---
title: "RF-Toolbox Pro - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "Specialized on high frequency electronics for RF professionals, radio amateurs and students.  RF-Toolbox is based on the popular Electronic Toolbox by Marcus Roskosch.  This app contains some of the c"
---

# RF-Toolbox Pro — United States
> High frequency Tools

![RF-Toolbox Pro App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple112/v4/11/2b/2d/112b2d77-cc67-a9f5-a81d-b0d325e60b79/AppIcon-0-0-1x_U007emarketing-0-0-0-9-0-0-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:** 4.9/5 (22 ratings)
**Price:** Free
**Bundle ID:** de.roskosch.RFToolbox
**Store:** Apple App Store
**Country:** United States
**Version:** 14.5.01 (released 2022-09-12)
**Original Release:** 2013-01-20
**Languages:** Spanish, German, Chinese, French, English, Italian

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id593044099)
**AppTail Page:** [https://apptail.io/app/rf-toolbox-pro-XIN/united-states](https://apptail.io/app/rf-toolbox-pro-XIN/united-states)

## RF-Toolbox Pro Description
Specialized on high frequency electronics for RF professionals, radio amateurs and students.

RF-Toolbox is based on the popular Electronic Toolbox by Marcus Roskosch.

This app contains some of the common tools of Electronic Toolbox but contains a wide range of additional tools, specialized for high frequency electronics, RF professionals, radio amateurs and students.

Currently RF-Toolbox consists of more than 90 tools and like Electronic Toolbox, there are more to come over the time. 

Feature list:

■ PCB Trace Width (Internal and external Traces)
■ PCB Trace Resistance 
■ PCB Trace Impedance (various trace types e.g. Microstrip, embedded Microstrip, Symmetric and Asymetric Stripline, Wire Microchip, Wire Stripline, Edge Coupled Microstrip and Stripline)
PCB Crosstalk (Microstrip and Stripline)
■ LC L/T/Pi Match calculation
■ Coax Cable calculation (Standard and individual Types)
■ Amplifier and Attenuator cascade calculation
■ SWR / Reflection / Return loss conversion 
■ Power Divider (Branchline, Ratrace and Wilkinson)
■ Capacitor Plate calculation
■ RLC Parallel, Series and Circuit calculation 
■ Noise Figure conversion
■ Skin Depth calculation (various materials from Aluminum to Silver)
■ Butterworth Filter (also with plot of filter chart)
■ Chebyshev Filter (also with plot of filter chart)
■ R-C, L-C, R-L High/Low/Band-Pass Filter
■ RF Units conversion (quick conversion of frequently used units)
■ Air coil inductance calculation
■ Resistors, Capacitors, Inductors in Parallel / Series
And there is much more...
■ Aktive Filter calculation tool
■ Antenna calculation tool
■ Delta Star calculation
■ Cable length / ampacity tool
■ PTC / NTC Temperature Resistance conversion
■ AC Ohms law tool
■ Zener diode circuit calculation
■ Constant current source tool
■ ASCII Table
■ Desktop calculator
■ Resistor/Capacitor/Inductor combinations tool
■ 4-20mA conversion tool ■ Passive cooling calculator
■ Audio Oscilloscope

Please check out more screen shots on my website (WEBSITE Link on the left side).

If you have questions, please feel free to contact me by using the Support button here, inside the App or on my website.

Thank you! 

