RPN Calculator 48 App Positive ReviewsTom Kerrigan

RPN Calculator 48 Positive Reviews

4.8
4.80711 star

Total 61 Positive Reviews

RPN Calculator 48 App User Positive Comments 2024

RPN Calculator 48 app received 61 positive comments and reviews by users. Can you share your positive thoughts about rpn calculator 48?

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RPN Calculator 48 for Positive User Reviews

My Go To Calculator!This full feature scientific calculator is my go to calculator for everything. I love the RPN style of entry, science the classic HP 45 and 65 calculators I loved so much. It also has hexadecimal and octal modes that I used while working, not so much now that I am retired. Easy to use. Love the display..Version: 1.0.7

Perfect form and functionI've tried all the top RPN calculators, always return to RPN 48; it's never let me down. Due to my failing eyesight the app has the right key size so the right number of features for an iPhone 6 version of my 1995 HP48G. The only odd thing ever to happen: a 2 year old update notification on November 17, for iPhone 6/Plus screen size! :D.Version: 1.0.5

Great calculator.Love this. Most of my muscle memory from using an old 48G comes right back and works in this app. Great RPN calc..Version: 1.0.4

It just worksI bought my first iPhone--an iPhone SE--about two weeks ago. One of the first apps I downloaded was HP Prime. The buttons were so tiny, especially on this screen, that it was almost useless. So I tried using Apple's builtin calculator app. I didn't like it. At all. RPN 48 is exactly what I was looking for: polished, functional, and practical. It's little things like switching the color scheme to your preferred 48 and flashing the buttons as you type out characters, that make this calculator go above and beyond. The developer could have just designed an also ran app that only included RPN, but he cared enough to go the extra mile. Thank you! As a side note, I uninstalled the Apple calculator app, and now my wife doesn't know how use my phone as a calculator when she doesn't have hers!.Version: 1.0.5

Love thisBy far the best rpn I’ve found. So happy with it, I bought it twice for both home and work..Version: 1.0.5

RPN CALCULATORI’ve been using RPN calculators for over 43 years and I had this one on my iPhone 6 Plus for 3 1/2 years. To say that I love RPN calculators is an understatement. I retired my 6 plus yesterday and now I’m putting this calculator on my new iPhone 8.Version: 1.0.5

RPN 48 is a great practical copy!Introduced into using the 48 in engineering school, I find this app a welcome and familiar tool on my phone! No need to learn anything new and RPN just makes more sense from a mathematics perspective..Version: 1.0.7

Feels so comfortableIn 1988 I bought an hp32s and I have used it throughout my career as a physicist. It never got “borrowed” (well when it did it was given back very fast!) and it has done some serious and lots of trivial calculations. However, being so wedded yo RPN means that I have problems with normal calculators. This app feels so comfortable for an RPN user..Version: 1.0.7

Perfect calculatorAs someone who owns multiple vintage HP48s, I wanted the same RPN features and look & feel on my phone. Most of the other HP calculator apps try to perfectly emulate the calculator which isn't practical on a phone. This app strikes the perfect balance of usability and respect for the original design..Version: 1.0.7

Great RPN CalculatorElegant, all you need most of the time and not what you don’t. I use this calculator more than any other. It’s my go to, my everyday calculator..Version: 1.0.5

AmazingAll you need.Version: 1.0.7

Perfect Replacement for my Old 48GAn engineer here. My original hp from college (late 90s!) died a few years ago, and this is the one app that perfectly simulates it in every way. The only thing missing is the satisfying feedback of the original physical keys. Fellow engineers and hp fans know exactly what I’m referring to. I’ve tried other, more well-known calculator apps, but I always return to this one. If I could donate to the developer, I would. It’s a real service to this of us who still need a stand-alone calculator for complex work..Version: 1.0.7

Great take on an RPN calculatorWorks well with iOS 14 on iPhone 12. Draws inspiration from HP calculators in a good way, and includes some new additional features..Version: 1.0.7

