10BII Calc HD is a business calculator featuring over 100 built-in functions for business, finance, mathematics and statistics. Easily calculate loan payments, interest rates, amortization, discounted cash-flow analyses, TVM (loans, savings, and leasing), bonds and depreciation using a simplified algebraic entry system. The keyboard and display have been carefully optimized for the iPhone, iPod Touch and iPad. Two keyboard layouts and multiple specialized worksheets allow you to do much more than a 10BII calculator while maintaining compatibility with the standard.
HD version includes:
• 2 for the price of 1! iPad and iPhone versions included- use on both your iPad and iPhone
• HD graphics included for iPad and iPhone retina displays
• iPad version includes full support for slide over and split views.
• New worksheets including interactive graphs.
Features:
•Time Value of Money- Loans, savings, leases and amortization schedules using both the standard keyboard and a specialized TVM solver window that displays the contents of all the variables for rapid "what if" solutions to your problems. View and mail amortization tables.
•Interest Conversion- Nominal and effective rates.
•Cash Flows- Net present value, internal rate of return, net future value and net uniform series calculations. Up to 80 cash flows are easily edited and reviewed using the dedicated cash flow editor screen. Entries are added, deleted and modified in a scrolling display with a touch interface unique to the iPhone.
•Business Percentages- Percent change, markup, and margin calculations.
•Statistics- Mean, standard deviation, correlation coefficient, and linear regression forecasting, weighted mean. Sample editor and plotter, forecasting using linear, log, exp or power fit.
•Conversions- 47 world currency rates and over 100 commonly used metric, english and other conversion factors used in financial, business, scientific and engineering calculations.
•Scientific- sin, cos, tan, asin, acos, atan plus the hyperbolic trig functions, conversion between rectangular and polar coordinates, conversion between degrees and radians, time functions including h.ms+ and h.ms-, log, ln, 10^x, e^x, y^x, x root of y, fraction part and integer part. Trig functions can be computed in radians, degrees or gradians.
•Worksheets-
Auto Purchase
Black-Scholes
Bond
BreakEven
Cash Flow Analysis
Currency
Date
Depreciation
Interest Conversion
Lease
Loan Amortization
Margin & Markup
Refinance
Statistics
Tip
TVM
Many of the worksheets include interactive graphs.
•Audit tape records all calculations. Tape can be mailed, texted or printed.
Discover how to use any function on the keyboard by touching the ? key then the key you want to learn about. Help screens are available for all worksheets.
Quote from a customer:
"Last week I had a meeting with my accountants and my bankers. We were working on the pro forma balance sheets and cash flows for a new project I'm working on.
They were all asking why I had switched to the iPhone for I used to be a die hard "brandX phone" fan. I said that one could do so much more. They said "yea...sure" (they were all using "brandX phones") until I started using your calculator. We were analyzing different payment and amortization schedules. They were so impressed by how easily we could figure out the amount of interest, principal and remaining loan balance for any certain period or combination of periods that in the end they were saying "I have to get me one of those".
Great product. Thanks."
Product Positioning & Context
Related Ecosystem & Alternatives
Discover adjacent products, open-source repositories, and developer tools sharing similar technical architecture.
Deep-Dive FAQs
What is 10BII Calc HD?
10BII Calc HD is a digital product or tool described as: Ernest Brock
Where did 10BII Calc HD originate?
Data for 10BII Calc HD was aggregated directly from the Apple App Store community ecosystem, representing raw developer and early-adopter sentiment.
When was 10BII Calc HD publicly launched?
The initial public indexing or launch date for 10BII Calc HD within our tracked developer communities was recorded on September 20, 2010.
How popular is 10BII Calc HD?
10BII Calc HD has achieved measurable traction, logging over 3,661 reviews and facilitating 5 recorded discussions or engagements.
Which technical categories define 10BII Calc HD?
Based on metadata extraction, 10BII Calc HD is categorized under topics such as: Finance, Business.
What are some commercial alternatives to 10BII Calc HD?
Our semantic intelligence engine identifies potential commercial alternatives in the SaaS space, such as Forgeon, which offers overlapping value propositions.
How does the creator describe 10BII Calc HD?
The original author or development team describes the product as follows: "10BII Calc HD is a business calculator featuring over 100 built-in functions for business, finance, mathematics and statistics. Easily calculate loan payments, interest rates, amortization, discoun..."
Community Voice & Feedback
I have used this wonderful app for many years now. I’m a retired professor of engineering and worked in private practice. In my work, I used this calculator as my go-to outside of my pc, and continue to use it even more for a variety of everyday projects. The available different kinds of other integrated calculators are super helpful as well.
Works great
I have used this calculator to amortize mortgage loans and compare real estate investment opportunities for years. It has always been a solid application and has performed wonderfully.
Best calculator available!
I have the calculator and the app I find myself using the app more often than the calculator do to the fact I almost always have my phone accessible. I find receiving updates and new ideas via the app extremely valuable given the pace of change in technology these days.
Great app!
Commercial Broker use this for my clients potential acquisitions. Easy to use and effective!
Always being updated for the better. Hasn’t ever crashed. I’ve been using it for many years. Keep it up!
I can’t tell you how many times a day I use this app
Thank you for producing and maintaining this app.
This app has been a game changer!
This calculator has everything for everything; is the best way to describe it. Travel currency, engineering, finance, conversion tools. Highly recommend.
Best out there. Emulates the HP 10b & 12c perfectly! Accurate & precise. A life saver for those who need the functions of an HP calculator.
I use this app same way I was thought in my CCIM class way back when. It comes in handy when you need to talk numbers in your hand held calculator is not there. They’ve got a lot of new cool things which provides graphics which is interesting.
I wish they could call it the HB 10BII instead of just 10Bll so I can find it on my phone quicker.
I wish they could call it the HB 10BII instead of just 10Bll so I can find it on my phone quicker.
I’ve had this app for several years and purchased on multiple devices. I use it everyday for business and personal purposes. I recommend anyone looking for a financial calculator for their devices to use this app.
Discovery Source
Apple App Store Aggregated via automated community intelligence tracking.
Tech Stack Dependencies
No direct open-source NPM package mentions detected in the product documentation.
Media Tractions & Mentions
No mainstream media stories specifically mentioning this product name have been intercepted yet.
Deep Research & Science
No direct peer-reviewed scientific literature matched with this product's architecture.
SaaS Metrics