RPN-55 SD app icon

Apps Like RPN-55 SD for iPhone and iPad

by Willy Kunz★ 5.08 ratingsProductivity$1.99Data updated 2026-10-11

RPN-55 SD screenshots

Ranked alternatives

Showing 81–100 of 1,000 ranked alternatives.

  1. Studyable: AI Study Help app icon

    Studyable: AI Study Help

    Inter Platforms Pty Ltd

    Solve questions and chat with AI tutor

    Allows users to take photos of math problems and receive step-by-step solutions. It can plot graphs of equations. Users can chat with an AI tutor for homework and assignment .

    ★ 4.71,103 ratingsEducationFreeData updated 2026-09-06
  2. MaxiCalc Free: Big Retro LCD Basic Desk Calculator app icon

    MaxiCalc Free: Big Retro LCD Basic Desk Calculator

    Fernando Sciessere

    A powerful calculator for all needs.

    The app offers two modes: portrait for basic calculations and landscape for scientific functions. Users can track entries with multiple tapes and use memory slots for complex calculations.

    ★ 4.7161 ratingsUtilitiesFreeData updated 2026-10-15
  1. Calculator SC-323PU app icon

    Calculator SC-323PU

    Thomas Oellinger

    Calculate, edit, and track equations

    The provides scientific calculations, unit conversion, and logic-based computations. Users can switch between modes. It includes a built-in manual for operation guidance. Perform n-base conversions and unit-based calculations.

    ★ 4.7118 ratingsUtilities$3.99Data updated 2026-09-08
  2. MathU RPN Calc app icon

    MathU RPN Calc

    Creative Creek, LLC

    Calculate with RPN and 96 functions

    Perform complex calculations using Reverse Polish Notation. Access over 96 functions including financial, scientific, and engineering operations. Store and recall values. Switch between decimal and hexadecimal modes.

    ★ 5.0135 ratingsFinance$24.99Data updated 2026-09-08
  3. Complex RPN Calculator app icon

    Complex RPN Calculator

    John Coddington

    Scientific RPN calculator with complex numbers.

    The app is a scientific RPN calculator. It has a four-level stack and complex numbers as its native number type.

    ★ 3.924 ratingsUtilitiesFreeData updated 2026-09-10
  4. PepCalc: Peptide Calculator app icon

    PepCalc: Peptide Calculator

    Awesome Labs LLC

    Calculate reconstitution amounts

    Calculate reconstitution volumes by selecting units, tick marks, and quantities. Input sterile or bacteriostatic water volume and desired amount. Choose instrument type for accurate results. Adjust settings for precise calculations.

    ★ 4.8951 ratingsHealth & Fitness$9.99Data updated 2026-10-16
  5. Desmos Scientific Calculator app icon

    Desmos Scientific Calculator

    Desmos, Inc.

    Calculate, graph, and explore math functions

    Perform complex calculations with trigonometric, statistical, and combinatorial functions. Define and evaluate custom equations. Graph mathematical expressions and explore multiple variables. Save and reuse calculations for future use.

    ★ 4.3332 ratingsEducationFreeData updated 2026-09-12
  6. CalcMadeEasy Pro app icon

    CalcMadeEasy Pro

    Lalit Patil

    Calculate loans, convert units, take notes

    Perform financial calculations with tools for loan analysis, amortization schedules, and refinance savings estimation. Convert units across multiple categories. Automatically generate notes and track expenses for budgeting and planning.

    ★ 4.581 ratingsFinance$1.99Data updated 2026-10-06
  7. Calculator Advanced app icon

    Calculator Advanced

    Mert Can Kus

    Save formulas, enter variables, calculate results

    Allows users to save formulas for repeated use. Enter variables to recalculate results without rewriting formulas. Supports trigonometric functions, logarithms, factorials, and permutations. View saved formulas and variables for easy access.

    ★ 4.496 ratingsProductivity$0.99Data updated 2026-09-06
  8. Gymboss Interval Timer app icon

    Gymboss Interval Timer

    Gymboss LLC

    Programmable timer for any workout.

    The app allows users to create custom workout timers with unlimited intervals and up to 99 repeats. It offers visual, audible, and vibrate alarms, music access, and the ability to save programs to iCloud Drive.

    ★ 4.7799 ratingsHealth & FitnessFreeData updated 2026-09-26
  9. RPN-35 SD app icon

    RPN-35 SD

    Willy Kunz

    Calculate, organize, and manage tasks

    Calculate mathematical expressions with scientific functions, trigonometry, and logarithms. Store and recall values. Adjust display settings for different modes. Export calculation history and share results via email or cloud storage.

    ★ 4.414 ratingsProductivity$1.99Data updated 2026-09-09
  10. All in One Calculator app icon

    All in One Calculator

    Ramon Rivas

    Calculate, edit, and track equations

    Allows users to perform basic and advanced mathematical operations. It includes a sidebar and tab bar for navigation and data sharing. Users can drag and drop entries to create new windows or use the context menu to generate new windows.

    ★ 4.6185 ratingsProductivityFreeData updated 2026-09-08
  11. Unit Converter Calculator Pro app icon

    Unit Converter Calculator Pro

    Rome Rock LLC

    Convert units between metric and imperial systems

    Convert units between metric and imperial systems including area, distance, speed, temperature, volume, time, weight, energy, and power. Calculate area, speed, distance, and volume with supported units. Switch between units quickly and accurately.

    ★ 4.7985 ratingsUtilitiesFreeData updated 2026-09-14
  12. Statistics Calculator++ app icon

    Statistics Calculator++

    Behzad Dogahe

    Calculate stats with Add X, Add Y,

    Calculator++ allows users to input data via "Add X," "Add Y," and "Add Z" buttons. It calculates sum, mean, standard deviation, quartiles, and more. Results are displayed in a table. Box and whisker plots and histograms visualize data.

    ★ 4.1309 ratingsUtilities$2.99Data updated 2026-09-08
  13. Q R Code Reader Scan app icon

    Q R Code Reader Scan

    Steve Veloudos

    QR codes and save websites

    Read and QR codes to access information. Save scanned websites to favorites for quick recall. Share scanned content via links or email. Navigate to URLs directly from the .

    ★ 4.5931 ratingsUtilitiesFreeData updated 2026-09-06

How we rank alternatives

Apps are ranked by functional similarity, category fit, rating confidence, and popularity.