---
title: "10BII Calc HD - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "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"
---

# 10BII Calc HD — United States

![10BII Calc HD App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/0a/4d/04/0a4d04db-7fd0-4def-72f7-565ee3c6e265/AppIcon-0-0-1x_U007emarketing-0-6-0-85-220.jpeg/434x0w.png)

**Developer:** [Ernest Brock](https://apptail.io/developer/ernest-brock-ZGZ) (United States)
**Category:** Finance
**Rating:** 4.9/5 (3,659 ratings)
**Price:** Free
**Bundle ID:** com.ErnestBrock.Calc10BIIHD
**Store:** Apple App Store
**Country:** United States
**Version:** 3.8 (released 2025-11-19)
**Original Release:** 2010-09-20
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id382452060)
**AppTail Page:** [https://apptail.io/app/10bii-calc-hd-odfb/united-states](https://apptail.io/app/10bii-calc-hd-odfb/united-states)

## 10BII Calc HD Description
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 &quot;what if&quot; 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 &amp; 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:  &quot;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&#039;m working on.  They were all asking why I had switched to the iPhone for I used to be a die hard &quot;brandX phone&quot; fan. I said that one could do so much more. They said &quot;yea...sure&quot; (they were all using &quot;brandX phones&quot;) 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 &quot;I have to get me one of those&quot;.   Great product. Thanks.&quot;

## 10BII Calc HD Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource115/v4/a4/e3/e9/a4e3e9de-549f-dbaa-a957-ece66a6291ec/eefb4006-3ea1-4f87-8ae6-73a57535f95a_financeKeyboard.png/1284x2778.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource115/v4/04/c5/51/04c55188-2bfa-baf1-d61a-f7f76277534f/79c15e16-aed5-47b6-a7f6-9f04d3ac5b58_ConversionAndMath.jpg/1284x2778.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource125/v4/6b/35/d2/6b35d212-b42b-c2fb-be9e-0be26729f23d/cf376df1-2fa4-4027-972b-f6415fc12164_worksheets.jpg/1284x2778.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource115/v4/e7/f8/93/e7f8934b-1f4c-91f6-c232-293ae1be1003/b139e94c-7873-4545-a578-7975039696ea_Graphs.jpg/1284x2778.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource115/v4/c3/16/ae/c316ae0b-b31f-ef19-e99f-c2704628724a/dfa293ff-dce3-4470-9309-6773aa2757ea_HelpTape.jpg/1284x2778.png)

## 10BII Calc HD Rating Breakdown in United States
- 5 stars: 3,469 (95%)
- 4 stars: 143 (4%)
- 3 stars: 27 (1%)
- 2 stars: 5 (0%)
- 1 stars: 15 (0%)

## 10BII Calc HD Reviews in United States

### ***** "HP 10B Calculator"
The HP 10B calculator has been my favorite since college and all through my business career. I converted to this IPhone version years ago. I think it’s actually better than the real thing and certainly more convenient.
-- Brian retired, 2024-12-29

### ***** "Best app"
This is by far the longest and most used app Ive had on my phones. Luckily I never learned on a physical 10BII cause I found out storing the inputted terms to constantly see is NOT standard on the old physical ones haha. I could never use a physical after learning on this app.
-- Vnethercott, 2024-11-30

### ***** "Excellent business calculator app"
Have been using for many years and this is my go-to calculator for daily business.
-- ToadF16c, 2024-10-16

### ***** "Daily calculator Must have"
I use this daily for my job. I love it!! I have to do a lot of calculations to confirm correct numbers on contracts. I can’t live without it!!
-- Angrymomlv, 2024-09-27

### ***** "No need to have one in every room."
I used to have to have a financial calculator in every room. At the slightest sign of trouble, I would stop, drop, and roll, pull open the drawer and be ready to calculate, present value, and have amortization schedules. But now I don’t have to do that! It’s on my iPhone.
-- Brew😄, 2024-09-14

### ***** "Front screen app!"
The front screen of your phone is the most valuable real estate and this app has been on my front screen since purchased years ago. Excellent interpretation of the physical calculator, always kept up to date by the developer, and just simply works! If you have any hands on experience with the 10BII, you will not be disappointed.
-- TKoren, 2024-09-11

### ***** "Great calculator!"
Very kewl app for you phone with financial calculator / TVM ability.  My go to even for basic math functions.
-- Trenton Daily, 2024-08-19

### ***** "Great App - Easy to Use"
Most app used on my phone!
-- MattisTeam, 2024-08-03

### ***** "Absolutely fantastic"
This is a fantastic way to do financial calculations on the go!  I often show friends compound growth calculations (index fund investing) that blow their minds and start them on a path of investing and financial security. Thanks so much for creating an awesome app.
-- Dreone23, 2024-07-20

### ***** "Great Calculator App"
I got rid of my hand held 10BII many years ago and have only used the App since. works great, never have to worry about losing my calculator or the batteries running out. I forever have it on my phone.
-- R2D2 Math, 2024-07-11

### ****- "perfect"
when you need info. and dont need hassle of going to a bank
-- help_pdf, 2024-06-18

### ***** "10bll HD"
Thank you for keeping this app updated. I use this app for all of my classes. I have the physical 10bll calculator but I prefer the app.
I prefer the app to the physical calculator. I used the calculator for my accounting classes and I still use it today. Thank you!
-- jtaylor72, 2024-05-27

### ***** "Great App!"
This a great app!  It does just what I need.  I have had it several years and it keeps me from having to carry my old HP 10BII.  Love having it on my phone and iPad.

