---
title: "Electronic Toolbox Pro - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "The *** ORIGINAL *** Electronic Toolbox Pro App "The best and most complete Electronics App on the App Store" for Professionals, Hobbyists, Makers, HAMs and Students right at your fingertips!  Best of"
---

# Electronic Toolbox Pro — United States
> Electronics Engineering

![Electronic Toolbox Pro App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple112/v4/bb/e8/e0/bbe8e00e-18b3-565e-2cbb-fc78a26cb4be/AppIcon-0-0-1x_U007emarketing-0-0-0-7-0-0-sRGB-0-0-0-GLES2_U002c0-512MB-85-220-0-0.png/434x0w.png)

**Developer:** [Marcus Roskosch](https://apptail.io/developer/marcus-roskosch-Kac)
**Category:** Productivity
**Rating:** 4.7/5 (245 ratings)
**Price:** Free
**Bundle ID:** de.roskosch.ElectronicTb
**Store:** Apple App Store
**Country:** United States
**Version:** 14.5.01 (released 2022-09-13)
**Original Release:** 2009-11-20
**Languages:** English, French, German, Italian, Chinese, Spanish

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id339158729)
**AppTail Page:** [https://apptail.io/app/electronic-toolbox-pro-Cr/united-states](https://apptail.io/app/electronic-toolbox-pro-Cr/united-states)

## Electronic Toolbox Pro Description
The *** ORIGINAL *** Electronic Toolbox Pro App
"The best and most complete Electronics App on the App Store" for Professionals, Hobbyists, Makers, HAMs and Students right at your fingertips!

Best of all: Continuously improved since 2009 - FOR FREE - NO IN APP PURCHASE - NO FAKE REVIEWS!

What users wrote about this app:

Well worth the money *****
I researched all EE apps before buying this one and I have to say that this one is the best by far. The developer is very accommodating to requests and suggestions and provides updates frequently. Very, very happy with this app.

Simply brilliant *****
I don't normally review apps but I was so impressed with this one I felt I had to make a brief comment. Buy it, I promise you won't be disappointed. 

Supports iOS 14 back to iOS 11 and all available Apple iPhone and iPad models.

See the online Manual at 

Feature Highlights:
■ Circuit Editor
■ Most comprehensive and complete Electronics app available
■ Designed for Novices as well as Experts
■ Numerous individual tools from "A" like ASCII Table to "Z" like Zener Diode calculation. If something is missing, just let me know
■ Provides wide variety of simple and complex tools, such as the resistor color code conversion to the PCB Trace width tools
■ Various calculation tools available, such as the NE555 circuit calculation and the passive cooling calculator
■ Includes reference tools with millions of component specs for ICs, Transistors, FETs, Controllers with parametric searches, pinout and cross reference information, and complete datasheets
■ Provides information about Batteries, Drill sizes, Hybrid Amplifiers, Socket pinouts, package sizes and much more
■ Includes conversion tools, such as the Unit conversion tool, the HEX/Decimal/Float Tool, Frequency and AWG / SWG tools
■ Parametric search for Components with certain specs and cross references
■ Global search for terms or components across all tools  
■ Customizable arrangement of tools for quick and easy access
■ Includes a scientific desktop calculator, a frequency generator, and an oscilloscope
■ Comprehensive reference glossary (english only)
■ Content can be updated "over-the-air" and amended quickly and easily
■ Store diagrams, documents, and specs of a project
■ iCloud support
■ No ads or in-app purchases
■ Can be used without Internet access
■ Special keyboard available for quicker entry of SI units
■ And much more...

Now also includes reference tools for major boards like RaspBerry Pi, Arduino, BeagleBone, TI-Launchpad, Nano Pi, Orange Pi, Banana Pi, Odroid, Cubieboard and SparkFun!

For further information about this App, just have a look at my website: ■ electronic-toolbox.com ■ or just send me an E-mail.

The new Version of the app has just been released and as always, this update is FOR FREE to all users of Electronic Toolbox. 

At this point, many thanks for the ideas and suggestions I have received from the huge user community. You helped me to keep on improving my app with every new update. 

This App will continue to live and grow over the time. So I still look forward to all additional ideas, suggestions or even criticism so that I can continuously improve my App.

