Slide Rule app icon

Apps Like Slide Rule for iPhone and iPad

A mechanical analog computer simulator.

The app simulates a mechanical analog computer used for scientific calculations. It performs multiplication, division, square, cube, square root, and cubic root functions.

by 正行 Akamatsu★ 1.01 ratingsProductivity$0.99Data updated 2026-09-10

Slide Rule screenshots

Ranked alternatives

Showing 41–60 of 1,000 ranked alternatives.

  1. MathAce: Solve Study Question app icon

    MathAce: Solve Study Question

    精精 唐

    Math problems and track progress

    Math problems by taking a photo. Recognize equations, word problems, and geometry figures. Get step-by-step solutions and explanations. Track progress and review past problems. Share solutions via email or messaging.

    ★ 4.78,703 ratingsProductivityFreeData updated 2026-09-06
  2. Calculator + app icon

    Calculator +

    Sarah Ragab

    Simple, usable, and beautiful calculator.

    The app offers a free basic and scientific calculator with an intuitive interface. It displays equations and results simultaneously, supporting fractions and percentages.

    ★ 4.610,075 ratingsUtilitiesFreeData updated 2026-09-13
  3. Calculator%. app icon

    Calculator%.

    Unicom TOV

    Calculate, add, subtract, multiply, divide

    A calculator with a large, easy-to-read display and simple buttons. Perform addition, subtraction, multiplication, and division. Features a clear layout and user-friendly design for everyday use.

    ★ 4.44,181 ratingsUtilitiesFreeData updated 2026-09-09
  1. Symbolab - AI Math Solver App app icon

    Symbolab - AI Math Solver App

    Eqsquest Ltd

    Solve problems with step-by-step guidance

    Solve problems by typing or snapping a photo. Get step-by-step solutions for pre-algebra, calculus, trigonometry, and more. Calculate derivatives, integrals, equations, and fractions. Graph functions and analyze results.

    ★ 4.626,156 ratingsEducationFreeData updated 2026-09-09
  2. 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
  3. HVAC & Sheet Metal Calculator app icon

    HVAC & Sheet Metal Calculator

    Calculated Industries, Inc.

    Calculate duct offsets and angles

    Performs X, Y, R radius calculations and theta measurements. It includes -specific functions for ducting offsets and angle computations. Features dimensional math, geometry, and trigonometry tools for precise construction calculations.

    ★ 4.955 ratingsUtilitiesFreeData updated 2026-09-06
  4. EduCalc Classic Pro app icon

    EduCalc Classic Pro

    William Jockusch

    Scientific calculator with graphing and more.

    The app offers a scientific calculator with complex number support and programmable keys. It includes graphing capabilities for up to nine equations, vector and matrix calculations, and a unit converter for various measurements.

    ★ 4.422 ratingsEducation$1.99Data updated 2026-09-14
  5. John Cominio RPN Calculator app icon

    John Cominio RPN Calculator

    John Cominio

    Calculate using RPN notation and scientific functions

    Scientific with reverse polish notation. Perform square root, reciprocal, trigonometric functions, hyperbolic functions, and logarithms. Switch between degrees, radians, and gradians. Calculate factorials, exponents, and nth roots.

    ★ 4.99 ratingsProductivityFreeData updated 2026-09-08
  6. Grid # - Add grid on image app icon

    Grid # - Add grid on image

    金鹏 王

    Add grids to images and customize styles

    Add grids to images with 5 types including rectangle and square options. Customize lines with RGB colors. Adjust rows and columns or set row height and column width. Export edited images.

    ★ 4.610,017 ratingsPhoto & VideoFreeData updated 2026-09-10
  7. Ncalc - Graphing Calculator 84 app icon

    Ncalc - Graphing Calculator 84

    Tran Duy

    Graph functions and trace curves

    Allows users to plot functions, polar, and parametric graphs. Users can edit equations in the graph editor and view graphs. Features include tracing, finding intersections and extrema, displaying derivatives, and adding tangents.

    ★ 4.64,713 ratingsEducationFreeData updated 2026-09-06
  8. Citizen Calculator App app icon

    Citizen Calculator App

    Devkrushna Infotech Private Limited

    Calculate, add, subtract, multiply, divide, and percentage

    Perform basic arithmetic operations including addition, subtraction, multiplication, and division. Calculate percentages and use memory functions like M+, M-, MR, MU, and GT. Includes square root functionality.

    ★ 4.7288 ratingsUtilitiesFreeData updated 2026-09-06
  9. Audio Spectrum Analyzer dB RTA app icon

    Audio Spectrum Analyzer dB RTA

    Marina Polyanskaya

    Analyze and visualize frequencies

    Analyze frequencies with a real-time display. Adjust and visualize sound levels across different frequency ranges. Export analysis data and compare signals for accuracy. Calibrate equipment for optimal performance.

    ★ 4.53,039 ratingsMusicFreeData updated 2026-09-13
  10. Calculator HD Pro app icon

    Calculator HD Pro

    Cider Software LLC

    Calculate with dual-line display and multi-line input

    A with dual-line display showing input and result. Supports multi-line equations and tap-to-move cursor. Saves calculation history with timestamps and labels. Allows emailing calculations and swiping to review past entries.

    ★ 4.811,253 ratingsUtilities$9.99Data updated 2026-09-08
  11. Scientific Calculator Premium app icon

    Scientific Calculator Premium

    Nixus Development

    Calculate, graph, and store equations

    Perform complex calculations with root, power, trigonometric, and logarithmic functions. Calculate factorials and double factorials. Draw graphs, use four memory blocks, insert constants, and make notes.

    ★ 4.5286 ratingsUtilitiesFreeData updated 2026-09-08
  12. MathMaster: Math Solver & Help app icon

    MathMaster: Math Solver & Help

    Appslux Media Limited

    Snap problems, get answers, see steps

    Take photos of problems or input equations to get instant solutions. View step-by-step explanations to understand solving methods. Correct answers and detailed breakdowns are provided for homework assistance.

    ★ 4.611,975 ratingsEducationFreeData updated 2026-09-06
  13. Studdy: AI Tutor & Math Solver app icon

    Studdy: AI Tutor & Math Solver

    Studdy, LLC

    Ask questions, get instant answers

    Ask questions about and science problems. Receive step-by-step explanations. Track progress over time. Set study goals and receive feedback. Sync with learning platforms for assignments.

    ★ 4.812,400 ratingsEducationFreeData updated 2026-09-06
  14. Panecal Scientific Calculator app icon

    Panecal Scientific Calculator

    Noriyasu Kutsuzawa

    Enter formulas and check calculations

    Is a that lets users input and edit formulas with a live display. It supports formula reuse, variable memory, and cursor navigation for precise editing. Users can check formulas for errors and adjust values efficiently.

    ★ 4.81,952 ratingsUtilitiesFreeData updated 2026-09-08
  15. QuickGrader app icon

    QuickGrader

    Lance Kimbrough

    Calculate grades in seconds easily.

    The app offers customizable grading options including half-point values, adjustable grade scales, and pass/fail options. It features dark and light modes and prevents screen dimming for uninterrupted grading.

    ★ 4.95,358 ratingsEducationFreeData updated 2026-09-16

How we rank alternatives

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