Thanks for the great, consistent updates!
-- wfm360, 2024-04-14

### ***** "Great features, love this calculator app"
App works flawlessly and developer keeps it up to date with tweaks and fixes.
-- adammai, 2024-04-06

### *---- "Deserves ZERO STAR"
If anyone out there to try the app, forget about getting a refund. I have mistakenly bought multiple calculator and for my school i only needed the one from TA. I have asked for return/refund on this, the same day of installation, i got a straight NO, even when the other purchase was made through same seller/developer, can you even imagine? This was my worst purchase ever, i will not recommend this, as you will not get any support after you buy it. Thats it, money gone to drain!
-- ROCKY8990, 2024-02-29

### ***** "Great App"
Provides needed information quickly with ease.
-- LP -, 2024-02-15

### ***** "BKM"
Thanks
-- bkmcfp, 2024-02-06

### ****- "Great app."
Couldn’t live without it!
-- Cvimc10593, 2024-02-02

### ***** "Staple of my daily life"
Anything else in my life might change at any moment, but this app is rock solid.  And even gets great updates!  Thank you!
-- Lowry Hill, 2024-02-02

### ***** "Outstanding"
Best financial calculator by Far!
-- Sinerian 94, 2024-02-01

[View all 10BII Calc HD reviews and detailed analytics on AppTail](https://apptail.io/account/signup?utm_campaign=ai-crawl&amp;utm_content=reviews)


## 10BII Calc HD Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Paid | Norway | Finance | #6 |
| Top Paid | South Africa | Finance | #9 |
| Top Paid | Switzerland | Finance | #15 |
| Top Paid | Ecuador | Finance | #19 |
| Top Paid | Chile | Finance | #20 |
| Top Paid | Japan | Finance | #25 |
| Top Paid | Mexico | Finance | #25 |
| Top Paid | Malaysia | Finance | #26 |
| Top Paid | Peru | Finance | #29 |
| Top Grossing | New Zealand | Finance | #30 |
| Top Paid | New Zealand | Finance | #31 |
| Top Paid | Colombia | Finance | #32 |
| Top Paid | South Korea | Finance | #39 |
| Top Paid | Vietnam | Finance | #44 |
| Top Paid | Canada | Finance | #45 |
| Top Paid | Taiwan | Finance | #47 |
| Top Paid | Australia | Finance | #51 |
| Top Paid | Brazil | Finance | #54 |
| Top Paid | Hong Kong SAR China | Finance | #54 |
| Top Paid | United Arab Emirates | Finance | #58 |
| Top Paid | Egypt | Finance | #62 |
| Top Paid | Singapore | Finance | #66 |
| Top Paid | Russia | Finance | #68 |
| Top Paid | Dominican Republic | Finance | #71 |
| Top Paid | Kuwait | Finance | #78 |
| Top Paid | United States | Finance | #81 |
| Top Paid | China | Finance | #91 |
| Top Paid | Indonesia | Finance | #96 |
| Top Paid | Ukraine | Finance | #96 |
| Top Paid | Türkiye | Finance | #102 |
| Top Paid | United Kingdom | Finance | #108 |
| Top Paid | Thailand | Finance | #116 |
| Top Paid | Kazakhstan | Finance | #118 |
| Top Paid | Azerbaijan | Finance | #118 |
| Top Paid | Philippines | Finance | #128 |
| Top Paid | India | Finance | #135 |
| Top Paid | Israel | Finance | #149 |
| Top Paid | Pakistan | Finance | #179 |
| Top Paid | Nigeria | Finance | #182 |
| Top Paid | South Africa | Overall | #369 |

## 10BII Calc HD Discovered Keywords
- 10bii financial calculator
- 10bii
- ba 2 plus
- 10bii calc hd
- 12calc
- 12 calculator

