--- title: "HP41CV - Reviews, Revenue and Downloads in United States | Apple App Store" description: "The HP-41 CV for your iPhone! The HP-41 CV was the best and handiest Pocket Calculator in the 90íst. (Part of the Apollo missions!) A UPN calculation with the same genial handling is now available fo" --- # HP41CV — United States ![HP41CV App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/d1/15/c9/d115c90a-c232-7659-1f70-e50dedf98fe3/AppIcon-1x_U007emarketing-0-7-0-85-220.png/400x400bb.png) **Developer:** [Jurgen Anton Strohmer](https://apptail.io/developer/jurgen-anton-strohmer-Usnc) **Category:** Utilities **Rating:** 2.8/5 (22 ratings) **Price:** Free **Bundle ID:** UserJue.HP41CV **Store:** Apple App Store **Country:** United States **Version:** 5.0 (released 2023-04-03) **Original Release:** 2017-04-12 **App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id1214637000) **AppTail Page:** [https://apptail.io/app/hp41cv-ywye/united-states](https://apptail.io/app/hp41cv-ywye/united-states) ## HP41CV Description The HP-41 CV for your iPhone! The HP-41 CV was the best and handiest Pocket Calculator in the 90íst. (Part of the Apollo missions!) A UPN calculation with the same genial handling is now available for your iPhone. For all users, not familiar with the UPN Concept, a Basic course with examples is included. The most functions of the HP 41 CV are available free. In addition statistic functions, programmability, persistent Key assignment and new functions like printing will be available as option. ## HP41CV Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/31/07/07/310707f1-5180-9282-a43a-c6ea72b5eb89/pr_source.png/640x960.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/70/86/c2/7086c216-c5e4-78c6-8bca-c0a0340e15d0/pr_source.png/640x960.png) ## HP41CV Rating Breakdown in United States - 5 stars: 5 (23%) - 4 stars: 2 (9%) - 3 stars: 5 (23%) - 2 stars: 4 (18%) - 1 stars: 6 (27%) ## HP41CV Reviews in United States ### ***-- "Multiplication" 50 x .5 = 0, but 50 x 0.5 = 25.. at least in my experience.. so there may be a workaround for others having similar issues -- GreenBake, 2025-05-04 ### ***-- "ENG mode work wrong" The ENG mode doesn’t seem to work like my physical HP-41cv calculator. The point of engineering notation is to work mostly with whole numbers. This app seems to convert everything to a decimal when an ENG mode. For example, 123 shows up as “0.123 03” rather than “123.000 00” and 16,000,000 shows up as “0.0160 09” rather than “16.0000 06”. Maybe there’s a setting for this, but I can’t find it so this app isn’t useful to me. -- DaveKener, 2024-08-09 ### *---- "Not working" Can’t get this app to do anything -- jceaser, 2023-10-11 ### **--- "Functional issues" Entered 17.3, 0.92 X and got zero. Repeated calculation and sometimes it displays the correct value but if I immediately repeat the calculation, each time thereafter I get a different result and value is decreasing. Stack problem? GUI looks good but math functions need to produce the right values -- RM1796, 2023-09-26 ### ***-- "Leading Zero" I am seeing the same issue. If you multiply 50 by .5 you get zero. If you multiply 50 by 0.5 you get 25. Seems like a new issue. Otherwise I really like this app. Used a 41C since the 80’s. Can’t use anything but RPN. -- bspurloc, 2023-07-10 ### ***-- "41cv" This app no longer works on my phone. I tried deleting it and reinstalling it and it still does not work. Not all the keys are showing. It’s like it’s zoomed in on the upper right side of the calculator. -- Lisa Avgousti, 2023-07-09 ### **--- "Unreliable" I’ve been using this app for years and really loved it for the familiarity of RPN and the fact that it works fairly like my HP41CV. I opened it yesterday to do a simple percentage calculation (40 * .25) and I get zero. It repeatedly returns zero. I guess this is the end of this great free app. -- Rumblerider, 2023-05-28 ### **--- "Stuck in scientific notation" Why did the latest upgrade stick my calculator in scientific notation? No idea how to switch back and no instructions provided. -- Wordie Eddie, 2023-05-20 ### *---- "Bug" There is a bug with the decimal key. Please fix!!!! -- HP41forme, 2023-05-17 ### *---- "Worst mistake a calculator can make" So far, this calculator has given me the wrong answer to every question I have asked it. 60 x .5 = 50? 