GO-21 SciRPN
Utilities
USD 2.99
Also Included In
GO-21 SciRPN simulates the venerable HP-21 Pocket Scientific Calculator from 1975. Virtually indistinguishable from the real item in operation, GO-21 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
• One storage register with arithmetic memory operators
• Math, trigonometric, polar/rectangular, logarithmic, power and other miscellaneous functions
• One additional window with views of:
◦ stack/storage registers
◦ keystroke log
• Copy-from and Paste-to the calculator display
• Simple Paper Tape annotations
Ratings & Reviews
This app has not received enough ratings or reviews to display an overview.
- Update for iOS 18.0, iPadOS 18.0, tvOS 18.0, macOS 15.0.
The developer, Stephen Lidie, 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.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Stephen Lidie
- Size
- 11.3 MB
- Category
- Utilities
- Compatibility
Requires iOS 14.0 or later.
- iPhone
Requires iOS 14.0 or later. - iPad
Requires iPadOS 14.0 or later. - iPod touch
Requires iOS 14.0 or later. - Mac
Requires macOS 11.0 or later. - Apple Vision
Requires visionOS 1.0 or later. - Apple TV
Requires tvOS 12.0 or later.
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- Copyright (©) 2009 - 2024 Stephen O. Lidie. All rights reserved.