The Best RPN on iOSHands down the best calculator app for those biased to RPN. It has all the basic functions that you’d want to execute on your phone and nothing else to clutter the display. I really like the HUGE stack as well. The layout is clean and the color schemes add a nice little touch of flair. I can’t speak highly enough about this app. My only gripe is that you can fill the stack and it will prevent you from entering more numbers. This doesn’t come up often since the stack has to be around 100 entries, but I’d prefer if it would start overwriting the top of the stack as a new number is entered..Version: 1.0.5

RPN48 is great.This is the only rpn calculator I have found for iPhone that: 1. Looks good on small iPhone SE 4 in screen. 2. Does engineering notation properly. 3. Doesn’t have any bugs. I wish I had found this before wasting money on hp prime for iOS..Version: 1.0.7

Utterly brilliant. Pocket calculator heavenBliss..Version: 1.0.7

HP41 CV/CX has diedHave a number of the 41 series and they have all finally died. This has been a good replacement although i haven’t explored it’s programmability..Version: 1.0.7

Great calculator, especially for RPN usersThis calculator is my favorite and for good reason. It works perfectly, reliably, and logically. Reverse Polish Notation, RPN, is a method for solving math problems involving more than two operations. In other words, it is the best utility for solving the problems you face when you need a calculator. Learn to love it..Version: 1.0.7

RPN calculatorI like the calculator but where is the factorial button? Can’t believe it wasn’t included in the functions! Besides that it’s easy to use with 16 decimal place capability..Version: 1.0.5

Exactly what I needed!As a lifelong RPN user I have a hard time with “standard” calculators. Therefore on every device I replace the stock calculator with something else. On a phone it needs to be simple and effective and this one fits that bill exactly. It has the features I need but not so many others that it becomes cluttered or difficult to use. When I had a question the developer responded quickly and was able to help me. No piece of software is perfect and even if it was perfect for me it wouldn’t be for someone else. This is a tool and it works as well as I could possibly ask for!.Version: 1.0.5

Happy with this appHave been using another app based on an older hp calculator with hp programming and with reduce option (relatively more expensive). I prefer this one as a calculator (buttons, sound, key placement, basic functions). IPhone7.Version: 1.0.5

This is a nice RPN calculatorI don’t have any previous experience with RPN calculators. I have never owned an HP calculator with RPN. However, I like this calculator app. It doesn’t take up much storage capacity on the iPad and it seems to work quickly. If one has never owned an RPN calculator before then this is a good calculator to have on an iPad to try out Reverse Polish Notation (RPN) with..Version: 1.0.7

Rocks. PeriodThis is the best calc app I have used. Simplified or full on functionality and stable. Love it. Highly recommended..Version: 1.0.7

Just like my first love HP 30 years ago.Everyone should try RPN, a wonderful invention, and this nifty app is the flagship of classic RPN implemented on iPhones and iPads. Indispensable once you use it a few times..Version: 1.0.7

Simple, functional, RPN Calculator.Cannot be pre-programmed for calculations and “Roll” should be “RDO” (or similar) for Roll Down and Omit, but overall I am very glad to have it..Version: 1.0.7

WonderfulJust like my old HP-48GX. Simple, clean and attractive. True to the design. So much more comfortable than the stock app. It's a real calculator, the way one really thinks, not like the government issued TIs used in the schools nowadays..Version: 1.0.5

Awesome!Every physical HP scientific calculator that I’ve purchased in the past 15 years has suffered from particular keys working intermittently. I long for the good old days of the HP-41C. I stopped using the newer physical HP scientific calculators because of the flaky key issue. I love the HP interface and RPN, so this app fills the void, as HP’s newer physical scientific calculator products are crap. This app is great, and I love some of the software shortcuts. Well done to the developer who has filled a much desired niche with this great app!!.Version: 1.0.7

Nice RPN calculatorNice clean little RPN calculator, not trying to pretend to be something else. I’ve been using it for a few years and it alway gets the job done..Version: 1.0.7