12% of 100 = 6? It seems to get it wrong more often than not. A calculator that gets the wrong answers is worse than useless. As much as I would like a free 41c emulator, this isn’t it. -- Signals42, 2023-05-16 [View all HP41CV reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews) ## HP41CV Discovered Keywords - hp41cv ## Apps Similar to HP41CV - [bcRPN](https://apptail.io/app/bcrpn-WnAc/united-states) - [Halcyon Calc Lite](https://apptail.io/app/halcyon-calc-lite-iUnd/united-states) - [Complex RPN Calculator](https://apptail.io/app/complex-rpn-calculator-kUnd/united-states) - [RLM-11CX](https://apptail.io/app/rlm-11cx-Hmvd/united-states) - [Plus42](https://apptail.io/app/plus42-kCUd/united-states) - [my41CX](https://apptail.io/app/my41cx-zwye/united-states) - [RCL-57](https://apptail.io/app/rcl-57-pHNf/united-states) - [RLM-10CX](https://apptail.io/app/rlm-10cx-gjMn/united-states) - [HP-35](https://apptail.io/app/hp-35-oCnu/united-states) - [HP15C: Scientific Calculator](https://apptail.io/app/hp15c-scientific-calculator-upTu/united-states) ## HP41CV Available In - [United States](https://apptail.io/app/hp41cv-ywye/united-states) - [Germany](https://apptail.io/app/hp41cv-ywye/germany) - [Italy](https://apptail.io/app/hp41cv-ywye/italy) - [Belgium](https://apptail.io/app/hp41cv-ywye/belgium) - [Australia](https://apptail.io/app/hp41cv-ywye/australia) - [Russia](https://apptail.io/app/hp41cv-ywye/russia) - [Switzerland](https://apptail.io/app/hp41cv-ywye/switzerland) - [Sweden](https://apptail.io/app/hp41cv-ywye/sweden) - [France](https://apptail.io/app/hp41cv-ywye/france) - [United Kingdom](https://apptail.io/app/hp41cv-ywye/united-kingdom) - [Czechia](https://apptail.io/app/hp41cv-ywye/czechia) - [Denmark](https://apptail.io/app/hp41cv-ywye/denmark) - [Dominican Republic](https://apptail.io/app/hp41cv-ywye/dominican-republic) - [Algeria](https://apptail.io/app/hp41cv-ywye/algeria) - [Ecuador](https://apptail.io/app/hp41cv-ywye/ecuador) - [Egypt](https://apptail.io/app/hp41cv-ywye/egypt) - [Spain](https://apptail.io/app/hp41cv-ywye/spain) - [Finland](https://apptail.io/app/hp41cv-ywye/finland) - [Greece](https://apptail.io/app/hp41cv-ywye/greece) - [Hong Kong SAR China](https://apptail.io/app/hp41cv-ywye/hong-kong) - [Indonesia](https://apptail.io/app/hp41cv-ywye/indonesia) - [Ireland](https://apptail.io/app/hp41cv-ywye/ireland) - [Israel](https://apptail.io/app/hp41cv-ywye/israel) - [Japan](https://apptail.io/app/hp41cv-ywye/japan) - [South Korea](https://apptail.io/app/hp41cv-ywye/south-korea) - [Kuwait](https://apptail.io/app/hp41cv-ywye/kuwait) - [Kazakhstan](https://apptail.io/app/hp41cv-ywye/kazakhstan) - [Lebanon](https://apptail.io/app/hp41cv-ywye/lebanon) - [Sri Lanka](https://apptail.io/app/hp41cv-ywye/sri-lanka) - [Mexico](https://apptail.io/app/hp41cv-ywye/mexico) - [Malaysia](https://apptail.io/app/hp41cv-ywye/malaysia) - [Nigeria](https://apptail.io/app/hp41cv-ywye/nigeria) - [Netherlands](https://apptail.io/app/hp41cv-ywye/netherlands) - [Norway](https://apptail.io/app/hp41cv-ywye/norway) - [Nepal](https://apptail.io/app/hp41cv-ywye/nepal) - [Peru](https://apptail.io/app/hp41cv-ywye/peru) - [Philippines](https://apptail.io/app/hp41cv-ywye/philippines) - [Pakistan](https://apptail.io/app/hp41cv-ywye/pakistan) - [Poland](https://apptail.io/app/hp41cv-ywye/poland) - [Portugal](https://apptail.io/app/hp41cv-ywye/portugal) - [Romania](https://apptail.io/app/hp41cv-ywye/romania) - [Singapore](https://apptail.io/app/hp41cv-ywye/singapore) - [Thailand](https://apptail.io/app/hp41cv-ywye/thailand) - [Türkiye](https://apptail.io/app/hp41cv-ywye/turkey) - [Taiwan](https://apptail.io/app/hp41cv-ywye/taiwan) - [Ukraine](https://apptail.io/app/hp41cv-ywye/ukraine) - [Vietnam](https://apptail.io/app/hp41cv-ywye/vietnam) - [United Arab Emirates](https://apptail.io/app/hp41cv-ywye/united-arab-emirates) - [South Africa](https://apptail.io/app/hp41cv-ywye/south-africa) - [Argentina](https://apptail.io/app/hp41cv-ywye/argentina) - [Austria](https://apptail.io/app/hp41cv-ywye/austria) - [Azerbaijan](https://apptail.io/app/hp41cv-ywye/azerbaijan) - [Brazil](https://apptail.io/app/hp41cv-ywye/brazil) - [Belarus](https://apptail.io/app/hp41cv-ywye/belarus) - [Canada](https://apptail.io/app/hp41cv-ywye/canada) - [Chile](https://apptail.io/app/hp41cv-ywye/chile) - [China](https://apptail.io/app/hp41cv-ywye/china) - [Colombia](https://apptail.io/app/hp41cv-ywye/colombia) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. 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