Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

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Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

Calculator12 RPN 螢幕截圖

iPad

iPhone

About Calculator12 RPN

More than 30 years ago we saw the birth of the most popular financial calculator ever created--you probably had one (and probably still do!).

Calculator12 puts a rock solid emulation of that calculator on your iPhone, iPod touch and iPad, whether you need it for school or are looking to retire old faithful. What you get is true (albeit non-programmable) emulation with 100% compatible operation keystroke for screentap and computational and operational reliability every bit as good as the original.

But wait, there's more! (sorry about that). Calculator12 is not stuck in the 80s. You have the option to work with cash flows in the cash flow diagram format, changing values or inserting/deleting cash flows with just a tap. Three independent cash flow scenarios can be evaluated side-by-side, and with capital multiplication you can evaluate an exit strategy for outside investors. Results can be emailed from Calculator12 so you don't have to redo things like an amortization schedule or comparative investment report at your lap or desktop.

And you can see what was once hidden... the contents of the financial registers or optionally the stack are always displayed. For me at least confirming the accuracy of my entries relieves a lot of anxiety and prevents confusion when the results don't stack up. It's not programmable, but advance payment leasing functions have been pre-programmed in as well as conversions to APR and Effective Rate to fill some of the gaps. And it is blisteringly fast--what used to take 30 seconds now is done almost before your finger leaves the touchscreen.

Calculator12 was the very first emulator of that physical machine on the App Store, v1.0 released July 30th of 2008, introducing features (now almost universally copied) that take advantage of the unique features of iOS to improve your ability to deal with financial problem solving. There are lots of emulators now, but only one that has moved out of the 80s. (this one!)

*** This application listing provides an upgrade path for early adopters to the redesigned and renamed Calc-12E. It is identical to Calc-12E and is maintained on the App Store to provide a way for existing customers to upgrade their original purchase to Calc-12E free-of-charge... It will appear on your home screen as Calc12E***

最新版本4.2.3更新日誌

Last updated on 2019年02月12日

歷史版本

This app has been updated by Apple to display the Apple Watch app icon.

Bug fix: The keyboard isn't squished anymore when launching in landscape on an iPad

Version History

4.2.3

2018年04月10日

This app has been updated by Apple to display the Apple Watch app icon.

Bug fix: The keyboard isn't squished anymore when launching in landscape on an iPad

4.2.2

2017年10月10日

iOS11 HotFix. This is a partial fix for the problems introduced with iOS11, meaning that it *will* run on iPad, and it will run in landscape on iPhone. What isn't fixed is the ability to scroll the cash flow viewer—it won't scroll. I'll get to that, but right now no obvious solution presents itself.

4.2.1

2014年04月09日

FIX: removed experimental popup

4.2

2014年04月03日

New: email templates--now you can create your own templates for most of the email sent by the calculator. It is not as simple as I'd like, but it does give you many options. See the FAQs at the support site for more information.
Fix: rounding of displayed numbers

4.1.1

2014年02月20日

Fixed bug in the email amortization table, accessibility tweaks.

4.1

2014年01月27日

Added Launch Center Pro integration so you can launch directly to TVM, Bonds or Invest modes. Minor cosmetic fixes.

4.0

2014年01月16日

Full portrait mode on iPhone—don’t settle for the dumbed down keyboard you'll get with other products. All of the usability enhancements we pioneered in 2008 are now available in both portrait and landscape: visual cash flow, plain language messages, displayed register contents and more.

*** Please be aware that the iPhone 4/4S takes several seconds to rotate the screen--it will get there, it just takes a few moments on the older phones. ***

Also: full screen on iPhone 5, shows more digits before going to scientific notation, on iPad the calculator launches in the center (again!).

Bug: fixed bug in chained beginning of period amortization computation, now matches HP way. Thanks James!

3.5.0

2013年11月07日

iOS7 compatbility

3.4.0

2012年01月27日

Localization to Spanish, Portuguese and German.

iPad version now uses a long tap (press and hold) in the background picture to change the image.

Goto Settings>Calc-12E to restore a traditional design! Tweaked the keyboard design by laying the ENTER key on its side and rearranging the backspace, STO,RCL, GOLD and (now) GREEN keys. The change is undesired but there are reasons.

Bug fixes.

3.3.1

2011年03月18日

Now with copy and paste! Double or long tap on the display and copy/paste between apps. When a new number is pasted, we do not automatically press the ENTER button so that you can change it after pasting. CAUTION: when pasting, the calculator respects the region format in "Settings, General, International, Region Format" so if you are pasting a number that was formatted in a different region the results may be unpredictable!

Fixed a problem with the display when entering numbers at a fixed 2 decimal places. This was only a visual bug. Also improved the robustness when switching between cash flow scenarios.

3.2.1

2011年02月08日

Fixed condition that reduced the number of allowable cash flows to 50 and cleanup of images used for Retina display.

3.2.0

2010年08月31日

For iPad users, change the background image by tapping it and choosing a photo from your photo collection. The first time you do this, a copy of the default antique ledger is saved in your camera roll so you can use it again if you wish.

For everyone, the DATE function will report dates according to your global locale settings, no messing around required on the calculator. And an oddity with the click sound volume has been resolved.

3.1.2

2010年08月08日

Two minor bug fixes

(the cool backgrounds on the iPad are coming soon!)

3.1.1

2010年07月03日

Support for fast app switching with new graphics for the iPhone 4 retina display.

3.1.0

2010年05月18日

Cosmetic interface tweaks to improve usage on iPad (automatically shows cash flow diagram when entering cash flows, sized properly on iPad). Minor bug fixes

3.0.4

2010年04月15日

Restored scrolling of the cash flow viewer, enhanced behavior of undo

3.0.3

2010年02月23日

enabled listening to iPod while using the calculator

3.0.2

2009年07月16日

Fixed bug that could cause the program to stop functioning.

3.0.1

2009年07月03日

3.0.0