Calc-12E RPN Financial App Reviews

Updated for iPhone 5 layout

I have used an HP12C for many years and can't live with out it. I really don't like the portrait layout at all. I know you can just rotate it but it's slow, even on my iPhone5. Please add an option to turn this off in settings. I can't imagine anyone that uses a 12c all the time actually wanting portrait for any reason. Fix that and I give it 5 stars.

The best financial calc I have tried. Nice functionality, with the n, I, PV, PMT and FV shown all the time. The font shrinks to show more digits, if necessary. When you push a color function button, keys that you can press next are highlighted. These are features that are not possible with a physical calculator. I only wish that the iPad version, which I use on my iPad Mini, had a "full-screen" mode.

A single, brief glance at the version history of this “once great” 12-C emulator tells a story of intrigue (essentially no updates since 2014). Come on. What happened to valuing loyal and appreciative customers? From your own description of this product, there seemed to have been no small amount of passion you poured into this calculator when you actually introduced fun to Finance. You’ve lost that loving feeling. Get it back, please?

I have an iPhone 8 Plus running IOS 11. If I’m listening to an stream of audio and/video, the stream stops 90% of the time when starting your app. If I pull down the control center the play/pause button needs to be pressed play to start the streaming again.

I have never used a financial calculator before, but my current finance class practically requires it. I figured at this price it was worth it to try and it works great. The interface is easy to use and so far it has done everything I need it to.

This is a perfect recreation of an essential financial tool. Great job.

.....if you are familiar with the HP 12C.

All I can say, and if you use a 12-C you'll know what I mean, is that I feel like I got a friend back on my iPhone.

I had previously left a negative review. They fixed the problem, now works great. Beautiful interface, fast, and just like the 12c I have used for years.

This is the 12C emulator to get.

Was ready to spend $70 bucks for a replacement 12C till I saw this app. It works fantastic, & now have the calc with me at all times. I know, I am a dork to get excited over a calc app, but it is very cool!!

I work in finance and this is a great app. I no longer take my 12C with me--I just wip out my iphone everytime I need some math on the fly. Have never had a problem with it. The design is perfect.

One of my most used apps on the phone with one of the ugliest icons in the app store. It would make my day when this finally got fixed.

Visual cash flows, ability to see what's in the financial registers or the stack (!), buttons that support the retina display... This is a version of the venerable 12C for modern times. Great job!

Customer service was fantastic. I am extremely happy with the app.

Was user error in setting beginning or end of period for payment. Something to pay attention to for all new users to any financial calculators. Everything works well now and support response was great! ***********************

I love the new portrait mode. Your hard work is definitely appreciated. I'm a 30+ year HP12C user and your app is the best. Thanks!

Works as good as my 12c. Support was very responsive to a question I had. A developer responded right away to my email. Keep up the good work and thanks.

Off clicking noise Calculator great don't need hp12c anymore Can't figure out how to turn sound off (can on iPad) No easy way to communicate with developer

Just what this geek needed. I love calculating the NPV of my commissions.

I have use this app for many years now. Believe the most recent iOS 11 update the app appears to have failed and is no longer functional in landscape mode. In need of a refresh.

Format issues of the keypad area on the iPad Pro.

With the keyboard fix I now have a 4-star app that I can use both on the iPhone and iPad. Outstanding!