Stackis RPN app icon

Apps Like Stackis RPN for iPhone and iPad

by Skimra★ 5.02 ratingsUtilities$0.99Data updated 2026-09-06

Stackis RPN screenshots

Ranked alternatives

Showing 141–160 of 1,000 ranked alternatives.

  1. iCalc: Photo Math Calculator app icon

    iCalc: Photo Math Calculator

    Stephen Elrod

    Solve problems and scan equations

    Solve problems with step-by-step explanations. Scan equations for instant solutions. Practice arithmetic to calculus. Ask AI-powered Bot for detailed answers on , science, and other topics.

    ★ 4.4342 ratingsProductivityFreeData updated 2026-09-06
  2. Scientific Calculator Pro++ app icon

    Scientific Calculator Pro++

    DigiGalaxy LLC

    Calculate, convert, and explore science

    Perform complex calculations including algebraic, trigonometric, and logarithmic functions. Convert units across multiple categories. Access physical constants and formulas. Use fractions, degrees/minutes/seconds, and a high-precision display.

    ★ 0.00 ratingsEducation$2.99Data updated 2026-09-06
  1. Phone Doctor Plus app icon

    Phone Doctor Plus

    iDea Mobile Tech Inc.

    Test systems and diagnose issues

    Perform hardware and system diagnostics for iPhone 15 series and earlier models. Test over 40 diagnostic categories to identify device issues. Monitor battery health, storage, memory, and network usage.

    ★ 4.4328 ratingsUtilitiesFreeData updated 2026-09-08
  2. NerdCalc app icon

    NerdCalc

    Nidal Fakhouri

    Calculate in binary, hex, and decimal simultaneously

    Convert numbers between binary, hexadecimal, and decimal bases. Display all three bases simultaneously. Switch input modes and see results in all bases. Perform arithmetic, logic, and bitwise operations. Support unsigned and 2’s complement numbers.

    ★ 4.8183 ratingsUtilitiesFreeData updated 2026-09-08
  3. Progressbar Calculator - Retro app icon

    Progressbar Calculator - Retro

    SH Limited

    Calculate and track progress with math precision

    Perform calculations with basic arithmetic operations. Input numbers and equations for quick results. Use a interface with nostalgic design elements. Adjust display settings for different calculation modes.

    ★ 4.427 ratingsUtilitiesFreeData updated 2026-09-06
  4. Simple Calculator. + app icon

    Simple Calculator. +

    tasser gyati

    Calculate taxes and percentages

    Perform arithmetic calculations with 12 digits. Calculate tax, percentages, and cost, selling price, and gross margin. Use memory functions, square root, and sign change. Track grand total.

    ★ 4.7140 ratingsUtilities$1.99Data updated 2026-09-06
  5. Cross Stitch Calculators app icon

    Cross Stitch Calculators

    Diana Białogrzywa

    Calculate fabric size and material needs

    Calculate fabric size in centimeters or inches based on count and fabric type. Determine thread consumption for specified stitches. Input project details to estimate material needs. Export calculations for reference.

    ★ 4.7296 ratingsLifestyleFreeData updated 2026-09-06
  6. DB50X app icon

    DB50X

    Christophe de Dinechin

    ★ 5.05 ratingsProductivity$9.99Data updated 2026-09-06
  7. Time Calculator × app icon

    Time Calculator ×

    DOUBLE U s.r.o.

    Calculate with precision and ease

    Perform -based calculations with addition, subtraction, multiplication, and division. Input and display in days, hours, minutes, and seconds. Customize format preferences. Convert between different units.

    ★ 4.7287 ratingsUtilitiesFreeData updated 2026-09-06
  8. RMD Calculator app icon

    RMD Calculator

    Jessica Battisto

    Calculate RMD for retirement accounts

    Calculate RMD amounts based on account balance and age. Input user details to determine annual distribution requirements. Provide guidance on RMD calculations for retirement accounts.

    ★ 4.8172 ratingsFinanceFreeData updated 2026-09-06
  9. RMB Games - Toddler Learning app icon

    RMB Games - Toddler Learning

    RMB INVESTMENT COMPANY, INC

    Play, learn, and explore with interactive levels

    Explore interactive levels with increasing complexity for toddlers. Learn letters, numbers, and shapes through voice-guided activities. Complete over 50 tasks to develop early skills. Receive pronunciation guidance from native speakers.

    ★ 4.2261 ratingsGamesFreeData updated 2026-09-06
  10. 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
  11. DB40X app icon

    DB40X

    Christophe de Dinechin

    ★ 5.04 ratingsProductivityFreeData updated 2026-09-06
  12. Stock Profit Calculator+ app icon

    Stock Profit Calculator+

    Avni Sagiroglu

    Calculate break-even price and loss

    Calculate break-even price based on buying cost and quantity. Determine net or loss using expected selling price and commissions. Input and adjust values for accurate financial tracking.

    ★ 4.7166 ratingsFinanceFreeData updated 2026-09-06
  13. Database for Tarkov app icon

    Database for Tarkov

    Dao Cuong

    Track quests, build gear, and map

    Manage in-game items and quests with a . Track Flea Market prices, build presets and weapons, and monitor trader restocks. Sync team quests, calculate craft profits, and view interactive maps with boss locations and armor details.

    ★ 4.8226 ratingsUtilitiesFreeData updated 2026-09-06

How we rank alternatives

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