10BII Calc HD icon

10BII Calc HD

v3.8

Ernest Brock

3.7K ratings

Report updated Apr 6, 2026

What Is 10BII Calc HD?

10BII Calc HD is a premium financial calculator app emulating the HP 10bII hardware, targeting finance professionals and students. It distinguishes itself through high reliability, a one-time purchase model, and advanced interactive worksheets. It currently holds a strong position in the US Paid Finance charts (#59).

What users think iIndependent intel reports to help builders create better apps or enhance existing ones. Still in beta, accuracy and relevancy get better every day. For informational purposes only.

Thrilled
Reliability and Stability
Naming/Searchability... Show more

What does it look like?

What are the key features?

Specialized TVM SolverDifferentiator

Dedicated window for Time Value of Money calculations that displays all variable contents for rapid 'what if' analysis.

Electronic Audit TapeDifferentiator

Records all calculations with the ability to mail, text, or print the history.

Interactive WorksheetsDifferentiator

Pre-built templates for complex tasks like Black-Scholes, bond pricing, and cash flow analysis with interactive graphs.

Contextual Help SystemDifferentiator

Built-in user manual accessible via a '?' key for every function and worksheet.

Financial & Scientific FunctionsStandard

Comprehensive suite of business, statistical, and scientific math functions including trig and unit conversions.

What do users think? iIndependent intel reports to help builders create better apps or enhance existing ones. Still in beta, accuracy and relevancy get better every day. For informational purposes only.

Thrilled

Recent user voice shows a thrilled sentiment. Users appreciate reliability and stability and feature parity and enhancement, but report naming/searchability and missing niche functions.

What Users Love

Reliability and Stability

Hasn’t ever crashed. I’ve been using it for many years.

Works first time every time.

Feature Parity and Enhancement

Emulates the HP 10b & 12c perfectly!

This app duplicates the original 10Bii - then adds additional spreadsheet functionality.

Pain Points

Naming/Searchability

I wish they could call it the HB 10BII instead of just 10Bll so I can find it on my phone quicker.

Missing Niche Functions

The only thing I wish that it had would be a fractional calculator to allow me to use it when I am doing woodworking

High confidence · 3.7K reviews available

How is it ranked?

ChartRankChange
Paid#594
No rank history available for this chart.

What are the pros and cons?

Pros

  • Exceptional stability and reliability record
  • Deep feature set exceeding hardware capabilities
  • High user loyalty via one-time purchase model
  • Universal iPad/iPhone support with Split View

Cons

  • Poor SEO/ASO due to naming conventions
  • Lack of social media presence
  • Legacy hardware aesthetic may not appeal to younger users

What is the market outlook?

Growth Opportunities

  • Capitalize on subscription fatigue in marketing
  • Expand into niche markets like fractional math for trades
  • Improve ASO for keywords like 'HP 10bII' and 'Real Estate'

Market Threats

  • Modern UI disruptors (Solves, Tydlig)
  • Direct competitors improving their ASO/SEO
  • Platform changes favoring subscription models

Who competes with 10BII Calc HD?

The Nemesis

10bii+ Financial Calculator

10bii+ Financial Calculator

Vicinno Soft LLC

The most direct rival, offering a near-identical feature set and UI layout for the same professional finance and real estate audience.

+

The most direct rival, offering a near-identical feature set and UI layout for the same professional finance and real estate audience.

Contenders

HP 12c Financial Calculator

HP 12c Financial Calculator

MORAVIA Consulting, spol. s r.o.

While emulating a different hardware model, it targets the exact same professional user base (CFA, real estate, banking) with RPN logic.

+

While emulating a different hardware model, it targets the exact same professional user base (CFA, real estate, banking) with RPN logic.

Financial Calculator

Financial Calculator

joaquin grech

A highly popular, comprehensive financial suite that offers TVM and cash flow tools without being tied to a specific hardware layout.

+

A highly popular, comprehensive financial suite that offers TVM and cash flow tools without being tied to a specific hardware layout.

10bII Financial Calculator PRO

10bII Financial Calculator PRO

4.6 (231)

Incpt.Mobis

A top-rated alternative to the HP 12c, competing for users who prefer the classic financial calculator layout.

+

A top-rated alternative to the HP 12c, competing for users who prefer the classic financial calculator layout.

Peers

PCalc

PCalc

TLA Systems Ltd.

A high-end, feature-rich calculator for power users that includes financial functions and extensive customization.

+

A high-end, feature-rich calculator for power users that includes financial functions and extensive customization.

MathU 12D Financial Calculator

MathU 12D Financial Calculator

Creative Creek, LLC

A more advanced HP model emulator targeting high-level business professionals needing algebraic entry.

+

A more advanced HP model emulator targeting high-level business professionals needing algebraic entry.

Karl's Mortgage Calculator

Karl's Mortgage Calculator

4.4 (116)

Karl Jeacle

A deep-dive tool for loan amortization and 'what-if' scenarios, competing with the app's specialized loan worksheets.

+

A deep-dive tool for loan amortization and 'what-if' scenarios, competing with the app's specialized loan worksheets.

What are the key takeaways?

10BII Calc HD is a thrilling finance app that is a paid app. With a 4.9/5 rating from 3.7K reviews, it thrills its users from users. Users particularly appreciate reliability and stability, though naming/searchability remains a common concern.

Best for: Finance professionals, accountants, bankers, and students who require a high-precision, portable, and feature-rich alternative to traditional hardware financial calculators.

How much does it cost?

Model: paid

Tiers:
One-time purchase of $8.99

Premium, one-time purchase model targeting professionals who prefer a standalone tool over subscription-based financial apps.

iOS Version

3.8

Release Date

Sep 20, 2010

iOS Price

$8.99

Developer

Ernest Brock

Independent intel to help builders create better apps.

No publisher influence. No third-party bias. Built with objectivity in mind to serve the builder community. Reports are continuously improved and refined. For informational purposes only.

Hope this helps & keep building! · Found an error?

Cite this report

Marlvel.ai. “10BII Calc HD Intelligence Report.” Updated Apr 6, 2026. https://marlvel.ai/intel-report/finance/com-ernestbrock-calc10biihd

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