Hella DopeAwesome app for RPN users. This is not a true emulator, so many functions and keys are missing. This is, however, exactly what I wanted since I do not use a phone for heavy calculations. The basic day-to-day operands are here, as well as enough advanced functions for light field work. It is, in my opinion, an RPN equivalent of something between the IOS calculator and Windows calculator — clean, modern, intuitive, and plenty capable for a iPhone/iPad. My biggest gripe is that this app does not support landscape mode on iPads, which is evidently an oddball Apple issue. I look forward to a potential future update. Until then, this is easily the best RPN app I’ve found and is well worth it..Version: 1.0.7

Exactly the RPN Calculator I Want on My PhoneThis app is far superior to the default iOS calculator app - mostly because it’s RPN. It does everything I need a smartphone calculator to do, and I don’t have to change the way I think about using a calculator. It works reliably and smoothly. It’s been the calculator app of choice on each of my last four iPhones!.Version: 1.0.7

A Great RPN!I have missed having a “proper” calculator! I have used other ports of my 48gx into the iOS world and this one is the best so far. Others took great pains to duplicate it exactly. This one does what I need it to do and nothing more. Well done!.Version: 1.0.7

ExcellentBest implementation close to the original HP.Version: 1.0.7

Great RPN calculator HP48-likeOk it’s not a full HP48, but has all the basic functions of a scientific calculator, in an RPN working mode with a large visible stack and nice HP colours. Excellent UI polish. It’s my favourite iOS calculator (I’ve only been using RPN calculators for 35 years) now that m48 is no longer available. Well worth buying the app. Well done to the author. Disclaimer: I still own a working original HP48 😀.Version: 1.0.7

Please add haptic keyboard feedback supportThis app has everything. Could you please add haptic keyboard feedback? I turned off the sound as I want the calculator to be silent. Haptic feedback would be great to know when I have pressed a key..Version: 1.0.7

Lost without itBeen using this for years now. It's one of a few apps that I immediately install on any new phone. Since becoming addicted to RPN in college, I can't use regular calculators. Thankfully this high-quality app exists! I can't remember what I paid but whatever it was, it was well worth it..Version: 1.0.5

Replaced my call appVery well designed, looks incredibly close to the 48G/GX with all the original functions (apart from programmable stuff and other functions I don’t remember and probably didn’t use -was so long ago-) Once you have used a Reverse Polish Notation calculator all others feel clunky and weird..Version: 1.0.5

Great RPNI’ve had this app for over 5 years. Reliablity is super good - I’ve not noticed any crash. Usability is high. Absolutely no complaints. Love it!.Version: 1.0.7

FantasticFinally! A calc app that replaces my old m48 app that was removed from the store. This has nice big responsive buttons and large 10 level stack with exactly the right amount of functions used most often..Version: 1.0.7

One of most used apps I haveCan’t live without it!.Version: 1.0.7

My go to calculator after many yearsMath and Comp. Sci. teacher retired after 40 yrs. I have a number of advanced Math apps on my iPhone and old iPad but this is still my first choice for quick number crunching..Version: 1.0.7

Perfect RPN calculatorThis app is a perfect replacement/ alternative for HP calculators. I would ask for the text on the keys to be a bit larger for my small iPhone SE screen and failing eyes..Version: 1.0.7

Simplement parfaitLa meilleure.Version: 1.0.4

Love it!I’ve owned & used most ALL HP calculators in my many years as a land surveyor & business owner and have used this app for several years now & find it works GREAT!.Version: 1.0.7

Easy, intuitive RPNEasy to use. Great interface. Does everything I need and more..Version: 1.0.7

Great smartphone replica of the old HP 48’sI really love this app! It takes me back to my old engineering college days with my HP48GX. I ditched the crappy iPhone calculator and replaced it with this app and now I’m fast as lightning again!.Version: 1.0.7

