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*** AVAILABLE FOR A LIMITED PERIOD, DON'T MISS OUT! ***

i41 is based on the same calculator core as the highly rated i41CX+ but with its keyboard pre-configured to meet casual and moderate RPN scientific calculations and without i41CX+'s persistent state. i41 is a show-case of the power and flexibility of its fully featured parent, i41CX+. Even without the advanced features of i41CX+, i41 is a powerful RPN calculator for the iPhone and iPod touch that will meet many users' calculation needs in a comfortable portrait form factor.

FEATURES:
• RPN logic with 4 element stack
• Arithmetic, trigonometric, mathematical, time, and statistical functions
• 52 main memory registers for temporary storage of data
• Statistical functions (MEAN, SDEV)
• Time functions (HMS, HR, HMS+, HMS-)
• 12 character display
• Option to hide mini stack (X, Y, Z, LastX) display and use the iPhone/iPod touch status bar instead
• Optional use of comma for decimal point and period for thousands delimiter (e.g. for European users)
• User adjustable feedback sounds volume
• Extremely responsive and animated key clicks with optional glow feedback effect
• Beautiful and clean user interface optimized for the iPhone and iPod touch portrait mode screen aspect ratio and to maximize the keypad area while still providing for a full featured scientific keypad

NOTE: Because i41 does not have a persistent state, the FIX/SCI/ENG setting is reset to 4 decimal places every time the application is launched. Data register contents are also reset accordingly. If persistent state is important to you, please consider getting i41CX+ instead.

******* NOTE TO 1G iPOD TOUCH USERS *******
Key click sounds, are only audible when played back through the headphones. To mitigate this limitation, i41 supports an option to enable a "glow" key press feedback effect.

Latest Activity

• 01/06/2009 New App Added to the App Store Get App

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