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HP 12C Platinum Calculator

HP 12C Platinum Calculator

Financial Calculator

351 ratings
244 reviews
#69 in paid Finance
💼 Business
💰 Finance
$16.99

Details

Released
August 29, 2009
Updated
July 21, 2026

Features

Developer

MORAVIA Consulting, spol. s r.o.
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HP 12C Platinum Calculator screenshot #1 for iPhone
HP 12C Platinum Calculator screenshot #2 for iPhone
HP 12C Platinum Calculator screenshot #3 for iPhone
HP 12C Platinum Calculator screenshot #4 for iPhone
iphone
ipad
📉no. 69
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Reviews summary↘︎
⭐244
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🔄6+ apps
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❓5 answered
FAQ↘︎
📦~ in 3 years
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About

This app offers the functionality of the industry-standard HP 12c Platinum Financial Calculator on your iPhone or iPod touch. It supports both RPN and algebraic data entry, with editing features like backspace and undo. Perform complex financial calculations for real estate, banking, and more.

✓RPN and algebraic data entry
✓Loan payments, TVM, NPV, IRR calculations
✓Cashflow and bond calculations
✓Horizontal and vertical display modes
✓Quick reference guide on calculator back
Show original description

What users say about HP 12C Platinum Calculator

Reviews of HP 12C Platinum Calculator are mostly negative: the Finance app is rated 1.6/5 from 351 App Store ratings. What users like most: accurate calculations, faithful emulation of physical HP 12C. Top complaints: frequent crashes, calculation errors. Summarized from real user reviews.

Positive things

  • 🚀Accurate calculations
  • 🔒Faithful emulation of physical HP 12C
  • 👍Familiar and useful interface

Negative things

  • 🐛Frequent crashes
  • 🐛Calculation errors
  • 🐛Compatibility issues with iOS updates
  • 🔋Drains device battery
See all reviews

What's New in HP 12C Platinum Calculator

3.0.0

July 21, 2026

We’ve completely redesigned the HP 12c Platinum app to deliver a faster, cleaner, and more modern experience – while keeping everything you love about the classic calculator. New in this version: • Brand new user interface with a refreshed, modern look • Full-screen vertical layout (finally!) • Improved graphics and Retina-optimized visuals • Redesigned settings for better customization • Enhanced performance and compatibility with the latest iOS devices • Bug fixes and under-the-hood improvements for smoother operation Still the HP 12c Platinum you trust – now more powerful and easier to use than ever. We’d love your feedback! If you notice anything that could be improved, please let us know directly in the app or email us at info@hpcalcs.com.

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Charts

Top Paid

📉 69-4

Finance

This app dropped -4 positions in Finance chart.

Last updated on November 15, 2026.

User reviews

Most RecentHighest RatedLowest Rated

THE Best Financial Calculator

Way back in 1988, joined a commercial lending credit analyst program for a major bank and was given an HP 12c Calculator. It was an essential tool that I used everyday in my banking career. I still use that 38 yo calculator but this app version makes this powerful tool just a tap away. I highly recommend this app to every financial professional!
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BBobbyK-CT

Nice

Works well; however, is there any way it can be scaled down to match the actual size on larger devices?
MMr.Dynamo

Update fixes crashing!

With this latest update they’ve fixed crashing errors. Will use this more now. Thank you.
MMmarcott

Improved…yay

Much better…old version cancelled app on clx…This version works great!
LLDFinance

New update 2.0. SO MUCH BETTER.

They finally fixed all the silly issues.
VBVg butters
See 239 more reviews

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User experience

🐞

Reported Bugs

3 issues

App crashes when pressing CLX button

Bug

Errors in time value of money calculations

Bug

Incompatible with iOS 11 and later

Bug
✨

Requested Features

3 requests

Update to support latest iOS versions

Feature

Optimization for larger iPhone/iPad screens

Feature

Option to disable annoying key click sounds

Feature

FAQ

What does the HP 12C Platinum Calculator app do?

This app replicates the functionality of the physical HP 12c Platinum Financial Calculator on your iPhone or iPod touch. It allows you to perform a wide range of financial calculations essential for real estate, banking, and general finance.

What are the key features of this financial calculator app?

Key features include support for both RPN (Reverse Polish Notation) and traditional algebraic data entry, editing functions like backspace and undo, and the ability to quickly calculate loan payments, time value of money (TVM), net present value (NPV), internal rate of return (IRR), cashflows, and bonds.

How much does the HP 12C Platinum Calculator app cost?

Based on the provided information, this application is a paid app. It does not appear to have in-app purchases or advertisements, suggesting a one-time purchase for full functionality.

What devices is the HP 12C Platinum Calculator app compatible with?

The app is designed for use on iPhone and iPod touch devices. It offers different display modes, with a horizontal mode showing the full calculator and a vertical mode providing a simplified basic RPN or algebraic calculator.

Who would benefit from using this financial calculator app?

This app is ideal for finance professionals, real estate agents, bankers, students studying finance, and anyone who regularly needs to perform complex financial calculations and wants the convenience of having a trusted calculator on their mobile device.