Retro 15C app icon

Apps Like Retro 15C for iPhone and iPad

Calculate complex numbers and matrices

Perform complex number calculations and trigonometric functions. Handle matrix operations and numerical root finding. Calculate integrals and statistical values including linear regression. Write and execute custom programs. No ads or in- purchases.

by Greg Hewgill★ 4.3228 ratingsUtilitiesFreeData updated 2026-09-08

Retro 15C screenshots

Ranked alternatives

Showing 361–380 of 1,000 ranked alternatives.

  1. PieChart app icon

    PieChart

    Seiji Nagano

    Create a pie chart from data

    The app allows users to create pie charts. Users can input numerical values for each term to generate a pie chart from the data provided.

    ★ 2.24 ratingsUtilitiesFreeData updated 2026-10-21
  2. Mehrsys Medical Calculator app icon

    Mehrsys Medical Calculator

    Hamidreza Hosseini

    Calculate metrics instantly

    Provides calculators for various specialties. Input patient data to calculate dosages, risk scores, and diagnostic probabilities. Save and share results with healthcare professionals.

    ★ 4.912 ratingsMedicalFreeData updated 2026-09-19
  3. The Pendulum by GES app icon

    The Pendulum by GES

    Brian DiZio

    Solve puzzles with physics simulations

    Explore physics with real-time simulations and advanced numerical calculations. Analyze chaos theory through Lyapunov exponent measurements. Visualize phase space and track energy changes. Access topology metrics for mathematical insights.

    ★ 4.17 ratingsEducationFreeData updated 2026-09-06
  1. Better Calc app icon

    Better Calc

    Philip Symons

    Calculate, convert, and solve equations

    Perform calculations in standard, scientific, and programmer modes. Calculate totals and taxes. Switch between portrait and landscape layouts. Support multitasking and slide-over on iPad. No ads.

    ★ 5.02 ratingsUtilitiesFreeData updated 2026-09-06
  2. FlexiCalc – Excel Calculator app icon

    FlexiCalc – Excel Calculator

    艳君 武

    Edit formulas, visualize results, calculate anytime

    Allows users to perform calculations and create visual layouts. Edit numbers and formulas in real time with automatic updates. Combine calculations with a canvas for organizing data visually.

    ★ 4.423 ratingsUtilitiesFreeData updated 2026-09-06
  3. Hamm Seismograph app icon

    Hamm Seismograph

    i-NOVATiON GmbH

    Display structure-borne swings in real-time.

    The app displays structure-borne swings in real-time, similar to a seismometer. It visualizes swing-loads from construction machinery, differentiating between oscillation and vibration to prevent building damage.

    ★ 4.117 ratingsUtilitiesFreeData updated 2026-10-20
  4. Tallymander app icon

    Tallymander

    Danilo Campos

    Count items, track totals, update instantly

    Track counts with grouped, list-based entries. Customize each counter with specific settings. Perform real-time calculations and view statistical measures. Export and share data through various formats.

    ★ 4.010 ratingsProductivityFreeData updated 2026-09-08
  5. BAS2 RRC app icon

    BAS2 RRC

    Bell Auto Services Ltd

    Read fault codes and clear errors

    Control vehicle diagnostics via Bluetooth Smart connection. Read and clear fault codes. View live engine data in numerical or graphical formats. Perform ECU service tests and retrieve ECU information.

    ★ 0.00 ratingsUtilitiesFreeData updated 2026-09-09
  6. Financial Calculator + app icon

    Financial Calculator +

    Panoramic Software Inc.

    Calculate loans, track investments, plan retirement

    Calculate mortgage payments and generate amortization tables. Compute tips and loan details. Analyze time value of money, dates, percentage changes, and break-even points. Perform planning for home purchases, investments, and retirement.

    ★ 4.77 ratingsUtilities$1.99Data updated 2026-11-06
  7. BA II Plus Calculator app icon

    BA II Plus Calculator

    国栋 焦

    Calculate TVM, amortize loans, manage cash flow

    Solve time-value-of-money calculations and generate amortization schedules. Perform cash-flow analysis and compute NPV and IRR. Calculate depreciation using four methods. Calculate breakeven, profit, and percent difference.

    ★ 3.119 ratingsUtilities$1.99Data updated 2026-11-13
  8. IntCalc app icon

    IntCalc

    James Preston

    Calculate in any number base

    An RPN calculator with stack display and base conversion. Users can switch between binary, octal, decimal, and hexadecimal modes. Each stack element can be viewed in any base or as ASCII.

    ★ 0.00 ratingsProductivityFreeData updated 2026-09-08
  9. TI Nspire II Calculator Manual app icon

    TI Nspire II Calculator Manual

    Di Venisco UG (haftungsbeschrankt)

    Learn math with step-by-step guides

    Learn differential calculus, solve equations, and work with matrices and CAS functions using step-by-step guides. Swipe through 220 screenshots showing exact key presses. View detailed instructions for graphing operations.

    ★ 5.03 ratingsEducation$7.99Data updated 2026-11-13
  10. Calculator Plus - Math Solver app icon

    Calculator Plus - Math Solver

    BEFUN AI TECH. PTE. LTD.

    Solve problems by photo

    Solve problems by taking photos. View detailed solving steps. Perform addition, subtraction, division, and multiplication. Support 12 significant digits. Switch between landscape and portrait mode. No ads.

    ★ 5.03 ratingsUtilitiesFreeData updated 2026-09-06

How we rank alternatives

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