United StatesOn 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
Ideal !
I love my original HP-35. But I can’t take it everywhere so it’s great to have this simulator on my phone or iPod.
United Statesgreat memories
I saved a long time while I was in high school in the 70s to buy one of these. IIRC it was $400. I finally got it and tried every formula I knew, it was fantastic. I went on to Purdue as an EE student and used this one to win an HP45 in their annual Calculator Olympics. Then I used that one to win an HP67. The next year they banned me from entering - the best honor of all. Unfortunately I don’t have them any more but this app fills that old desire perfectly. Thanks for the memories, CuVee, very well done.
United StatesExtremeley pleasing HP-35 experience
I'm using this on an iPhone 11 Pro Max. The ergonomics of the HP-35 — e.g., the number, size, and placement of buttons — really shine with this app and this screen size. Holding up an actual HP-35 and the app, you can even appreciate the lineage which goes all the way back to Steve's cold call to Bill Hewlett.
United StatesNeeds an update
Have been using this emulator for a couple years and was really happy with it until this last iPhone software update. The display is now chopped off at the bottom so is really unusable. Hope this gets fixed.
United StatesLove this emulation!
I’m almost irrationally happy with this app. The HP-35 was my first calculator, purchased in 1975 while I was a Chem major in college. I spent the previous years using slide rules and trig table. I was fascinated by the RPN entry and how it could generate trig values on the fly. I’d still have it if it hadn’t been stolen. Sad. Because they didn’t steal the charger too. So they played with it till the batteries ran down then it became a small brick. I am a university professor now and I just used this emulation to total test scores! How fitting! Thanks so much for this emulation!!! I am grateful.
United StatesLove it !
While I love my original HP-35 (version 4), I can’t carry it everywhere, but my phone is always with me, so it is great to have a realistic simulation with me at all times.
United StatesRPN-35 SD
This is an excellent implementation of the classic, award-winning HP 35 calculator which was introduced in 1972 for $395. I love it! Well-done Cuvée! Please write an app for the HP-80 calculator.
United States
• 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
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