# RF-Toolbox Pro — user reviews > 45 indexed App Store user reviews of RF by Marcus Roskosch, rated 4.90/5 from 22 ratings. - Source: https://appshunter.io/ios/app/rf-toolbox-pro/id593044099/reviews - App overview in markdown: https://appshunter.io/ios/app/rf-toolbox-pro/id593044099.md - Rating breakdown: 5★ 21 · 4★ 0 · 3★ 0 · 2★ 1 · 1★ 0 ## Newest reviews (16 of 45) ### 5/5 — Great Application *2018-07-10* I've been using this application for years. Great application constantly evolving. Amazing value for money. Well done ! ### 5/5 — Electronics and RF Tools *2018-04-11* 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 ### 5/5 — Sehr gutes Programm *2018-02-10* Ein wirklich tolles Programm. Ich benutze es jetzt schon eine ganze Weile. Dabei hat es mir schon viele Dienste erwiesen. Sehr umfassend kann ich hiermit verschiedenste Schaltungen planen und vorbereiten. Auch die Mikrocontroller Datenbank ist gut ausgearbeitet. Seit langem eine der besten Elektronik Apps die ich gesehen habe. Kann sie wirklich nur jedem empfehlen der sich mit Elektronik beschäftigt. ### 5/5 — Marcus Strikes Again *2017-12-23* Like the rest of his apps this is also great! ### 5/5 — RF-Toolbox *2017-02-19* Gute App ### 5/5 — Incredible app! *2017-01-20* This app is a breath of fresh air! Every time I'm in the middle of a project & I'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 ### 5/5 — Ottima app *2016-12-26, version 10.0.1* Utile, versatile, completa ### 5/5 — Second to none *2016-12-01* I'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. ### 5/5 — Completely Awesome *2016-11-30* I really need to use this app more and keep up to date. I am seaching for things ont he internet when they are sitting there inside this app just waiting for me to use. The app is universal. This is one seriously useful app for everyone from students through to professions. You may have gathered I like this app and what the developer is doing with it over time very much. And now with an updated manual and 2 digit SMD codes, just keeps getting better. ### 5/5 — Excellent!!! *2016-09-25* I have had this app from when it first appeared in the store. It is excellent !!! I use it at least once a week. It saves not only lots of calculations but many hours looking for items such as pin outs, voltage drop battery size etc. Well recommended. David Romford UK ### 5/5 — Fantastic general reference for electronics *2016-05-23* 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. ### 5/5 — 光买不评论的人 *2016-01-28* 是不是像我这样的人很多啊，为了鼓励作者，来个评价，使用太方便了。 ### 5/5 — Already a good app *2015-09-24* After using the author'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. ### 5/5 — Top notch App *2015-08-21* Highly recommend I've used this a lot and can safely say it's worth every penny... ### 5/5 — Fantastic App *2015-07-04* I find this app is intuitive and helpful thank you ### 5/5 — Brilliant *2015-06-30* Just buy it Dr_Jeff_Morris ## Most critical reviews (10 lowest-rated) ### 1/5 — Abzocke!!! *2014-05-09* Ich habe die App erworben jedoch ist es nicht möglich sie herunter zu Laden. Dachte es liegt am iTunes Store jedoch war es möglich jegliche anderen Apps runter zu Laden. Bitte beseitigen!!!!! ### 1/5 — Unable to download data update *2013-12-13* Unable to download data update. Always failed in the middle of downloading update. ### 3/5 — 手册连接也不能打开 *2019-04-08* 什么情况，元件怎么不能连接成电路图，是右上角的编辑符号吗？为什么没反应 ### 3/5 — Ok app *2015-04-13* It's an ok app. It'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. ### 4/5 — Very good application *2017-11-25, version 10.0.1* I have been in electronics as a technician, engineer, and ham radio operator for over 50 years. This is the best program of its kind considering the price. ### 4/5 — rf *2016-04-27* 下载不了.付了钱 ### 4/5 — Very useful! *2016-01-14* One of the most complete app I ever met in electronic engineering. Need some minor improvements (electronic tubes) , but a must have for anyone working in electronic fields. ### 4/5 — Is it worth the cost? *2014-01-31* 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! ### 4/5 — RF Toolbox Pro *2013-09-28* 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. ### 5/5 — Awesome app *2026-01-31* Awesome app ## Most praised reviews (9 highest-rated) ### 5/5 — Sehr gut *2024-11-15* Tolles Programm, sehr nützlich. Schön wäre es wenn es ebenfalls auf dem Mac laufen würde. ### 5/5 — Swiss Army knife for electronic engineers and hobbyists *2023-03-25* The app is practical, portable, affordable and most importantly, recommendable. It’s easy to use, continually updated and saves countless time hunting for that missing formula. It’s a go to app for hobbyists and professionals alike. Thank you Marcus for sticking at it. ### 5/5 — Just bought this *2023-02-21* Just got this App, and again I am amazed at how much work and effort this developer puts into his app. I tried at one time making my own app, and although I was able to do simple apps, I gave up when trying to do more detailed and complicated app so I know a lot of work goes into it. One of the great features about all his apps is “none of that subscription garbage which other greedy money hungry developers push”, subscription is rubbish and makes no sense. I have decided to compete with this developer and make a similar item to give him a run for his money, but I would strongly advise everyone to stick to his apps, unless you want to buy my useless app, 😂 ### 5/5 — What a wonderful toolbox! *2022-09-06* I’ve just opened a color tool and enjoyed a wavelength slider with a 0.1 step! Thank you! ### 5/5 — A most excellent App *2019-12-15* 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 ### 5/5 — A truly useful App *2018-12-06* I have been watching this evolve into a truly useful App , nice to have so much information a tap away ### 5/5 — Great app *2018-11-08* This is just a great app! ### 5/5 — Very Handy *2018-11-08* 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. ### 5/5 — A real electronic toolbox *2018-10-25, version 12.0.5* What a nice professional product. I use this app weekly, saves time from not getting on a workstation just to design or validate a simple circuit. Both RF-Toolbox Pro and Electronic TB Pro have been excellent references, and are always being improved/updated by Marcus. Thank you. --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-01.*