# HP 12C Platinum Calculator — Financial Calculator

> HP 12c Platinum financial calculator for iOS with RPN and algebraic entry. (iPhone/iPad app by MORAVIA Consulting, spol. s r.o..)

- Source: https://appshunter.io/ios/app/hp-12c-platinum-calculator/id328224790 (this page in markdown: same URL + `.md`)
- Developer: [MORAVIA Consulting, spol. s r.o.](https://appshunter.io/developer/1673101600)
- Category: Finance, Business
- Price: $16.99
- Rating: 1.60/5 from 350 App Store ratings · 242 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 29 MB
- Languages: American English
- Released: 2009-08-29
- Data updated: 2026-09-12
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/hp-12c-platinum-calculator/id328224790/reviews.md

## What is HP 12C Platinum Calculator?

Meet the next generation of your favorite calculator. The official HP 12c Platinum app, now brings a completely redesigned interface, a modern look, and improved functionality—while preserving the precision and reliability trusted by professionals for decades.

Built for everyday use in business, banking, real estate, and education, the new HP 12c Platinum brings a timeless classic into the modern era.

The HP 12c Platinum You Know – Now Better Than Ever
• Official emulator of legendary calculator device by Hewlett-Packard
• Identical algorithms, layout, and keystrokes as the original HP 12c Platinum
• RPN (Reverse Polish Notation) for fast and efficient input
• Built-in financial tools: loan payments, TVM, NPV, IRR, cash flows, bonds, and more

Be Ready. Anywhere. Anytime.
Whether you’re in class, at the office, or on the go, HP 12c Platinum is ready when you are. Just launch the app on your iPhone and get to work.

Download HP 12c Platinum today and experience the perfect blend of classic functionality and modern design.

## Key features

- 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

## Chart rankings

- #47 in Top Paid · Finance (US App Store)

## What do users think of HP 12C Platinum Calculator?

Overall sentiment: negative

**Pros**

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

**Cons**

- 🐛 Frequent crashes
- 🐛 Calculation errors
- 🐛 Compatibility issues with iOS updates
- 🔋 Drains device battery

**Commonly reported bugs**

- App crashes when pressing CLX button
- Errors in time value of money calculations
- Incompatible with iOS 11 and later

**Most requested features**

- Update to support latest iOS versions
- Optimization for larger iPhone/iPad screens
- Option to disable annoying key click sounds

## Recent user reviews (10 of 242)

All indexed reviews: https://appshunter.io/ios/app/hp-12c-platinum-calculator/id328224790/reviews.md

### 5/5 — Update fixes crashing!

*2026-08-15, version 3.0.0*

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

### 5/5 — Improved…yay

*2026-08-11, version 3.0.0*

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

### 5/5 — New update 2.0. SO MUCH BETTER.

*2026-07-22, version 3.0.0*

They finally fixed all the silly issues.

### 4/5 — Wonderful

*2026-07-21, version 3.0.0*

Wonderful. It took a long time.

### 1/5 — App Should be Updated!

*2025-12-30, version 2.3.4*

Very disappointed after purchasing to discover the app has not been updated. Gold 12c update is fantastic!  Please update this calculator too!

### 1/5 — What a shame

*2025-12-28*

Please stop being scammers and update the HP 12C Platinum app. It's been 4 years without an update and the calculator doesn't work! Resolve this immediately.

### 1/5 — Não roda mais

*2025-11-15*

Paguei pelo app e simplesmente não funciona mais.

### 2/5 — App keeps closing

*2025-10-13, version 2.3.4*

It’s it works with basic math and calculations, but when I do a present value, cash flow calculation it freezes and exits the app

### 3/5 — Update please

*2025-10-05, version 2.3.4*

Please update the app and fix the bugs of crash. It’s a great app.

### 1/5 — Refund Needed

*2025-10-02, version 2.3.4*

App hasn’t worked for years and crashes when launching. This calculator is legendary in the finance field and there is no excuse for years of these crashes. Either update the app or issue a refund for those of us who paid to get it.

## Frequently asked questions about HP 12C Platinum Calculator

### 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.

## Version history (last 5 releases)

### 3.0.0 — 2026-07-21

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.

### 2.3.4 — 2021-05-05

Updated for new devices and for newer versions of iOS.

### 2.3.3 — 2020-01-22

Bug Fixes

### 2.2.7 — 2017-10-14

Now supports iOS 11

### 1.0 — 2009-08-29

No release notes.

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All apps by MORAVIA Consulting, spol. s r.o.: https://appshunter.io/developer/1673101600

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-12.*