The HP-like Calculator is especially designed for the small screen The biggest display and the biggest buttons of all RPN calculators for the iPhone. With a simple touch in the LCD Display all hidden function slide in when they are needed. With the next updates there will be more and more functions according to user demands Grab it now and enjoy all the FREE updates

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Similar Apps

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RPN Scientific Calculator
2
ProgCalc RPN Programmer Calculator-Free
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RPN Calc
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My RPN Calc
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Vicinno 10bii & RPN Financial Calculator Pack
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StudentLite
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MathU RPN Calc
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RLM-11CX
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Calculator Big Buttons
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RPN Calculator 48

RPN Calculator Pro alternatives

Alarm Clock - One Touch

Alarm Clock turns your iPhone into a beautiful night stand clock. What some of our 1.5 million customers say:Simple and elegant Crystal clean. Made in Germany to be enjoyed by you

  • rating 4.0

RPN Calculator 48

RPN Calculator 48 is a polished RPN replacement for Apples built-in calculator:- Starts quickly- Large buttons- Easy-to-read display- Same scientific functionality as Apples calculator- 100 entry stack (4 to 7 visible)- 6 memory buttons (A-F)- 50+ levels of undo/redo- Saves state on exit Use swipe gestures to undo/redo operations The ergonomics (screen and keyboard layout) of RPN Calc. 48 were inspired by HPs outstanding 48-series calculator. 48 is made by the developer of tChess (the critically acclaimed iPhone chess game) and Learn Chess (the Apple Staff Favorite e-book).

  • size 0.7 MB

PCalc - The Best Calculator

PCalc is the powerful choice for scientists, engineers, students, programmers, or indeed anybody looking for a feature rich calculator. It includes an optional RPN mode and multi-line display, a choice of button layouts, an extensive set of unit conversions and constants, a paper tape, multiple undo and redo, engineering and scientific notation, as well as support for hexadecimal, octal, and binary calculations. Includes an Apple Watch app, so you can calculate on your wrist

  • rating 4.65625
  • size 68.2 MB

Free42

Free42 is a re-implementation of the HP-42S calculator and the HP-82240 printer. It is a complete rewrite, not using any HP code, and it does not require an HP-42S ROM image. The executables and source code are released under the terms of the GNU General Public License, version 2.All third-party code used in Free42 is either in the public domain, or licensed under terms compatible with GPLv2, or used with the authors permission.

  • size 6.7 MB

Retro 15C

Students and scientists from the 1980s will remember the classic RPN scientific calculators. These calculators strike a perfect balance between functionality and complexity. I love this calculator and I like to share.

  • rating 4.84
  • size 5.6 MB

More Information About alternatives

RPN Scientific Calculator

A scientific RPN calculator inspired by traditional HP calculators but created specifically for the iPhone and iPod touch. It features a standard four level stack with multiple display options, and BCD math for accuracy. Provides ten memory storage locations with arithmetic access functions.

  • size 13.2 MB
  • version 1.3

ProgCalc RPN Programmer Calculator-Free

Now also available: ProgCalcPlus-includes floating point support, up to 10 macro programs, over 20 additional functions, and more. ProgCalc is a comprehensive RPN calculator designed for programmers. Important features found in this calculator that are not common in other calculators include the binary display, signed/unsigned mode, the modulo (hashing) function, byte/word swapping, 2s complement function and many more.

  • rating 2.39095
  • size 0.1 MB
  • version 2.0.3

RPN Calc

A simple reverse polish notation calculator loosely based on my trusty HP-32SII that runs on iPhone, iPad, and Apple Watch If you are familiar with HP RPN calculators, the operation of this calculator should seem very straightforward - albeit simplified. It cant be programmed, and it doesnt handle binary, or hexadecimal numbers. RPN Calc brings a reverse polish notation watch calculator to the Apple Watch In addition to the standard RPN Calculator app that runs on iPhone, iPad, and Apple Watch, RPN Calc includes a handy micro RPN Calc Today Extension available for convenient access to quick calculations from the pull down Today screen.

