RB 20c Financial Calculator

12C-style RPN: loans, NPV, IRR

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

RPN financial calculator, 12C style. Export amortization and cash flow as PDF or Excel and share a summary in one tap. RB 20c is a complete RPN financial calculator, compatible with the functions and keyboard of the classic HP 12C, using the same logic accountants and finance professionals have relied on for decades. Free version: • Four-level RPN stack, arithmetic, percentage, power and root • Memory registers (STO and RCL) • Time value of money: n, i, PV, PMT and FV • Simple interest and period-by-period amortization (AMORT) • Cash flow with CF0, CFj and Nj, NPV and IRR • Dates, day counts and date differences • Depreciation (SL, SOYD, DB), bond price and yield • Statistics: means, standard deviation and regression • Continuous memory: turn it off with the ON key and your calculation is kept • Built-in options manual Pro version (one-time purchase, no subscription): • Text summary of the calculation, with and without fees, ready to share by email or messaging • Period-by-period amortization table as PDF or Excel • Cash flow with NPV and IRR as PDF or Excel • History of your latest calculations, with date and time • Digital panel showing n, i, PV, PMT and FV next to the display • Key-press vibration Works fully offline. No ads, no account required. Designed for landscape use. HP and HP 12C are trademarks of HP Inc. RB 20c is an independent app, not affiliated with HP.

Ratings & Reviews

  • This app hasn’t received enough ratings or reviews to display an overview.

• The calculator now keeps your values when you turn it off (continuous memory). • New built-in Options manual. • PDF export for amortization and cash flow. • Stability fixes and improvements, including on iPad.

Version 1.0.8

The developer, Rodrigo Henrique Silva Barbosa, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    Rodrigo Henrique Silva Barbosa
    Size
    37.2 MB
    Category
    Finance
    Compatibility
    Requires iOS 15.0 or later.
    • iPhone
      Requires iOS 15.0 or later.
    • iPad
      Requires iPadOS 15.0 or later.
    • iPod touch
      Requires iOS 15.0 or later.
    • Mac
      Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
    Languages
    English
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    © 2026 RSB Digital
  • Privacy Policy

    • You Might Also Like