Negative Voltage Regulator Tool improvements (nearby results) • Fixes and improvements all over the App 13.5.0 06/29/2024 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 [email protected]. 13.4.0 02/24/2024 Ω New Tools: • Basic Tools: two more T pad and two more Pi Pad tools. Adding symmetric T/Pi pad circuits and additional T/Pi pads, which calculate the return loss and the attenuation based on the values of the input resistors and the impedance of the system. • Frequency Tools: new Fourier series tool. Illustrates how the Fourier expansion works (the number of harmonics can be set as desired within the range of 0 - 50). Ω Audio Function Generator: • Scope View optimisations (moving the waveforms, calculating the cycle duration) • BPM feature optimisations (adding fine-tuning and slider) • Audio Engine optimisations for all non-sine signals • Improved visualisation of the phase view popover • Variable sweep time calculation fix Ω Added option to copy numbers from calculated fields Ω Better readability of the control elements in Dark Mode Ω Fixed the diagram of the center tapped transformer rectifier (rectifier tools) Ω Fixes and improvements all over the App If you have any questions or suggestions, please feel free to email us at [email protected]. 13.3.0 11/01/2023 Ω Audio Scope: • major re-design of the controls and the FFT mode. In FFT mode, the frequency of the signal with the highest amplitude is now displayed. Ω Audio Function Generator: • now supporting 3x16 frequency presets, all fully customisable. Use the arrow buttons to switch between them or just slide the controls. • new setting to change the frequency sliders step size (0.01 – 100). 13.2.0 06/14/2023 Audio Scope FFT mode bugfix 13.1.1 05/18/2023 New Tools: Ω TL431 tool about the popular three-terminal adjustable shunt regulator Ω Full wave rectifier with center tab Improvements: Ω Audio Scope: improved FFT mode (more scaling options, higher accuracy) Ω Zener Diode Tool: additional input for the load current Fixes: Ω 7-segment LED Tool display bugfix 13.1.0 05/13/2023 Ω Fixed loading issue of the 7400 tool 13.0.1 03/06/2023 New Tools: Ω Frequency Tools: new tool for calculating the load capacitors of a crystal oscillator circuit Ω 555 Tools: example of a power on delay circuit using the 555 Timer IC Ω Capacitor Tools: new tool for demonstrating charging of a capacitor using a constant current source Extended Settings: Ω new global setting for preferred E-Series and tolerance of components 13.0.0 02/23/2023 Ω Function Generator • Frequency Sweep: added new sweep option. You can now choose between fixed and variable frequency sweeps. A custom sweep step size (Hz) and a custom sweep step duration (s) can be freely selected. This gives you a whole new way to customise your frequency sweeps! • repeated Play/Pause caused R+L signals going out of phase in some cases. This is now fixed. • change popup styles Ω SBC Tools • added new section for Espressif Systems modules and boards • updated datasets of all the other SBC Tools Ω PCB Trace Width Tools • added option to enter a custom ρ (Rho) value Ω Smaller fixes and improvements all over the App 12.7.0 10/29/2022 Ω bugfixes and improvements 12.6.1 08/13/2022 Ω New Tools: • Center Frequency Tool for calculating the center frequency and Q-factor of a bandpass or notch filter • LED delay circuit using an RC circuit and a NPN transistor Ω Function Generator: • Dual-Tone: Fixing distortions when changing frequency during playback. Fixing an issue with the phase value not being applied when restarting or when changing tabs • Music Notes: added play/pause button to the music notes view Ω Smaller fixes and improvements all over the App 12.6.0 06/15/2022 Ω bugfixes and improvements 12.5.2 01/06/2022 Ω The EE ToolKit now also runs on Mac computers with Apple silicon 12.5.1 12/18/2021 Ω Function Generator: • several usability optimisations and improvements • fixing an issue with frequency input range checks • fix for volume change events not working anymore with iOS 15 • optimisations for the preset settings popover (first Tab) Ω support for iPad mini 6 Ω bugfix for the PCB Trace Width tool Ω Smaller fixes and improvements all over the App 12.5.0 12/04/2021 Ω New Tools: • BCD to 7-Segment using 