  • size 4.4 MB
  • version 9.0.3

My RPN Calc

My RPN Calc is a versatile RPN calculator with a clean and minimalist interface for iOS. It is a scientific and financial calculator inspired by the Hewlett-Packard HP-10C series pocket calculators of the 80s, most notably the HP 12C and HP 15C models. Summary of the main functions:- RPN input- Arithmetic functions (+, -, x, /, 1/x, +/-, etc)- Trigonometry, logarithms, hyperbolic trigonometry- Percentages (+, -, variation, total)- Dates- Complete complex numbers support- Gaussian integers- 2nd, 3rd, and 4th grade equations solving- Macros for simple programming tasks- Root finder for general purpose functions- Numerical integration- Conversions (temperature, distance, )- Constants (universal, math, )- Intgration with BaseCalc for radix conversionsSummary of the main statistical functions:- 1- and 2-variable statistics- Sums (x, x2, y, y2, xy)- Mean, weighted mean, standard deviation- Linear regression- Correlation coefficient- Linear estimationSummary of the financial functions:- Simple and compound interests- Cash flow analysis (NPV, IRR)- Depreciation (SL, DB, SOYD)Latest Apple Watch support allows standard operations (classical arithmetic, trigonometric, and logarithmic function) to be executed straight from your wrist

  • size 2.0 MB
  • version 4.0.0

Vicinno 10bii & RPN Financial Calculator Pack

The ultimate pack of Financial Calculators for professionals and students at a discount price Vicinno RPN Financial Calculator and 10bii Financial Calculator app emulate HP 12C Financial Calculator and HP 10bII Financial Calculator respectively on iPhone, iPad, and iPod touch, which both behave exactly like, support all the functions of the original Financial Calculators, and beyond with many mobile features. Highlight Features Time value of money TVM Cash flow analysis NPV, IRR Amortization Bonds Depreciation Loan payments calculation Statistical analysis Date arithmetic RPN entry (12C only) Programmable (12C only) Support auto-rotate and can be used in both orientations: landscape and portrait. Stay tuned Like us: www.facebook.com/vicinnoFollow us: www.twitter.com/vicinno

  • size 20.6 MB

StudentLite

Scientific Calculator for iPad, iPhone and iTouch all in the same App. The BEST Scientific Calculator Just try it for free - iOS 8 and 64 bit Easy to access the scientific functions by swiping between exponents, logs and sinus functions so all buttons are large and uncluttereds, this allows you to work faster and more reliable (no rotation or 2nd function keys needed). NOTE: - This FREE App may display ads on the iPad, but has full functionality.

  • size 16.7 MB
  • version 4.6.1

MathU RPN Calc

MathU RPN is an advanced scientific and fiancial calculator designed in the spirit of classic HP calculators. MathU RPN is based on the Reverse Polish Notation (RPN) entry system and combines more than 96 functions to create a calculator that meets the needs of professionals who use a calculator every day. In particular, improvements in this update include: o A two or four line display option so you can see more of the stack.o Visible financial registerso Support for iOS 8 iPhone 5, iPhone 6, iPhone 6 Plus.o New iPad interface that maintains its orientation during device rotation.o New stack and register display accessible via [RCL] [RCL]MathU 3.0 supports iOS 5.1.1 or higher (including iOS 8).For more info (including the users manual)go to http://www.creativecreek.com or use the built-in quick reference.

  • size 7.9 MB
  • version 3.0.2

RLM-11CX

The RLM-11CX is a full simulation of the successful HP-11C Scientific RPN calculator, with all the functions of the real one in a beautiful high definition interface. It includes a dynamic Portrait and Landscape orientation layouts that can be lock in the calculators preference ([g] > [PREF] key sequence). Disclaimer: THIS IS NOT A HEWLETT PACKARD CALCULATOR, AND IS NOT SPONSORED IN ANYWAY BY HEWLETT PACKARD OR ANY OF ITS SUBSIDIARIES.

  • rating 5
  • size 25.0 MB
  • version 6.0

Calculator Big Buttons

A new lightweight calculator with big buttons. BIG BUTTONS, SMALL SIZE Tired of calculators that requires many megabytes stealing space to apps and games?This app is only 200K, the smallest calculator ever in the market, while its the one with biggest buttons and better layout. Features:- copy result to clipboard;- five skins to meet your visual needs.

  • rating 4.60714
  • size 0.2 MB
  • version 1.0

RPN Calculator 48

RPN Calculator 48 is a polished RPN replacement for Apples built-in calculator:- Starts quickly- Large buttons- Easy-to-read display- Same scientific functionality as Apples calculator- 100 entry stack (4 to 7 visible)- 6 memory buttons (A-F)- 50+ levels of undo/redo- Saves state on exit Use swipe gestures to undo/redo operations The ergonomics (screen and keyboard layout) of RPN Calc. 48 were inspired by HPs outstanding 48-series calculator. 48 is made by the developer of tChess (the critically acclaimed iPhone chess game) and Learn Chess (the Apple Staff Favorite e-book).

  • size 0.7 MB
  • version 1.0.5