Amazingly like my old HP48While it doesnt do everything my old HP48sx could do (programming etc), it does an amazingly good job at the main things I use RPN for, rapid stack memory calculations, trig and algebra. The best HP calculator app I have found while giving me the convenience of the iphone. Buttons give click sound feedback and the Interface even looks the same..Version: 1.0.5

Love it. Just like my old HP’s.For several years I settled for a free (and crappy) RPN calculator ap. Finally decided to spend a few bucks for something with real functionality. Well worth it. Why did I wait so long?.Version: 1.0.7

RPN in your pocketI own several HP calculators, and even then I occasionally don’t have one handy. This is a smart and functional design that any engineer or any designer will appreciate..Version: 1.0.7

Registers in SightAs an old timer with hp scientifically I would not have anything other than RPN. But what makes this calculator practical for your phone is the ability to view the contents of the stack of Registers..Version: 1.0.7

Perfect solution for my needsI recently switched to iOS and finding the right RPN calculator was important to me. I was happy to see the old 48 replicated! I used the real thing in highschool back in the late 80s and immediately was familiar with the layout. This app does everything I need from an RPN calculator..Version: 1.0.7

Excellent replacement for HP48This app looks and performs just like the classic 48! The only thing that I miss is the tactile feel of the key clicks on a real 48. Perhaps a little bump from the phone shaker might simulate that. This app provides the basic functionality of a 48, but not the advanced capabilities like matrix operations. Regardless, a well deserved 5 stars..Version: 1.0.7

Great calculatorI found out about RPN yesterday and wanted to try it out for myself. I've never much liked math but this app is quite interesting to use once you learn how it works..Version: 1.0.5

The BestLoved my 48 in college and later when I worked in a chemistry lab. More importantly now I am able to do balancing budgets and the occasion fun calculations with my kids helping on their homework. The RPN feature and multiple lines helps keep track of your numbers when a it’s easy to fat finger on a phone. Great interface. Thanks.Version: 1.0.7

Good for everyday useI find this app gets the job done for most calculations I need to perform on a day to day basis. The app supposedly has a 100 line stack but doesn’t allow you to recall anything from that stack other than swapping with the previous. It’d be nice to pull a previous calculation to use in an operation..Version: 1.0.7

Simplified HP48Gives the basic RPN performance of the HP48 series calcs in a somewhat familiar interface. Wish it had a few more features (like units) but very good for everyday computing for people used to RPN. Greatly miss my HP48gx; it was solid and had a great ergonomic feel (you never missed a key input unlike can happen tapping a phone screen). Granted there was a ton of features on it I no longer use (need) but I would love to see a better 48 emulator app available (like the old i48 app)..Version: 1.0.7

Just worksIf you were an engineering major in the 90s, you will feel right at home. It loads super fast, the buttons are right size and math is accurate. Please optimize for iphone 6 PLUS users :) On a side note, you should check out the developers chess app, one of the best out there for mobile.Version: 1.0.5

Nice functional rpn calculatorI was looking for a simple rpn calculator that was close to my HP 48G. This is a nice compromise of basic functionality and responsive keypresses..Version: 0

Long Time RPN UserI’ve paid a lot of money over the last 30 years for various HP RPN calculators. Some turned out to ge collectors items. This is as good or better than those..Version: 1.0.7

What Apple should have madeThis is the PERFECT RPN app for iPhone, after trying many different ones this one is the perfect balance of features and simplicity. I’d recommend to anyone who is used to using RPN calculators. The developer is very nice and welcomes any feedback I had!.Version: 1.0.7

This is the RPN calc app you wantThe only calculator I used throughout seven years of higher education was my HP48Gx. I cannot use an infix calculator now, and I miss the stack on simple RPN calcs. I’ve used just about every HP48Gx emulator for iPhone that’s come out. They all spend too much time trying to emulate a handheld calculator. This app leaves the past in the past and brings a usable RPN calculator with a stack to your phone. This is the app you want..Version: 1.0.7

I love this calculator.I only miss the SWAP button from the original HP calculators. Please consider adding it to a future version.Version: 1.0.7


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