74HC4511 (LED Tools) • LED dot/bar application using LM3914 (LED Tools) • Bit to dB tool for converting Bit depth to Decibels (Decibel Tools) Ω Function Generator: • new Fine-tune popover for fine-tuning frequency and amplitude • new system volume popover • fixed memory leak in the Sweep repeat implementation • repeat button in the Sweep tab now has 3 functions: off, repeat, siren-mode • refactored Master Volume control • added fine-tuning option to the musical notes section Ω Tools which use ICs in the example schematic have a link to the PDF datasheet of that respective IC now accessible via a sidebar link Ω Corrected swapped Vin and RL description in the loaded voltage divider tool Ω Fixed a bug in the Diodes tool Ω Corrected formula for the PCB Trace Width tools Ω Smaller fixes and improvements all over the App 12.4.0 08/28/2021 The brand-new EE ToolKit is here! Happy to present great new tools, great improvements and handy new feature additions. Ω New Tools: • Comparator tools (inverting, non-inverting). Easy to understand and very useful for experimenting with OpAmp comparator circuits. With comprehensive additional explanations and illustrations. Available via the OpAmp Circuit Tools. • Schmitt-Trigger tools / Comparator with Hysteresis (inverting, non-inverting). Easy to understand and very useful for experimenting and learning about comparator circuits with hysteresis. Additional text explaining how comparators can be extended to support hysteresis and thus two different threshold levels. Available via the OpAmp Circuit Tools. • Inrush current calculator for Load Switches (using the TPS2292x from Texas Instruments as an example). This is part of the Capacitor Charge Tools. Ω Notes: from this version onwards, you can save own drawings plus text notes for each tool individually. An overview of all stored notes and drawings is provided via the side menu on the main page. Ω Zooming on info pages on iPads is working much smoother now Ω Frequency Pitch Detector is now fully unlocked also in the free version Ω Smaller fixes and improvements all over the App 12.3.0 02/13/2021 Ω bugfixes and improvements 12.2.2 10/22/2020 Ω updates for iOS 14 Ω new Notes popover. Now you can make notes for each tool individually. Via the home screen you can get an overview of all of your notes. 12.2.1 09/19/2020 Ω Component Tools: • added new tool for the 4000 IC Series (consists of 127 different ICs) • improved search function of the 7400 tool • fixed datasheets of Diodes tool not loading issue Ω Single Board Computer Tools: • added 6 more Orange Pi boards (Orange Pi 4B, Orange Pi 4, Orange Pi Zero LTS, Orange Pi 3, Orange Pi 3g-Iot-B, Orange Pi 3g-Iot-A) • added Teensy Boards • fixed page size issue for iOS devices without a home button • fixed image invert issue in SBC tools and Info pages Ω Audio Function Generator: • support for AirPlay 2 with multi-room • new “AUTO” button in the oscilloscope view. • the Min/Max frequency slider values and the max sweep slider value are now changed to buttons that open a popup window for immediate means to enter a new value. Browsing to the settings page to change these values is no longer needed. • musical notes popover has been improved. The window size and button size are now as large as possible for each respective iOS device. • added settings option to allow mixing of audio with external sources. Please Note: for streaming audio over AirPlay 2, this option must be disabled. • fixed oscilloscope issue when frequency slider is set to logarithmic. • fixed a phase issue in the Dual Function Generator. When changing frequencies, the phase went out of sync in some cases. • timed playback fix in the Dual Tone Generator• sweep counter resets to the exact start value when completed Many other optimizations and improvements under the hood to make the App more future proof for upcoming iOS versions, screen size changes, etc. 12.2.0 08/25/2020

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Previous Versions

Here you can find the changelog of EE ToolKit PRO since it was posted on our website on 2016-09-27 22:45:09. The latest version is 15.1.0 and it was updated on 2026-06-23 06:05:07. See below the changes in each version.

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