e: Spacetime Converter app icon

Apps Like e: Spacetime Converter for iPhone and iPad

Convert length and time relativistically.

The app converts between length and time using geometrized units where the speed of light is unity. It allows users to think about the world differently by converting units like inches to seconds or miles to years.

by Elliptics, Ltd.★ 5.01 ratingsEducationFreeData updated 2026-09-10
App detailsView in App Store

e: Spacetime Converter screenshots

Ranked alternatives

Showing 421–440 of 1,000 ranked alternatives.

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    Resin Calculator

    Invenio

    Mix or epoxy with precision

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    ★ 4.48 ratingsUtilities$0.99Data updated 2026-09-06
    App details
  2. TrickyTrivia: GK Quiz 2020 app icon

    TrickyTrivia: GK Quiz 2020

    Swaroop S

    Play trivia, challenge friends, track scores

    Play trivia quizzes in categories like World Politics, Sports, and Science. Answer questions to test knowledge and improve memory. Track progress and compete with others in real-time matches. Share scores and challenge friends through social media.

    ★ 4.515 ratingsGamesFreeData updated 2026-09-09
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  3. Beam Calculator app icon

    Beam Calculator

    V PUGAZHENTHI

    Calculate parameters and convert units

    Calculate parameters and convert units between metric and imperial systems. Access tools for critical bending moment, maximum stress, and deflection. Input loads and dimensions to determine structural properties.

    ★ 4.012 ratingsUtilities$2.99Data updated 2026-09-10
    App details
  11. Mile Km app icon

    Mile Km

    LionsApp di Nallbati Elton

    Convert miles to kilometers and save results

    Convert units between miles and kilometers. Save and archive calculations. Share results via email. Reset with a shake gesture. Features Retina graphics and simple interface. Supports multiple languages.

    ★ 0.00 ratingsUtilities$0.99Data updated 2026-09-08
    App details
  12. GeoGebra Scientific Calculator app icon

    GeoGebra Scientific Calculator

    GeoGebra GmbH

    Calculate and solve math problems

    Perform calculations with fractions, trigonometric functions, statistics, and exponential/logarithmic operations. Use exam mode for test environments. Replace traditional calculators with this tool for math and science learning.

    ★ 4.624 ratingsEducationFreeData updated 2026-09-06
    App details
  16. LensTutorial app icon

    LensTutorial

    Alf Jorgen Bratane

    Simulate lenses, view calculations

    Learn about photographic lenses through interactive simulations. Adjust aperture, focal length, and focus distance to visualize their effects. Calculate depth of field and view real-time changes.

    ★ 2.97 ratingsPhoto & VideoFreeData updated 2026-09-08
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