HP 12C Platinum Calculator

HP 12C Platinum Calculator

By HP Inc.

  • Category: Finance
  • Release Date: 2009-08-29
  • Current Version: 2.2.7
  • Adult Rating: 4+
  • File Size: 22.55 MB
  • Developer: HP Inc.
  • Compatibility: Requires iOS 8.0 or later.
Score: 2
From 122 Ratings


The Platinum version of the industry-standard HP 12c Financial Calculator adds the choice of time-saving RPN or traditional algebraic data entry as well as convenient editing features such as “backspace” and “undo” keys. Built with the same algorithms and calculation sequences you trust for real estate, banking, and finance functions every day. When you find yourself without your calculator, relax – just open it on your iPhone or iPod touch. FEATURES: -Developed by HP, the original inventor of the HP 12c Financial Calculator series -Identical layout, functions and answers millions rely on -Quickly calculate loan payments, TVM, NPV, IRR, cashflows, bonds and more -Horizontal mode shows full calculator and vertical mode provides a simplified basic RPN or algebraic calculator plus tip calculation feature -In horizontal mode, click on the HP logo to show the back of the original calculator with quick references to common calculations -Keep the power of your HP 12c Platinum handy on your iPhone or iPod Touch



  • Excellent

    Six years ago I wrote a review and gave it one star because of some math inconsistencies that were also at odds with the way the real 12CP worked (I still have two of them). I had honestly forgotten about this review. I revisited the app and now give it 5 stars. It seems to now work like the hardware version in everything I checked. This is as good as it gets.
  • Don’t waste your money

    By formerHPfan
    I purchased the “platinum version” of hp12c when the regular version quit working on my iPhone. Platinum also doesn’t work. Called HP technical support and a “technician “ in Bangladesh answered who had no idea what I was talking about. I asked to speak to someone in the U.S., was put on hold for 30-seconds & then the same person picked up with the same greeting I received originally. Very frustrating interaction with a company that I once respected.
  • Key click problem

    By robertmtech
    This would be a four star app if not for the problem of the key click - or should I say the DOUBLE key click. This has been a problem forever ... please FIX IT!
  • Finally updated to 64 bit

    By canzola
    Looks and works great now
  • Whats not to love?

    By Sea-dweller1
    With the latest updates, the bugs that people complained about are gone. This is app is the next best thing to the real deal.
  • Works great with iOS 11 (October 2017)

    By Awesome Coffee App
    As of October 21, 2017 this app works great in iOS 11. Given that HP is now using a cheap low cost provider to make the new physical calculators out of Asia, this app is the only HP12c worth buying. The new physical calculators don’t register half the keys if you type fast. This app is great for iPhones and iPads. Make sure you get the platinum version in order to have the latest features such as backspace.
  • HP hasn’t update it for the new IOS

    By jasmj
    I paid $20for this app and know with the new IOS 11 is not working because the developer hasn’t update it. Really. I like the real calculator and this app, but comen on update it please.
  • IOS 11

    By fcaraza
    Can you please update the app so it can work with IOS 11
  • No update

    By nani34
    Pls Update this app
  • does not work with ios 11

    By Neco marrar
    I use the hp 12c pt app for many years. now with the update of 11 he stopped. How do I update? I can not stay without it because I paid when I bought it.