Best regards,

Marcus

Read more on : 

## Electronic Toolbox Pro Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/41/22/98/41229813-89d3-ea76-7ed6-c552eb6fa0e6/pr_source.jpg/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/26/3b/80/263b8017-f766-3cb3-b628-16d08ee70556/pr_source.jpg/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/e3/33/dc/e333dcd8-4916-288e-c5fe-a01e22b38705/pr_source.jpg/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/06/ae/66/06ae66dc-3eef-e693-456b-58fc31f135b6/pr_source.jpg/1242x2688.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/39/cd/1b/39cd1bd3-5443-1702-ca05-ffb2431de77e/pr_source.jpg/1242x2688.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/5a/3e/d4/5a3ed4e1-f536-6d47-1d8c-0bd63ad81c3f/pr_source.png/1242x2688.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/d0/c4/ac/d0c4ace0-2dd7-434d-238a-a8a9b8af0059/pr_source.png/1242x2688.png)
- [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/74/90/d6/7490d615-7dcf-b7ad-fd0a-c08c86b7ad4f/pr_source.png/1242x2688.png)
- [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/5a/20/23/5a20235e-4cce-b268-8d24-733cdbd2e283/pr_source.png/1242x2688.png)

## Electronic Toolbox Pro Rating Breakdown in United States
- 5 stars: 221 (90%)
- 4 stars: 9 (4%)
- 3 stars: 2 (1%)
- 2 stars: 1 (0%)
- 1 stars: 12 (5%)

## Electronic Toolbox Pro Reviews in United States

### ***** "Very useful"
I use this almost every day while revising circuits and figuring out suitable component substitutions
-- si du si, 2024-12-04

### ***** "Electronic toolbox"
Work on my iPad better with mouse and key pad

Thanks
Dave
-- Digitdav, 2024-10-12

### ***** "Nothing like it"
I don’t think anyone has a better app.
Truly amazing!
-- Alary, 2024-03-27

### ***** "Better Than Advertised!"
I bought this app several years ago and have used it off and on. Each time I’ve launched it I was informed that the app had been updated—which of course was a pleasant occurrence. The information contained therein has always been accurate and, while it don’t use it everyday, I have no plans to ever “not have it on my phone”. I recommend this app to anyone considering it.
-- Hoping4solutions, 2023-11-09

### ***** "Awesome app"
Helped me out many times. Hard to remember all aspects of electrical engineering and this app is ready with information.
-- AvidLover, 2023-10-17

### ****- "Calc: equation dsappears"
Hoping for an update. The equation still vanishes after the answer appears on the right side of the screen. A simple 37+63=100 but, the 37+63 disappears.
-- gorrwarrior, 2023-09-08

### ***** "Great Tool"
This app is amazing for electronics. So many resources and features stuffed in this thing.
-- Rgmoirgu, 2023-07-08

### ***** "Electronic TB"
Great App for anyone interested in electronics.
-- head5069, 2023-06-11

### ***** "Best electrical app out there!"
Ive had this app for about a month or so. What I originally got this app for was drawing out schematic just basic stuff but this app has so much information and knowledge behind it. I have only begun to scratch the surface on its capabilities. I would say I’m a novice to mid level when it comes to electronics more of a hobbyist but this app has pushed me to learn more outside of my day to day applications. This is well worth the money so many good tools and information.
-- A. Christiansen, 2023-05-22

### *---- "Non-functional application"
The circuit editor is non-functional with touch input, and the app is virtually useless on the iPhone. I fought $7 of digital garbage. 

No auto save, you just lose work, whole files disappear. App constantly crashes.
-- LEtrys20, 2023-04-20

### ***** "What used to be in several books or desk items."
Very handy,  I print saved page images for reference where iPhone is not safe at hand.  Great fast reference to specific items

I may have suggestions but not for now.  Thanks for efforts
-- Tonyboy456, 2023-03-18

### ***** "The most complete APP for electronics"
This is the best App you will find for electronics and general electrical data. The creator keeps it updated and continues supporting it. It just keeps improving and growing. Extremely devoted to making it better and better. I have a lot of apps where the builder makes it and moves on leaving it to be static never getting any better. I have had this one through 4 iPhones and again just keeps getting better. 
Thank you!!!
-- sparky6619, 2023-03-15

### ***** "Reference goldmine"
Engineering reference materials is a classic app domain for pocket oracles, and some of them have become quite polished in very focussed topic areas. What makes this app so valuable to me is that I need not remember which one of several apps holds the golden ticket for the task at hand. The cherry on top is that said convenience doesn’t require diluting expectations as to coverage or sophistication. The only advice  is that time spent perusing the embarrassment of riches will be well rewarded, and there is always something else to be explored. I don’t know an engineer who would consider this a bug, but rather a feature.
-- Fulton K. Grimm, 2023-02-26

