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powerOne Finance Pro Calculator - Financial, Mortgage, Business Calculator

By Infinity Softworks

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Powerful financial, business and real estate calculator includes algebraic, RPN input and over 400 free calculations. Create your own, keep a history and share with others.

● Multiple time Apple staff pick including Best of 2010
● "The créme de la créme of calculators" - AppAdvice
● "Incredibly powerful tool for calculations of all kinds." - Smokin' Apps
● "You need this calculator. It's miles better than the competition." - Robert Burns
● "…sets the benchmark for other calculators to reach." - Fred Swan
● "Not sure how I could do my job without powerOne." - Arvid Martin
● "A legend. The best financial calculator app I have ever seen." - Worldwide Tech
● "… powerOne shines." - Mac Observer


Whether mortgages and real estate, finance and investing, math and science, medical, health, conversions or construction, powerOne has you covered. There are hundreds of spreadsheet-like calculator templates pre-installed or in the Library, ready right now for all kinds of what-if scenario analysis.

And for those one-off calculations use powerOne's elegant algebraic and RPN calculator. Perform calculations in decimal, fraction or feet-inch format with hundreds of functions that include powers, logs, trig, programmers math and more.


Sometimes a number isn't enough. Visually seeing data in the form of a function graph, bar chart or scatter plot enhances understanding like a result never could. For instance, analyze Mortgage, Auto Loan and TVM amortizations, watch investments grow in 401(k) and Savings, and visually see the relationship between NPV, IRR, NUS and NFV in cash flows. Zoom, pan, trace and analyze in many bundled and Library templates, or add to your own.


powerOne is easily customized. It includes a dynamic language to create your own calculator templates. It can be as easy as entering a formula similar to HP Solve or harness the complete capabilities of powerOne's simple scripting language. Hundreds of examples and instructions included.


Past computations are always available at your fingertips. powerOne automatically saves a history of your calculations. Name them, annotate them, share them or re-calculate.


Whether colleague or client, powerOne makes it easy to share the results and created templates, too. Just choose who to send it to. The results are in the email and so is the template. Click the attached template on an iPhone, iPod touch or iPad and it will load right into powerOne.


After 15 years and close to 20 million software calculators distributed, Infinity Softworks has earned its reputation for high quality apps. We'd love to hear from you, whether ideas, help or problems, at


This version of powerOne includes…

* Full-featured algebraic and RPN calculator with three theme options
* Pre-installed calculator templates:
- Time Value of Money with Amortizations
- Mortgages with PITI and Amortizations (Conventional and Canadian)
- Cash Flows including NPV, IRR, NFV, NUS and more
- 401(k)
- Area Conversions
- Auto Lease
- Auto Loan
- Black-Scholes
- Bonds
- Breakeven
- Capitalization Rate
- Currency Conversions
- Date Conversions
- General Loan
- Investment Return
- Length Conversions
- Mass Conversions
- Percent Change
- Profit Margin
- Savings
- Summary Data including sum, average, min and max
- Tip
- Volume Conversions
* Access to hundreds of additional templates in the Library
* Create your own templates
* Perform decimal, fraction or feet-inch math with hundreds of functions ranging from powers and trig to programmer's math and matrices
* Save a history of all calculations automatically
* Share results and templates by simply entering a recipient

What's New in Version 4.1.3

- iOS 8 compatibility fixes
- Bug fix where fractional inches could be considered division in the case where a whole inch was missing
- Other bug fixes and minor improvements

*** Please help out by leaving a review and/or rating in the App Store. ***

*** Have a problem, comment or suggestion? Please email us at ***


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Customer Reviews

Brilliant Calculator

Having grown up with the HP business calculators I am very impressed with this App. It has Reverse Polish Notation, but gives my wife the option of the Algebraic format she likes.

The conversion templates (weight, length, currency etc) are extremely useful, and the ability to design your own templates if you are so inclined is also great to have.

However if you just want a simple, easy to use calculator this is also the one for you. A very nice useful and useable app. Well done to the developers who are active in developing the app over time. Keep it up.

A classic! Powerful!

I'm not sure if this is *the* best calculator app for iPhone, but it has to be close to the best. I had PowerOne on my first Handspring Visor over 10 years ago and on various Palm devices since then. Before I got my iPhone, I had a Palm Pre and missed this app terribly. I was quite excited to see the iPhone version in the App Store and it was one of my first app purchases. The templates are outstanding, numerous, creative and quite useful for a variety of purposes. The developer continues to improve it as iOS evolves. Definitely one of my favorite apps!

Simply the Best Financial Calculator for the iPhone/iPad

Continues to be my "go to" app when I don't want to carry my HP12C. It does everything that one does and more... Or at least more easily.

I am a CFP, which means I've had plenty of opportunity to run this software through its paces. Although I haven't used all of the numerous templates included, I will say the TVM calculations, etc couldn't be easier. I really have no use for my trusty HP 12C anymore. If you need a finacial calculator, look no further. I also love the programmable feature quite a lot.

powerOne Finance Pro Calculator - Financial, Mortgage, Business Calculator
View In iTunes
This app is designed for both iPhone and iPad
  • $4.99
  • Category: Finance
  • Updated:
  • Version: 4.1.3
  • Size: 3.8 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch. This app is optimized for iPhone 5.

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