iPhone, iPod touch, and iPad Apps Search Engine
iPhone Apps Users Community
Advanced search | Example: action games
iPhone apps

GO-21 SciRPN

GO-21 SciRPN
  • #: 228885
  • Price: $0.99 In Apple Store
  • Category: Utilities
  • Updated: 2016-12-13
  • Current Version: 4.6
  • 4.6
  • Size: 6.80 MB
  • Language: English
  • Seller: Technology Man IR
  • Requirements: Compatible with iPhone, iPod touch, and iPad. Requires iOS 3.0 or later
  • Copyright (©) 2009 - 2011 Stephen O. Lidie, All rights reserved.
  •  Add to Favorite apps



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.

GO-21 combines the classic behavior of the HP-21 with modern iPhone capabilities like key click sounds, visual touch feedback, persistent stack, memory and display format, and help information.

• Requires iOS 8.0 or later


• Copy / Paste

• Shake to clear X

• Swipe gestures that roll and display the stack

• Addition, subtraction, multiplication, division

• Trigonometric functions : sin, cos, tan, sin⁻¹, cos⁻¹, tan⁻¹, degrees or radians

• Rectangular/polar coordinate conversion

• Logarithmic functions : log, 10x, ln, ex

• Other functions : Yx, 1/x, √x, π

• Display : LED, 10 significant digits (8 + 2 digit exponent in scientific notation), 10-99 to 10+99

• Memory : 4 register stack, stack roll down, X-Y interchange, manual memory with register math

• floating stack and memory window

What's New in Version 4.6

- Add a third Key Tap Sound: Brief Tick.
- Update for iOS 10.1.1.
- GO-21 now requires that your iDevice run an iOS version >= 8.

View iPhone screenshots | View iPad screenshots

iPhone Screenshots

GO-21 SciRPN iPhone Screenshot 1
GO-21 SciRPN iPhone Screenshot 2
GO-21 SciRPN iPhone Screenshot 3
GO-21 SciRPN iPhone Screenshot 4
GO-21 SciRPN iPhone Screenshot 5

iPad Screenshots

GO-21 SciRPN iPad Screenshot 1
GO-21 SciRPN iPad Screenshot 2

Video Reviews

No video review.

Customer reviews

Write a Review

Be the first to review this app. Write a Review


Ask a question

Be the first question this app.

Users Community

+ Connect to community

The information may be outdated (2017-03-08 19:58:17). For actual information go to iTunes

Mobile Version
iApps4you.com - is iPhone, iPod touch, and iPad apps search engine and not been authorized, sponsored or approved by Apple Inc.
Copyright © 2017 iApps4you.com.
36 ms.