MathU 12D Financial Calculator

"5 stars - This app is great. Very Quick. Would highly recommend". See more in customer reviews. MathU 12D, the Deluxe Financial RPN Calculator, is written from the ground up to behave exactly like and surpass the classic HP-12C. MathU 12D uses the same RPN (Reverse Polish Notation) entry system and supports the same mathematical functions as the HP-12C. In fact, if you are familiar with the HP-12C you will be able to use MathU 12D right away. Supports iPhone, iPad and macOS. First released in 2010, the calculator continues to be updated with new features as iOS improves. Made by Creative Creek, LLC. We have been making calculators for mobile devices for over 25 years. Also check out MathU RPN, our advanced scientific and financial RPN calculator. MathU 12D adds some big improvements over the original HP-12C: 1) Visible Financial Registers -- The values of the financial registers are displayed prominently above the associated buttons. This allows you to quickly verify that the loan parameters are correct and builds confidence in the results. 2) Computation Speed -- You will be amazed how quickly MathU 12D produces results. Even complicated calculations like the determination of interest rate, IRR or NPV are finished in a fraction of a second. 3) Two line display -- A two line display can be chosen so that the x and y register values are always visible. You can immediately see results and verify input values. 4) Visible Programming -- Program lines are displayed using the function name instead of the key pad location. This makes reading and writing MathU 12D programs easier. 5) 20 Registers unaffected by programs - The registers are not shared with the program space so you can create up to 99 line programs without sacrificing any storage space. Documentation for MathU 12D is available from within the app. All the functions work exactly the same as on the HP-12C, so if you are familiar with the HP-12C you will be able to use MathU 12D right away. Features - Fast and accurate computation based on IEEE double precision (up to 16 digits) - 5 financial registers (visible on the main screen) - 20 storage registers - Programmable with up to 99 program steps - Program steps show function name directly - Two line display - FIX, SCI, and ENG display modes - Access to on-line documentation - Settings screen - Thousands and decimal separators follow international format settings - Copy and paste support - Support for iOS 8.x or higher. - Support for iPhone and iPad Functions Supported: - Time value of money (N,i,PV,PMT,FV) - Net Present Value (NPV) - Internal Rate of Return (IRR) - Simple interest - Cash Flows (CF0, CFj, Nj) - Bond pricing and yield (PRICE, YTM) - Depreciation based on - Straight line (SL) - Sum-Of-the-Years-Digits (SOYD) - Declining balance (DB) - Date in future (DATE) or days between dates (DYS) - Statistics mean, std, wieghted mean, factorial - Percent, percent change and percent of total - Linear curve fitting (x,r y,r) - Scientific functions (y^x, e^x, sqrt, 1/x, ln) - Integer and fractional parts (INTG, FRAC) Requires iOS 16.6+

We are excited to announce that MathU 12D runs on macOS as well as iOS! Both Intel and Apple Silicon is supported for macOS. The 4.1.4 release fixes a minor layout bug I noticed after the previous release went live. Enjoy! All the calculator functions work on iPhone, iPad, and macOS. Keyboard support: An attached external keyboard can be used with the calculator to access the functions (type of name on the top if a button). Tap the Key Help button to see what strings will work to "press" a button on the keypad.

Developer

Creative Creek, LLC

Main Category

Finance

Version

4.1.4

Version Release

2026-05-15

Initial Release

2010-07-13

Size

6 MB

Age Rating

4+

Price

USD 4.99

Languages

EN

Bundle ID

com.creativecreek.MathU12C

Version Rating

★ 4.77 (74)

First Seen

2026-05-28

Metadata updated 2026-06-16

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