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Dib2Calc vs RPN: catalog facts
Dib2Calc	RPN
Best for: Android users who want an RPN calculator with text and data functions	Best for: Android users who prefer a simple RPN calculator
Free Free and open source under GPL-3.0-or-later.	Free Free and open source under GPL-3.0-or-later.
Android	Android
Uses stack-based RPN input Includes functions for text and data structures All 3 strengths for Dib2Calc Uses stack-based RPN input Includes functions for text and data structures Can encrypt data with an access code and password	Stack-based Reverse Polish Notation Fixed-point decimal arithmetic All 3 strengths for RPN Stack-based Reverse Polish Notation Fixed-point decimal arithmetic Large touchscreen buttons
Uses RPN notation, which differs from standard calculator entry Android only	Does not include scientific functions, unit or base conversions, programmability, or memory registers
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: GPL-3.0-or-later
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Sources for Dib2Calc gitlab.com/dibdib/dib2calc Catalog checked October 8, 2026	Official website Full listing and sources Sources for RPN github.com/lpar/RPN Catalog checked October 8, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.