Apps Like RPN-45 HD for iPhone and iPad
Calculate like a scientific calculator
Simulate the HP-45 scientific calculator with photo-realistic visuals and animated keys. Perform all original functions and operations. Access a secret timer for 12-hour or 100-hour intervals. Switch to Super-45 mode for enhanced capabilities.
RPN-45 HD screenshots
Ranked alternatives
Showing 241–260 of 1,000 ranked alternatives.
IntCalc
James Preston
Calculate in any number base
An RPN calculator with stack display and base conversion. Users can switch between binary, octal, decimal, and hexadecimal modes. Each stack element can be viewed in any base or as ASCII.
Score Count
Marek Lenart
Track scores for any game
The app tracks scores for card and board games. It allows adding multiple players, choosing score entry modes, and selecting board layouts.
Analog Clock & Timer
建瑛 贾
Set alarms, track time, manage schedules
Track time with a retro face. Set alarms and timers. Adjust for 12-hour or 24-hour format. Customize watch faces with vintage designs. Sync with smart devices for notifications.
Calculator + Account Journal
妙英 张
Edit equations, save calculations, share history
Perform calculations with basic arithmetic operations. Save equations as entries. View and share calculation history. Edit equations and manage memory banks. Adjust decimal places for precision.
4917emu Micro Processor Emu
Michael Mustun
Learn computer coding and microprocessor basics.
The app teaches basic computer principles and how microprocessors function. It simulates the 4917emu, a 4-bit microprocessor with 16 memory locations and 4 registers used in a university course.
LXVII
Nick Tamburri
HP-67 RPN calculator emulator for OS X.
The app emulates the HP-67 RPN programmable calculator. It offers multiple active calculators, full memory visibility, and a paper tape register with various modes.
LED Banner Scroll Display Text
颖欣 李
Create rolling subtitles on the go
Create dynamic LED-style banners with customizable fonts and sizes. Adjust rolling speed and scrolling for events, promotions, or messaging. Share content directly to social media or broadcast in real-time.
iMath
Rafael Cimatti
Learn math with this app.
The app calculates quadratic equations, Pythagoras theorem, and logarithm equations. It shows formulas used to help users learn and features an easy-to-use interface.
How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.