Marcus Roskosch

## RF-Toolbox Pro Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/cd/3d/f7/cd3df79a-8589-cd6e-b622-5b26d74a2d9e/pr_source.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/d2/d7/42/d2d742f8-f4dc-7917-3bf9-77f56de71378/pr_source.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/7f/50/ce/7f50cee6-200d-5ba7-ad1d-af9641fd2e1f/pr_source.png/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/0f/3d/07/0f3d077b-4d9f-b145-5dee-c12311f4f4d8/pr_source.png/1242x2688.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/1d/11/f5/1d11f54b-2e22-e476-2581-2bac3f4d24a5/pr_source.png/1242x2688.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/14/4f/59/144f598e-468f-8822-7eb9-4e572dea95bd/pr_source.png/1242x2688.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/53/17/a8/5317a8e3-e8eb-3559-ee21-6061b2528b5e/pr_source.png/1242x2688.png)
- [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/e9/49/54/e94954c6-dc1d-0204-9712-5aa66a13183e/pr_source.png/1242x2688.png)
- [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/b5/e1/b7/b5e1b7f5-b20f-537e-6aa6-77ecc24a7ca4/pr_source.png/1242x2688.png)
- [Screenshot 10](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/9c/49/a6/9c49a6dc-6bee-bd0d-9a35-8ffba704a73b/pr_source.png/1242x2688.png)

## RF-Toolbox Pro Rating Breakdown in United States
- 5 stars: 21 (95%)
- 4 stars: 0 (0%)
- 3 stars: 0 (0%)
- 2 stars: 1 (5%)
- 1 stars: 0 (0%)

## RF-Toolbox Pro Reviews in United States

### ***** "A most excellent App"
Mr. Roskosch’s ETB  Is A “Killer App”...
Professional, Intuitive Expansive And Kept Up To Date!
I Highly Recommend This App For All Good People...
73
KS4ML
-- zirconator, 2019-12-15

### ***** "Great app"
This is just a great app!
-- Parki69, 2018-11-08

### ***** "Very Handy"
This is just a fabulous app for anyone working with RF. Especially handy when designing equipment at the component level and almost everything you need is all in one app.
-- Butch101, 2018-11-08

### ***** "Electronics and RF Tools"
WOW....... After a 30 year break I decided to get back into Ham Radio and Electronics I stated in Boy scouts. Needless to say my math skills were never great and now pretty much gone, my military service took its toll. 

A few years ago I looked for this type of software but nothing like these were available, but tonight I found these two sets of tools and about hit the floor when I opened them, for me and others without an EE degree these tools include everything I need to not only troubleshoot equipment but now I think I’ll be able to build my own.

I cannot say enough good things about these, check them out you won’t be sorry. Now if someone could develop programming tools for ATMELs and PICs I’ll be in heaven.

Thank you for developing these awesome apps.

Jim
-- Avengerman14s, 2018-04-11

### ***** "Marcus Strikes Again"
Like the rest of his apps this is also great!
-- Bkt5w, 2017-12-23

### ***** "Incredible app!"
This app is a breath of fresh air!  Every time I&#039;m in the middle of a project &amp; I&#039;m stumped, this app comes to the rescue.  Unlike the ARRL handbook there is no wasted, high minded verbiage to sift through.  Answers come quickly!  Well thought out.  Love it
-- Skullcracka, 2017-01-20

### ***** "Second to none"
I&#039;m a lifetime electronics technician and can testify this is what gets you going in the right direction for most of your formula needs. I appreciate that the developer continues to support the app for well over a year since I bought it. Bugs squashed before I knew it was a problem.
-- Powerup777, 2016-12-01

### ***** "Fantastic general reference for electronics"
I am hamradio operator and I find this app to be a fantastic source for a host of thing for reference, circuit design, circuit simulation, etc.  It just keeps getting better.
-- Transmaster, 2016-05-23

### ***** "Already a good app"
After using the author&#039;s Electronic Tool Box and seeing how well supported it is, I had no hesitation downloading this app. Marcus has been very responsive to bugs and suggestions. Improvements and updates have been frequent and valuable.
-- KI0DN, 2015-09-24

### ***-- "Ok app"
It&#039;s an ok app. It&#039;s has quite a few options but can add a few features in some of them. Example: the RLC filter or series circuit. They can try to add the value of current and voltage drops on the RCL.
-- Realdc2, 2015-04-13

