10bii+ Financial Calculator
by Vicinno Soft LLC
- Finance
- Paid
- Zombie
- Rating
- 4.1
- 39 ratings · US storefront
- Top 85%among 84 Finance apps
- Last update
- Nov 2, 2020
- Version 2.56
- Size
- 5 MB
- Category
- Finance
- Tracked since
- Oct 9, 2026
Estimated revenue
A model estimate with a likely range, not a reported figure.
No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.
How this estimate is made
Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.
Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.
Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.
Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.
Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.
Full methodScreenshots
As shown on the App Store listing.
About this app
Text from the App Store listing.
It is a powerful emulator for HP 10bII Financial Calculator on iPhone, iPad, and Apple Watch, which supports all functions of HP 10bII Financial Calculator and beyond with many intuitive worksheets.
With more than 120 functions for financial analysis, business, statistics, and mathematics, and modeled on the popular HP 10bII Financial Calculator, 10bii Financial Calculator app combines precise mathematics, intuitive display, and ease-of-use in one package. It allows you to easily calculate time value of money, amortization, investment value, mortgage and loan payments, interest rates, and more using powerful and intuitive worksheets.
* Highlight Features *
- Time Value of Money TVM
- Amortization
- Cash flow analysis: Net Present Value (NPV), and Internal Rate of Return (IRR)
- Mortgage and Loan payment calculation
- Business percentage calculation like Cost, Price, Margin, and Markup
- Interest Rate Conversion between Nominal and Annual Effective Interest Rates
- Statistical analysis
- 10 Memories for storage.
- Choice of Chain and Algebraic Calculation Mode
- Scientific capabilities, including log, exponent, power etc.
- Key click sound feedback
- N, I/YR, PV, PMT and FV values displayed right above buttons
- Easy data entry in Cash Flow, Stats, TVM calculation with spreadsheet-like worksheets
- One-click access to user manual and customer support within the app
- Easy setting up number format, decimal point, calculation mode (Alg or Chain), and so on via in-app settings
- More ...
** Support **
Feel free to email us at [email protected] whenever you need help.
** Stay tuned **
Like us: www.facebook.com/vicinno
Follow us: www.twitter.com/vicinno
What’s new
Release notes for the latest version, as written by the developer.
bugfix for the amortization worksheet.
Rank history
Daily position in the Switzerland charts. #1 is at the top.
- Best rank
- #1
- Current rank
- #1
- Days charting
- 7 of 7
On the charts today
Small & simple score
How realistic it is for a small team to build something like this.
78/100
Not flagged as small & simple
- Developer size10% · 25
Developer: 5 apps on the charts
- Audience size100% · 20
Ratings: 39
- App size100% · 10
Size: 5 MB
- Price model100% · 15
Price model: paid
- Demand proof100% · 30
Best rank #1, 67 countries
An indicator, not a fact. We can't see team size. Calculated Oct 24, 2026 · method i2
How the score worksVersion history
- 2.56LatestReleased Nov 2, 2020