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

e: Spacetime Converter screenshots

Ranked alternatives

Showing 841–860 of 1,000 ranked alternatives.

  1. Solenoid Magnetic Field Calc app icon

    Solenoid Magnetic Field Calc

    Tan Chia Ling

    Calculate , current, and turns

    Calculate strength inside a using input parameters like current, length, and turns. Perform instant calculations with high precision up to 16 decimal places. Copy results to other apps. Includes formulas and supports multiple units for each input.

    ★ 0.00 ratingsUtilities$2.99Data updated 2026-09-15
  2. Weight Calculator & Converter app icon

    Weight Calculator & Converter

    Ashvin Kevadiya

    Select shape, material, and length

    Calculate for plates, pipes, rods, and other shapes by selecting the type and entering dimensions. Choose from over 160 materials including steel, aluminum, brass, copper, and plastic.

    ★ 0.00 ratingsUtilitiesFreeData updated 2026-09-06

How we rank alternatives

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