### ***** "The Test of Time"
I downloaded this app as electronics student in 2010!  Thirteen years later it is still my first resource for anything electronics, and the continued updates and support make the app far more valuable than the price point.  Marcus has created the Wolfram Alpha of board-level electronics!
-- Clemtownkernel, 2023-01-26

### ***** "Muy útil"
Es una herramienta muy útil para los que trabajamos con electrónica, a la hora de ubicar detalles de un componente o fórmula allí esta para ayudarnos.
Felicitaciones
-- Colmenarezr2011, 2023-01-24

### ***** "Excellent!"
Very useful and well-written app for students, hobbyists, or professionals.
-- David27529, 2023-01-22

### ***** "The number one app!"
This is the first app I install on a new phone. I’ve been using this app for many years and it’s one of the only reasons I keep a smart phone.
-- KB8RWX, 2023-01-17

### ***** "Love the App"
This is a great App I use it at the job site and with my hobbies.
-- Paul K9LH, 2023-01-02

### ***** "Electronics Toolbox"
An excellent quick reference for field work or in classroom calculations. Repairing something or designing gadgets for fun from miscellaneous parts can be addictive when the answers are at your fingertips. The RF App is also handy when designing wireless antennas for exact frequencies.
-- Extra Innings, 2022-12-29

### ***** "Work"
I use this about every day. This is the one that everyone should be using
-- dking1003, 2022-12-23

[View all Electronic Toolbox Pro reviews and detailed analytics on AppTail](https://apptail.io/account/signup?utm_campaign=ai-crawl&utm_content=reviews)


## Electronic Toolbox Pro Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Paid | Lebanon | Productivity | #26 |
| Top Paid | Greece | Productivity | #26 |
| Top Paid | Ecuador | Productivity | #40 |
| Top Paid | Algeria | Productivity | #42 |
| Top Paid | Austria | Productivity | #43 |
| Top Paid | Kuwait | Productivity | #43 |
| Top Paid | Belgium | Productivity | #44 |
| Top Paid | Dominican Republic | Productivity | #47 |
| Top Paid | Argentina | Productivity | #56 |
| Top Paid | Denmark | Productivity | #56 |
| Top Paid | Chile | Productivity | #57 |
| Top Paid | Pakistan | Productivity | #59 |
| Top Paid | Switzerland | Productivity | #60 |
| Top Paid | Romania | Productivity | #63 |
| Top Paid | Spain | Productivity | #64 |
| Top Paid | Finland | Productivity | #65 |
| Top Paid | Mexico | Productivity | #67 |
| Top Paid | Portugal | Productivity | #67 |
| Top Paid | Italy | Productivity | #68 |
| Top Paid | Vietnam | Productivity | #70 |
| Top Paid | South Africa | Productivity | #71 |
| Top Paid | Nigeria | Productivity | #74 |
| Top Paid | Netherlands | Productivity | #74 |
| Top Paid | Norway | Productivity | #75 |
| Top Paid | Ireland | Productivity | #79 |
| Top Paid | Colombia | Productivity | #80 |
| Top Paid | France | Productivity | #83 |
| Top Paid | Hungary | Productivity | #87 |
| Top Paid | Azerbaijan | Productivity | #89 |
| Top Paid | Türkiye | Productivity | #89 |
| Top Paid | Sweden | Productivity | #90 |
| Top Paid | Thailand | Productivity | #90 |
| Top Paid | Peru | Productivity | #91 |
| Top Paid | United Arab Emirates | Productivity | #95 |
| Top Paid | Israel | Productivity | #99 |
| Top Paid | Egypt | Productivity | #105 |
| Top Paid | Saudi Arabia | Productivity | #106 |
| Top Paid | Czechia | Productivity | #108 |
| Top Paid | Brazil | Productivity | #110 |
| Top Paid | Malaysia | Productivity | #111 |
| Top Paid | New Zealand | Productivity | #114 |
| Top Paid | Poland | Productivity | #123 |
| Top Paid | Singapore | Productivity | #125 |
| Top Paid | Indonesia | Productivity | #126 |
| Top Paid | Australia | Productivity | #133 |
| Top Paid | Germany | Productivity | #150 |
| Top Paid | Canada | Productivity | #154 |
| Top Paid | Hong Kong SAR China | Productivity | #154 |
| Top Paid | South Korea | Productivity | #160 |
| Top Paid | United States | Productivity | #167 |
| Top Paid | Japan | Productivity | #167 |
| Top Paid | United Kingdom | Productivity | #172 |
| Top Paid | Philippines | Productivity | #172 |
| Top Paid | India | Productivity | #179 |
| Top Paid | Taiwan | Productivity | #184 |
| Top Paid | Ukraine | Productivity | #209 |
| Top Paid | Kazakhstan | Productivity | #235 |
| Top Paid | China | Productivity | #274 |
| Top Paid | Lebanon | Overall | #323 |
| Top Paid | Greece | Overall | #328 |
| Top Paid | Algeria | Overall | #474 |