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## 10BII Calc HD Available In
- [United States](https://apptail.io/app/10bii-calc-hd-odfb/united-states)
- [Canada](https://apptail.io/app/10bii-calc-hd-odfb/canada)
- [South Africa](https://apptail.io/app/10bii-calc-hd-odfb/south-africa)
- [Switzerland](https://apptail.io/app/10bii-calc-hd-odfb/switzerland)
- [Norway](https://apptail.io/app/10bii-calc-hd-odfb/norway)
- [Australia](https://apptail.io/app/10bii-calc-hd-odfb/australia)
- [Mexico](https://apptail.io/app/10bii-calc-hd-odfb/mexico)
- [Japan](https://apptail.io/app/10bii-calc-hd-odfb/japan)
- [Chile](https://apptail.io/app/10bii-calc-hd-odfb/chile)
- [Brazil](https://apptail.io/app/10bii-calc-hd-odfb/brazil)
- [United Kingdom](https://apptail.io/app/10bii-calc-hd-odfb/united-kingdom)
- [Malaysia](https://apptail.io/app/10bii-calc-hd-odfb/malaysia)
- [New Zealand](https://apptail.io/app/10bii-calc-hd-odfb/new-zealand)
- [Taiwan](https://apptail.io/app/10bii-calc-hd-odfb/taiwan)
- [Ecuador](https://apptail.io/app/10bii-calc-hd-odfb/ecuador)
- [Colombia](https://apptail.io/app/10bii-calc-hd-odfb/colombia)
- [Hong Kong SAR China](https://apptail.io/app/10bii-calc-hd-odfb/hong-kong)
- [South Korea](https://apptail.io/app/10bii-calc-hd-odfb/south-korea)
- [Singapore](https://apptail.io/app/10bii-calc-hd-odfb/singapore)
- [Peru](https://apptail.io/app/10bii-calc-hd-odfb/peru)
- [Türkiye](https://apptail.io/app/10bii-calc-hd-odfb/turkey)
- [China](https://apptail.io/app/10bii-calc-hd-odfb/china)
- [Dominican Republic](https://apptail.io/app/10bii-calc-hd-odfb/dominican-republic)
- [Indonesia](https://apptail.io/app/10bii-calc-hd-odfb/indonesia)
- [Russia](https://apptail.io/app/10bii-calc-hd-odfb/russia)
- [Vietnam](https://apptail.io/app/10bii-calc-hd-odfb/vietnam)
- [Philippines](https://apptail.io/app/10bii-calc-hd-odfb/philippines)
- [India](https://apptail.io/app/10bii-calc-hd-odfb/india)
- [Kenya](https://apptail.io/app/10bii-calc-hd-odfb/kenya)
- [Pakistan](https://apptail.io/app/10bii-calc-hd-odfb/pakistan)
- [Thailand](https://apptail.io/app/10bii-calc-hd-odfb/thailand)
- [Argentina](https://apptail.io/app/10bii-calc-hd-odfb/argentina)
- [Madagascar](https://apptail.io/app/10bii-calc-hd-odfb/madagascar)
- [Mauritius](https://apptail.io/app/10bii-calc-hd-odfb/mauritius)
- [Egypt](https://apptail.io/app/10bii-calc-hd-odfb/egypt)
- [Algeria](https://apptail.io/app/10bii-calc-hd-odfb/algeria)
- [Nigeria](https://apptail.io/app/10bii-calc-hd-odfb/nigeria)
- [Belarus](https://apptail.io/app/10bii-calc-hd-odfb/belarus)
- [Brunei](https://apptail.io/app/10bii-calc-hd-odfb/brunei)
- [Bahrain](https://apptail.io/app/10bii-calc-hd-odfb/bahrain)
- [Kuwait](https://apptail.io/app/10bii-calc-hd-odfb/kuwait)
- [Uzbekistan](https://apptail.io/app/10bii-calc-hd-odfb/uzbekistan)
- [Armenia](https://apptail.io/app/10bii-calc-hd-odfb/armenia)
- [Saudi Arabia](https://apptail.io/app/10bii-calc-hd-odfb/saudi-arabia)
- [Azerbaijan](https://apptail.io/app/10bii-calc-hd-odfb/azerbaijan)
- [Senegal](https://apptail.io/app/10bii-calc-hd-odfb/senegal)
- [Israel](https://apptail.io/app/10bii-calc-hd-odfb/israel)
- [Tunisia](https://apptail.io/app/10bii-calc-hd-odfb/tunisia)
- [United Arab Emirates](https://apptail.io/app/10bii-calc-hd-odfb/united-arab-emirates)
- [Iceland](https://apptail.io/app/10bii-calc-hd-odfb/iceland)
- [Ukraine](https://apptail.io/app/10bii-calc-hd-odfb/ukraine)
- [Uganda](https://apptail.io/app/10bii-calc-hd-odfb/uganda)
- [Angola](https://apptail.io/app/10bii-calc-hd-odfb/angola)
- [Kazakhstan](https://apptail.io/app/10bii-calc-hd-odfb/kazakhstan)
- [Lebanon](https://apptail.io/app/10bii-calc-hd-odfb/lebanon)
- [Sri Lanka](https://apptail.io/app/10bii-calc-hd-odfb/sri-lanka)

---

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