RPN-35 SD
First scientific calculator!
$1.99
2.1for iPhone, iPod touch
9.1
11 Ratings
CuVee Software
Developer
14.6 MB
Size
Sep 22, 2022
Update Date
Productivity
Category
4+
Age Rating
Age Rating
RPN-35 SD Screenshots
About RPN-35 SD
On January 4, 1972, Hewlett-Packard announced the HP-35, world's first scientific calculator small enough to fit in a pocket - more precisely, Bill Hewlett's shirt-pocket. The HP-35 was an immediate hit with students, engineers, and scientists. Despite its steep price of $395 (more than $2,200 today), it sold ten times better than anticipated in the first year.
Experience this unique calculator that won HP the prestigious "IEEE Milestone in Electrical Engineering and Computing" in 2009.
Features:
• Photo-realistic look-and-feel
• Three skins: version 1, versions 2 & 3 (1973) and final version 4 (1974)
• Vintage mode
• Enhanced memory mode
• Key-click and key-glow, both optional
• Swipe left across display to correct wrong number entries
• Cut/copy/paste display value
• Display stack registers and all memory registers
• All decimal points but one light when iPhone battery charge drops below 5%
Vintage mode
In this mode, peculiarities of a real HP-35 are simulated:
- original speed of operation
- stack register Z copied to T on trig functions
- leading zeros may be entered
- a negative number may be entered by pressing CHS before or after the number
- a keyboard entry or RCL immediately following STO does not raise the stack
- for version 1 only: a number of known arithmetic bugs
Enhanced memory mode
- non-volatile stack and registers
- use registers 1 through 9 with HP-45-like register arithmetic
- register 0 works as LastX register
Experience this unique calculator that won HP the prestigious "IEEE Milestone in Electrical Engineering and Computing" in 2009.
Features:
• Photo-realistic look-and-feel
• Three skins: version 1, versions 2 & 3 (1973) and final version 4 (1974)
• Vintage mode
• Enhanced memory mode
• Key-click and key-glow, both optional
• Swipe left across display to correct wrong number entries
• Cut/copy/paste display value
• Display stack registers and all memory registers
• All decimal points but one light when iPhone battery charge drops below 5%
Vintage mode
In this mode, peculiarities of a real HP-35 are simulated:
- original speed of operation
- stack register Z copied to T on trig functions
- leading zeros may be entered
- a negative number may be entered by pressing CHS before or after the number
- a keyboard entry or RCL immediately following STO does not raise the stack
- for version 1 only: a number of known arithmetic bugs
Enhanced memory mode
- non-volatile stack and registers
- use registers 1 through 9 with HP-45-like register arithmetic
- register 0 works as LastX register
Show More
What's New in the Latest Version 2.1
Last updated on Sep 22, 2022
Old Versions
• Haptics
– Set the haptic feedback level in the calculator's settings.
– „Sounds & Haptics“ / „System Haptics“ must be on in the iPhone's settings.
– Note that iPads have no haptics engine.
• Optimized Settings View for devices with Home button
• Compatibility with iPhone 14 Pro
– Set the haptic feedback level in the calculator's settings.
– „Sounds & Haptics“ / „System Haptics“ must be on in the iPhone's settings.
– Note that iPads have no haptics engine.
• Optimized Settings View for devices with Home button
• Compatibility with iPhone 14 Pro
Show More
Version History
2.1
Sep 22, 2022
• Haptics
– Set the haptic feedback level in the calculator's settings.
– „Sounds & Haptics“ / „System Haptics“ must be on in the iPhone's settings.
– Note that iPads have no haptics engine.
• Optimized Settings View for devices with Home button
• Compatibility with iPhone 14 Pro
– Set the haptic feedback level in the calculator's settings.
– „Sounds & Haptics“ / „System Haptics“ must be on in the iPhone's settings.
– Note that iPads have no haptics engine.
• Optimized Settings View for devices with Home button
• Compatibility with iPhone 14 Pro
2.0.2
Nov 5, 2020
Compatibility with iPhone 12
2.0.1
Mar 18, 2020
Fixed bug:
Calculations in scientific mode in regions not using "E" as exponent symbol (i.e. Sweden, Australia, Slovenia) would cause a crash.
Calculations in scientific mode in regions not using "E" as exponent symbol (i.e. Sweden, Australia, Slovenia) would cause a crash.
2.0
Jan 25, 2020
• If RPN-35 is set to HP-35 version v1 ("Red dot") and Vintage Mode is on:
1. Simulation of (rather weird) EEX key behavior, i.e. exponent not shown initially, CHS ignored after digit entry, no CHS toggling
2. Simulation of additional known calculation bugs. See website for details.
• HP-35 version 4 shows correct logo and label at the bottom (on applicable iOS devices.)
• Support for iOS 13 Dark Mode
RPN-35 SD now requires iOS 11 or later.
1. Simulation of (rather weird) EEX key behavior, i.e. exponent not shown initially, CHS ignored after digit entry, no CHS toggling
2. Simulation of additional known calculation bugs. See website for details.
• HP-35 version 4 shows correct logo and label at the bottom (on applicable iOS devices.)
• Support for iOS 13 Dark Mode
RPN-35 SD now requires iOS 11 or later.
1.7
Aug 13, 2019
Emulation of known calculation bugs found in early HP-35 models (only if RPN-35 is set to HP-35 version v1 and Vintage Mode is on.)
See website for details.
See website for details.
1.6
Jan 7, 2019
• Changed "Undo digit" sound to same as found on other CuVee calculators
• Many under-the-hood refinements
• Support of late 2018 iPhones
• Many under-the-hood refinements
• Support of late 2018 iPhones
1.5.2
Nov 6, 2017
• Values containing blanks may be pasted into display
1.5.1
Oct 30, 2017
• Improved compatibility with iPhone X
Bug fix:
• Incorrect app icon shown when installed on iPad
Bug fix:
• Incorrect app icon shown when installed on iPad
1.5
Oct 24, 2017
• Improved trig functions for extremely small angles
• Support for iOS 11 and iPhone X
• Support for iOS 11 and iPhone X
1.4.1
Jan 19, 2017
• Fixed sin(90°) sign error
1.4
Oct 2, 2016
This update requires iOS 8 or later.
• Improved results for SIN, COS, TAN with very large arguments
• Decimal addition/subtraction for higher precision
• Calculator sounds mix with background audio and have their own volume control
• Improved results for SIN, COS, TAN with very large arguments
• Decimal addition/subtraction for higher precision
• Calculator sounds mix with background audio and have their own volume control
1.3.1
Apr 7, 2016
• Fixes an issue where a result rounded up to 1, e.g. cos(0.0001), would be displayed as a decimal point only.
1.3
Sep 2, 2015
• If audio is playing on start-up, RPN-35 SD will not produce any sounds
1.2
May 12, 2015
• Added info about how to access settings screen
• Fixed non-volatile memory not working
• Fixed non-volatile memory not working
1.1
Apr 8, 2015
• HP-35 version 1 (with red dot) added
• For the purists: Settings and Info buttons may be set to invisible
• Low-battery situation shows one decimal point unlit, as depicted in the HP-35 User's Manual
• For the purists: Settings and Info buttons may be set to invisible
• Low-battery situation shows one decimal point unlit, as depicted in the HP-35 User's Manual
1.0
Jan 18, 2015
RPN-35 SD FAQ
Click here to learn how to download RPN-35 SD in restricted country or region.
Check the following list to see the minimum requirements of RPN-35 SD.
iPhone
Requires iOS 11.0 or later.
iPod touch
Requires iOS 11.0 or later.
RPN-35 SD supports English