## Electronic Toolbox Pro Discovered Keywords
- electronic toolbox pro
- electronics toolkit
- electrical toolkit
- electronics engineer helper

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## Electronic Toolbox Pro Available In
- [United States](https://apptail.io/app/electronic-toolbox-pro-Cr/united-states)
- [Germany](https://apptail.io/app/electronic-toolbox-pro-Cr/germany)
- [United Kingdom](https://apptail.io/app/electronic-toolbox-pro-Cr/united-kingdom)
- [Netherlands](https://apptail.io/app/electronic-toolbox-pro-Cr/netherlands)
- [Canada](https://apptail.io/app/electronic-toolbox-pro-Cr/canada)
- [Switzerland](https://apptail.io/app/electronic-toolbox-pro-Cr/switzerland)
- [Italy](https://apptail.io/app/electronic-toolbox-pro-Cr/italy)
- [Australia](https://apptail.io/app/electronic-toolbox-pro-Cr/australia)
- [France](https://apptail.io/app/electronic-toolbox-pro-Cr/france)
- [Spain](https://apptail.io/app/electronic-toolbox-pro-Cr/spain)
- [Austria](https://apptail.io/app/electronic-toolbox-pro-Cr/austria)
- [Brazil](https://apptail.io/app/electronic-toolbox-pro-Cr/brazil)
- [Denmark](https://apptail.io/app/electronic-toolbox-pro-Cr/denmark)
- [Belgium](https://apptail.io/app/electronic-toolbox-pro-Cr/belgium)
- [Mexico](https://apptail.io/app/electronic-toolbox-pro-Cr/mexico)
- [Thailand](https://apptail.io/app/electronic-toolbox-pro-Cr/thailand)
- [Türkiye](https://apptail.io/app/electronic-toolbox-pro-Cr/turkey)
- [China](https://apptail.io/app/electronic-toolbox-pro-Cr/china)
- [Norway](https://apptail.io/app/electronic-toolbox-pro-Cr/norway)
- [India](https://apptail.io/app/electronic-toolbox-pro-Cr/india)
- [Chile](https://apptail.io/app/electronic-toolbox-pro-Cr/chile)
- [New Zealand](https://apptail.io/app/electronic-toolbox-pro-Cr/new-zealand)
- [Japan](https://apptail.io/app/electronic-toolbox-pro-Cr/japan)
- [Vietnam](https://apptail.io/app/electronic-toolbox-pro-Cr/vietnam)
- [Greece](https://apptail.io/app/electronic-toolbox-pro-Cr/greece)
- [South Africa](https://apptail.io/app/electronic-toolbox-pro-Cr/south-africa)
- [Argentina](https://apptail.io/app/electronic-toolbox-pro-Cr/argentina)
- [Saudi Arabia](https://apptail.io/app/electronic-toolbox-pro-Cr/saudi-arabia)
- [Taiwan](https://apptail.io/app/electronic-toolbox-pro-Cr/taiwan)
- [Croatia](https://apptail.io/app/electronic-toolbox-pro-Cr/croatia)
- [Portugal](https://apptail.io/app/electronic-toolbox-pro-Cr/portugal)
- [Romania](https://apptail.io/app/electronic-toolbox-pro-Cr/romania)
- [Luxembourg](https://apptail.io/app/electronic-toolbox-pro-Cr/luxembourg)
- [Sweden](https://apptail.io/app/electronic-toolbox-pro-Cr/sweden)
- [Singapore](https://apptail.io/app/electronic-toolbox-pro-Cr/singapore)
- [Lebanon](https://apptail.io/app/electronic-toolbox-pro-Cr/lebanon)
- [Ukraine](https://apptail.io/app/electronic-toolbox-pro-Cr/ukraine)
- [Philippines](https://apptail.io/app/electronic-toolbox-pro-Cr/philippines)
- [Indonesia](https://apptail.io/app/electronic-toolbox-pro-Cr/indonesia)
- [Cyprus](https://apptail.io/app/electronic-toolbox-pro-Cr/cyprus)
