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 341–360 of 1,000 ranked alternatives.
iformula pro
Tobias Werner
Solve equations and access formulas
Solve complex math problems with step-by-step guidance. Access a library of formulas and equations. Create and save custom notes. Export solutions as PDF. Share calculations with others. Sync across devices.
Inches to mm converter
Intemodino Group s.r.o.
Convert units with a flip button
Convert measurements between and millimeters with a flip button for quick unit switching. Support fractions and display results in both decimal and fractional forms.
LineEngraver Photo Editor
Viktor Goltvyanytsya
Edit and view greyscale raw photos
Edit and enhance grayscale photos with 20 predefined presets and custom adjustments. Apply vignette effects and modify color channels. Save personalized presets. View and share monochrome images directly.
Math Derivatives
Electronial
View derivative formulas and rules
Calculate using a list of common formulas. Tap a formula to view its derivative. Access rules for basic, exponential, logarithmic, trigonometric, and hyperbolic functions. Display all formulas at once. Upgrade to pro for additional formulas.
Binary-Clock
Wyllys Ingersoll
Set time with buttons
Display time using LED-style buttons representing values for hours, minutes, and seconds. Toggle between 24-hour and 12-hour modes. Set alarms, use countdown timers, and choose beep sounds. Customize button colors for visibility.
Fraction Help Calculator
Armchair Engineering
Solve fractions and view steps
Solve equations with addition, subtraction, multiplication, and division. View step-by-step working to understand solutions. Handle mixed and partial fractions. Convert between decimals and fractions. Find factors of numbers or common factors.
Oscilyzer
Stefan Robl
Analyze, visualize, and synthesize audio signals
Oscilloscope mode displays real-time waveforms with automatic and single-shot triggering. Measures frequency, period, and amplitude automatically or manually. Spectrum analyzer mode identifies frequency components and amplitude levels.
How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.