SFX Calc Premium vs GO-25 SciRPN Usage & Stats
SFX Calc Premium is the ads-free and no review pop-up version of SFX Calc: A calculator app designed for academic, scientific and engineering purpose. The calculator features:
1. Basic arithmetic calculation: Plus, Minus, Multiply, Divide
2. Calculation with one operand fixed as constant
3. Calculation with an non-volatile memory storage
4. Calculation with 10 volatile memory storage
5. Fraction and percentage calculation
6. Linear regression and Statistic calculation
7. Binary / Octal / Decimal / Hexadecimal calculation
8. Various functions like Trigonometric, Hyperbolic, Logarithm, Exponential, Power, Root, etc.
9. UI/UX similar to Casio scientific calculator
10. Formula calculation including Quadratic formula, Standard Normal Distribution Probability, etc.
- Apple App Store
- Paid
- Utilities
Store Rank
- -
GO-25 SciRPN simulates the venerable HP-25C Programmable Scientific Calculator from 1976. Virtually indistinguishable from the real item in operation, GO-25 is a powerful yet simple retro calculator.
• RPN (Reverse Polish Notation)
• 10-digit LED calculator display, 10-99 to 10+99
• Four stack registers with roll down
• Ten storage registers with arithmetic memory operators
• Math, trigonometric, polar/rectangular, sexagesimal/decimal, logarithmic, statistical, power and other miscellaneous functions
• Programmable, with annotated program listing, and memory for 99 program steps
• Library of Sample Programs
• Fast, slow or single step program execution
• Program import via pasteboard or from other Apps
• Program export via printer, email, pasteboard or to others Apps
• iTunes program File Sharing
• Two additional windows with views of:
◦ stack/storage registers
◦ keystroke log
◦ program source code
◦ program documentation
• Copy-from and Paste-to the calculator display
• Simple Paper Tape annotations
- Apple App Store
- Paid
- Utilities
Store Rank
- -
SFX Calc Premium VS. 
GO-25 SciRPNJanuary 16, 2025