- [Malaysia](https://apptail.io/app/electronic-toolbox-pro-Cr/malaysia)
- [Peru](https://apptail.io/app/electronic-toolbox-pro-Cr/peru)
- [Slovakia](https://apptail.io/app/electronic-toolbox-pro-Cr/slovakia)
- [Poland](https://apptail.io/app/electronic-toolbox-pro-Cr/poland)
- [United Arab Emirates](https://apptail.io/app/electronic-toolbox-pro-Cr/united-arab-emirates)
- [Bahrain](https://apptail.io/app/electronic-toolbox-pro-Cr/bahrain)
- [Dominican Republic](https://apptail.io/app/electronic-toolbox-pro-Cr/dominican-republic)
- [Ecuador](https://apptail.io/app/electronic-toolbox-pro-Cr/ecuador)
- [Estonia](https://apptail.io/app/electronic-toolbox-pro-Cr/estonia)
- [Finland](https://apptail.io/app/electronic-toolbox-pro-Cr/finland)
- [Hungary](https://apptail.io/app/electronic-toolbox-pro-Cr/hungary)
- [Ireland](https://apptail.io/app/electronic-toolbox-pro-Cr/ireland)
- [Israel](https://apptail.io/app/electronic-toolbox-pro-Cr/israel)
- [Iceland](https://apptail.io/app/electronic-toolbox-pro-Cr/iceland)
- [South Korea](https://apptail.io/app/electronic-toolbox-pro-Cr/south-korea)
- [Lithuania](https://apptail.io/app/electronic-toolbox-pro-Cr/lithuania)
- [Oman](https://apptail.io/app/electronic-toolbox-pro-Cr/oman)
- [Qatar](https://apptail.io/app/electronic-toolbox-pro-Cr/qatar)
- [North Macedonia](https://apptail.io/app/electronic-toolbox-pro-Cr/north-macedonia)
- [Madagascar](https://apptail.io/app/electronic-toolbox-pro-Cr/madagascar)
- [Azerbaijan](https://apptail.io/app/electronic-toolbox-pro-Cr/azerbaijan)
- [Latvia](https://apptail.io/app/electronic-toolbox-pro-Cr/latvia)
- [Kazakhstan](https://apptail.io/app/electronic-toolbox-pro-Cr/kazakhstan)
- [Pakistan](https://apptail.io/app/electronic-toolbox-pro-Cr/pakistan)
- [Kuwait](https://apptail.io/app/electronic-toolbox-pro-Cr/kuwait)
- [Jamaica](https://apptail.io/app/electronic-toolbox-pro-Cr/jamaica)
- [Armenia](https://apptail.io/app/electronic-toolbox-pro-Cr/armenia)
- [Hong Kong SAR China](https://apptail.io/app/electronic-toolbox-pro-Cr/hong-kong)
- [Ghana](https://apptail.io/app/electronic-toolbox-pro-Cr/ghana)
- [Egypt](https://apptail.io/app/electronic-toolbox-pro-Cr/egypt)
- [Algeria](https://apptail.io/app/electronic-toolbox-pro-Cr/algeria)
- [Slovenia](https://apptail.io/app/electronic-toolbox-pro-Cr/slovenia)
- [Czechia](https://apptail.io/app/electronic-toolbox-pro-Cr/czechia)
- [Colombia](https://apptail.io/app/electronic-toolbox-pro-Cr/colombia)
- [Tunisia](https://apptail.io/app/electronic-toolbox-pro-Cr/tunisia)
- [Belize](https://apptail.io/app/electronic-toolbox-pro-Cr/belize)
- [Brunei](https://apptail.io/app/electronic-toolbox-pro-Cr/brunei)
- [Bermuda](https://apptail.io/app/electronic-toolbox-pro-Cr/bermuda)
- [Bulgaria](https://apptail.io/app/electronic-toolbox-pro-Cr/bulgaria)
- [Uzbekistan](https://apptail.io/app/electronic-toolbox-pro-Cr/uzbekistan)
- [Nigeria](https://apptail.io/app/electronic-toolbox-pro-Cr/nigeria)
- [Malta](https://apptail.io/app/electronic-toolbox-pro-Cr/malta)

---

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