ThetaCalc app icon

Apps Like ThetaCalc for iPhone and iPad

by Felix Stehli★ 4.24 ratingsUtilitiesFreeData updated 2026-09-28

ThetaCalc screenshots

Ranked alternatives

Showing 141–160 of 1,000 ranked alternatives.

  1. Pascal: 3-in-1 Calculator app icon

    Pascal: 3-in-1 Calculator

    Andrew Wei

    Calculate, graph, code with precision

    Perform complex calculations with scientific, graphing, and programmer modes. View graphs and equations. Use the Today widget for quick access. Unlock advanced features with in- purchases. Reinstall to reset trial periods.

    ★ 4.023 ratingsProductivityFreeData updated 2026-09-09
  2. NumWorks Graphing Calculator app icon

    NumWorks Graphing Calculator

    NumWorks

    Calculate, graph, and explore math problems

    Solve math problems with , algebra, and calculus functions. Input equations, plot graphs, and analyze results. Store and recall previous calculations. Sync with calculators for seamless data transfer.

    ★ 4.498 ratingsEducationFreeData updated 2026-09-17
  3. Calculator 3 in 1 app icon

    Calculator 3 in 1

    CAT VIET SOFTWARE DEVELOPMENT & MEDIA JSC

    Calculations made simpler than ever before.

    The app offers three calculating modes: STANDARD, STRING, and RPN. It supports precision to 31 digits and complex numbers in STRING mode.

    ★ 2.45 ratingsUtilitiesFreeData updated 2026-10-06
  1. Calculator: Basic & Scientific app icon

    Calculator: Basic & Scientific

    Wuhan Ananta Technology Co., Ltd.

    Calculate, convert, solve, track

    Perform calculations using a basic, scientific, currency, and units calculator. View calculation history, convert numbers to speech, and synchronize results across all calculator modes.

    ★ 4.6203 ratingsUtilitiesFreeData updated 2026-09-28
  2. Stair Help app icon

    Stair Help

    Armchair Engineering

    Calculate staircase dimensions with precision

    Calculate staircase dimensions with precise formulas. Input riser height and step depth to determine going, stringer, and base lengths. Choose units from mm, cm, or inches.

    ★ 4.6241 ratingsUtilities$1.99Data updated 2026-09-10
  3. 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
  4. Vibe Cam - Moments Never Fade app icon

    Vibe Cam - Moments Never Fade

    森 林

    Capture film-style photos and videos

    Offers DSLR-level photography with P and M exposure modes. Adjust shutter speed and ISO manually or automatically. Access film simulation settings for grain texture and contrast. Capture high-quality photos with mirrorless-level controls.

    ★ 4.8140 ratingsPhoto & VideoFreeData updated 2026-09-06
  5. Modern Sprout app icon

    Modern Sprout

    Modern Sprout LLC

    Control growing devices from anywhere

    Manage smart growing devices remotely to adjust settings and monitor plants. Pre-programmed configurations optimize growing conditions by plant type. Control hydroponic watering and LED growlights from anywhere.

    ★ 4.3118 ratingsUtilitiesFreeData updated 2026-09-21
  6. RPN-45 HD app icon

    RPN-45 HD

    Willy Kunz

    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.

    ★ 4.86 ratingsProductivity$2.99Data updated 2026-09-08
  7. A2Calc app icon

    A2Calc

    Farren Domenici

    Calculate A2 SFIC pinning charts easily.

    The app calculates pinning charts for A2 Small Format Interchangeable Cores. It supports 6 or 7 pin systems and requires a control and master key to generate a chart.

    ★ 4.710 ratingsUtilities$6.99Data updated 2026-10-08
  8. The Calculator Pro· app icon

    The Calculator Pro·

    KISSAPP, S.L.

    Calculate, convert, and solve with ease

    Offers seven-in-one functions including basic, scientific, and unit conversion tools for currency, distance, weight, time, and data. Switch between modes by rotating the device. View operation history on the screen. Use degree or radian settings.

    ★ 4.5153 ratingsUtilitiesFreeData updated 2026-09-16
  9. FX Algebra Solver app icon

    FX Algebra Solver

    Euclidus Inc

    Solve algebra problems anytime, anywhere.

    The app provides guidance for solving algebra homework and textbook problems. It includes over 1200 sample problems with animated solution steps and supports scientific and graphing calculators.

    ★ 3.592 ratingsEducationFreeData updated 2026-10-03
  10. 10bII Financial Calculator PRO app icon

    10bII Financial Calculator PRO

    An Truong

    Calculate loans, track cash flow, solve problems

    Calculate loan payments, analyze cash flow, and perform investment analysis. Input variables for scenarios. Solve time value of money problems. mortization schedules. Export results to CSV. Sync with tools.

    ★ 4.6251 ratingsFinance$5.99Data updated 2026-11-02
  11. 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
  12. EduCalc Classic app icon

    EduCalc Classic

    William Jockusch

    Calculate and graph mathematical functions

    Perform complex calculations with a scientific calculator featuring arithmetic, exponentiation, roots, logarithms, factorials, permutations, combinations, and modulus. Graph functions and equations. Export results and share calculations.

    ★ 3.9303 ratingsEducationFreeData updated 2026-09-08

How we rank alternatives

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