### ***** "One great and powerful app!"
This one app replaces many individual apps that used to clutter my phone. If you find it won&#039;t do what you need the way you need it, Marcus will listen to your suggestions.
-- KB8RWX, 2014-06-25

### ****- "Is it worth the cost?"
Yes. There are several missing features which for $9.99 should BE there, such as the transistors, BJT,FET,IC and more databases which ARE used in RF biasing and other circuits. The filter sections does not have a bandpass filter and the impedances are not set at 50 ohms, a common RF impedance.Having to spend another $6 to buy the RFpro to fill in the missing material should not happen, and I hope Marcus will consider a special offer to his customers and include the missing material in future upgrades. Otherwise and excellent and easy to use app. Kudos!
-- RFelectromania, 2014-01-31

### *---- "Unable to download data update"
Unable to download data update. Always failed in the middle of downloading update.
-- DN5665.us, 2013-12-13

### ***** "rf toolbox"
EXCELLENT!!!
-- Nanofred, 2013-12-07

### ****- "RF Toolbox Pro"
Again, I find myself pleased with another great App from  Markus Roskosch. As this App is based on Toolbox Pro, you will find yourself instantly familiar in the use of the App. All of the tools needed are present along with many tools 
Found in Toolbox Pro.
-- Sky Nerd, 2013-09-28

### ***** "Very useful app"
Great RF stuff. Handy to have basic electronics items there too.
Another useful app from the best app updater out there!
Thanks!
-- Bigpietrobot1, 2013-02-27

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


## RF-Toolbox Pro Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Paid | Lebanon | Productivity | #175 |
| Top Paid | Greece | Productivity | #247 |
| Top Paid | Argentina | Productivity | #255 |
| Top Paid | Austria | Productivity | #274 |
| Top Paid | Taiwan | Productivity | #282 |
| Top Paid | Germany | Productivity | #290 |
| Top Paid | Finland | Productivity | #290 |
| Top Paid | Switzerland | Productivity | #290 |
| Top Paid | Chile | Productivity | #301 |
| Top Paid | Italy | Productivity | #303 |
| Top Paid | Kuwait | Productivity | #303 |
| Top Paid | Netherlands | Productivity | #303 |
| Top Paid | Spain | Productivity | #316 |
| Top Paid | Denmark | Productivity | #317 |
| Top Paid | France | Productivity | #317 |
| Top Paid | South Africa | Productivity | #318 |
| Top Paid | Pakistan | Productivity | #321 |
| Top Paid | Israel | Productivity | #322 |
| Top Paid | Belgium | Productivity | #322 |
| Top Paid | China | Productivity | #326 |
| Top Paid | Norway | Productivity | #329 |
| Top Paid | Poland | Productivity | #345 |
| Top Paid | Vietnam | Productivity | #345 |
| Top Paid | Dominican Republic | Productivity | #353 |
| Top Paid | Azerbaijan | Productivity | #357 |
| Top Paid | Türkiye | Productivity | #367 |
| Top Paid | Saudi Arabia | Productivity | #382 |
| Top Paid | Brazil | Productivity | #386 |
| Top Paid | Indonesia | Productivity | #391 |
| Top Paid | Australia | Productivity | #399 |
| Top Paid | Singapore | Productivity | #402 |
| Top Paid | Sweden | Productivity | #418 |
| Top Paid | Portugal | Productivity | #423 |
| Top Paid | Japan | Productivity | #442 |
| Top Paid | Mexico | Productivity | #442 |
| Top Paid | South Korea | Productivity | #445 |
| Top Paid | Thailand | Productivity | #456 |
| Top Paid | Egypt | Productivity | #467 |
| Top Paid | United Kingdom | Productivity | #468 |
| Top Paid | Czechia | Productivity | #477 |
| Top Paid | Romania | Productivity | #478 |
| Top Paid | New Zealand | Productivity | #486 |
| Top Paid | Peru | Productivity | #489 |

## RF-Toolbox Pro Discovered Keywords
- toolbox pro
- rf

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

---

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