HP 12C Financial Calculator App Reviews

I really like this app but it is not acceptable that the vertical mode does not fill the entire screen of iPhone 5/5s

I use This APP everyday! Please Update for Iphone 5 screen!!

I have had this app for a very long time. I recently purchased a new iPhone 6. Since the purchase of my phone the app definitely has a glitch. When I tilt my phone for landscape the app does not tilt along with it all the time. Once in a great while I can get The app to respond but its very infrequent. I hope there is an update in the works to fix this…

Ive used HP calculators beginning in college and throughout my entire career - 36 years. This app is all I could hope for.

In portrait mode: 2 sqrt Flip to landscape: f prefix Now the app is frozen. Im on iOS 8.1.

Just paid $15 - and, on my iPhone 6 with iOS 8.01 it doesn’t rotate to landscape view - all you get is portrait! Waste of money - come on, HP!!!

First an old gripe. I had this up few years ago. It disappeared off my iPhone at the time I presume HP claimed their intellectual property and apple pulled it even though I paid for it!! That is atrocious. I paid for it do not touch it. I obviously wanted it more as I shelled out again $15 this time to HP to have the product. Now however Im furious. How do I get refund for this faulty app? The calculator looks like the beloved 12c but the functions do not work!!! It gives error if you try to calculate interest of a stream of cash flows!! What the heck, the looks is not why I buy this. Get the formulas to work before you sell this!!! I want my money back!!!!

I have used the 12c for 25 years so naturally want this app to be my primary calculator. Unfortunately the app doesnt always rotate to landscape and the clicking sound is very VERY annoying. On the plus side it solves some equations faster than the real calculator which is impressive.

The calculator does not work on iPhone 6. Its time to have a new version, an update.

Please fix. Too expensive to have these problems

I use this app everyday for work. On the iPhone 6 the landscape function does not work. Very disappointed. I have to buy a new app now.

Im a big 12c user from way back. This app is perfect for me and I really appreciate the included help. If you are a hard core finance person you need this app

Clicking sound is annoying, how can I turn if off?

I bought this version to replace my previous one which did not go into landscape mode when I upgraded to iPhone-6. This one doest work either even though landscape settings are enabled! Very dissapointed with HP. Dont waste your money on this junk!

Love it but Id like to be able to turn off the key clicking sound

This is not a review but rather a report of my experience with the app on iPhones. 1. It DOES switch to and work in landscape mode on my iPhone 6s running iOS 9.0. 2. It IS a fully functional financial calculator. However, the look and functionality of the venerable HP-12C are available only when the phone is turned to landscape mode. In portrait mode, the calculator is pretty much just a "four-banger." 3. The click sound can be disabled in Settings. 4. HP has not updated this app in several years. Consequently, the app uses less than all the screen area available to it on an iPhone 5 or later.

I originally purchased this app in 2010. When I updated my iPhone in 2012 the app did not restore. I repurchased the app because I use it for work. It did restore in 2014 when I upgraded to iPhone 6. Then in 2015 when upgraded to iPhone 6s App did not restore. Apple says purchase does not qualify for refund.

Work-around for iOS9 glitch. This affects both the HP 12C and HP 15C emulators. The problem: When upgrading from iOS8 to iOS9, the "rotating" feature of both apps is no longer supported. Symptom: With default settings, both emulators are locked in "portrait" mode, which produces the "four function calculator" that others have complained about. The fix: Go to iPhone "Settings" and look for the HP 12C or HP 15C. Default settings include "Landscape Lock" set to ON. Set "Landscape Lock" to OFF. This will restore full functionality of the HP 12C and HP 15C calculators. Unintended consequence of this fix: Loss of the "four function calculator" that HP provided for portrait mode.

This is not the HP 12C I was hoping for. The look and feel is not adequate for the price. How do I get a refund? Ive already deleted the app. Thanks.

It wont give me the full image when I turn my phone making many of the features unusable