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 661–680 of 1,000 ranked alternatives.

  1. iMeasures! Measures Converter app icon

    iMeasures! Measures Converter

    michele barbieri

    Convert units with offline access.

    The app allows instant offline conversions between over 320 units in 23 categories. It includes a functional calculator and exportable summary tables for sharing data via email, message, or clipboard.

    ★ 0.00 ratingsUtilities$0.99Data updated 2026-10-28
  1. Inch Centimeter app icon

    Inch Centimeter

    LionsApp di Nallbati Elton

    Convert units with instant results

    Convert units between inches and centimeters instantly. Enter numbers to get immediate conversions. Save calculations for future reference. Share results directly. Perform quick and accurate measurements without additional steps.

    ★ 1.01 ratingsUtilities$0.99Data updated 2026-09-08
  2. CΝCРW app icon

    CΝCРW

    Muhammad Akram

    Manage tasks, set reminders, and organize files

    Hash encoding converts data into a fixed-length string using cryptographic algorithms. Users can generate hashes, compare hash values, and verify data integrity. Supports multiple hash algorithms like SHA-1, SHA-256, and MD5.

    ★ 5.01 ratingsUtilitiesFreeData updated 2026-09-06
  3. In-Charged app icon

    In-Charged

    Shanghai Quanjun Intelligence Technology Co., Ltd.

    ★ 0.00 ratingsUtilitiesFreeData updated 2026-09-06
  4. r.Calc app icon

    r.Calc

    Nicolas Jorand

    A simple calculator for daily uses.

    The app provides a calculator with a four-level visible stack and a total of one hundred positions. It includes operations for plus, minus, multiply, divide, opposite, and inverse, with keyboard errors notified by vibration.

    ★ 4.03 ratingsUtilities$0.99Data updated 2026-09-10
  5. Units Calculator app icon

    Units Calculator

    Rakesh Bhadani

    Convert and access tools with a tap

    Convert across categories like area, storage, mass, length, time, temperature, and volume. Switch between life-related such as angle, energy, and pressure. Access science-based conversions for acceleration, force, and radiation.

    ★ 0.00 ratingsUtilitiesFreeData updated 2026-09-06
  6. Rul-AR app icon

    Rul-AR

    3Embed Software Technologies private limited

    ★ 0.00 ratingsUtilitiesFreeData updated 2026-09-15

How we rank alternatives

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