CosmoCalc app icon

Apps Like CosmoCalc for iPhone and iPad

Calculate cosmic distances and scales

Set cosmological parameters like H_0, Ω_m, and Ω_Λ. Calculate various astronomical distances and scales based on redshift and selected cosmology. Display results in multiple units and export data for further analysis.

by Eli Rykoff★ 5.04 ratingsEducationFreeData updated 2026-09-08

CosmoCalc screenshots

Ranked alternatives

Showing 1–20 of 1,000 ranked alternatives.

  1. Deluxe Moon Pro • App & Widget app icon

    Deluxe Moon Pro • App & Widget

    Sergey Vdovenko

    Track phases and lunar events

    Track lunar phases, moonrise and moonset times, and eclipse predictions. View detailed maps and surface features. Adjust settings for photography with exposure and focus guides. Access astronomical data and cultural lunar calendars.

    ★ 4.77,342 ratingsWeatherFreeData updated 2026-09-08
  1. iPersia Calendar تقویم ارز app icon

    iPersia Calendar تقویم ارز

    Exeersoft Inc

    Track events, set reminders, switch languages

    Displays dates in Persian, Islamic, and Gregorian calendars. Users can switch between English and Farsi languages. It shows international holidays and Persian events. Features include daily, monthly, and annual views.

    ★ 4.8235,179 ratingsProductivityFreeData updated 2026-09-08
  2. StarMap 3D+ Plus app icon

    StarMap 3D+ Plus

    Edward Sanville

    Explore celestial objects with 3D views

    Use device sensors to locate planets, constellations, and satellites. View high-definition graphics with Retina display. Adjust settings based on location and time. Access detailed information about celestial objects.

    ★ 4.86,848 ratingsEducation$2.99Data updated 2026-09-08
  3. Sky Tonight - Stargazing Guide app icon

    Sky Tonight - Stargazing Guide

    Vito Technology Inc.

    Identify celestial objects

    Explore the night sky by identifying celestial objects, tracking astronomical events, and locating specific space bodies. Adjust constellation visuals, set reminders for celestial events, and customize the experience.

    ★ 4.875,179 ratingsReferenceFreeData updated 2026-09-08
  4. Spaceflight Simulator app icon

    Spaceflight Simulator

    Spaceflight Simulator UK Ltd

    Build rockets, explore space, track physics

    Build and customize rockets to explore a realistically scaled universe. Navigate using real orbital mechanics and travel to distant planets and objects. Interact with Mercury, Venus, Earth, the Moon, Mars, Phobos, and Deimos.

    ★ 4.883,788 ratingsGamesFreeData updated 2026-09-06
  5. SkySafari 7 Pro app icon

    SkySafari 7 Pro

    Simulation Curriculum Corp.

    Explore celestial objects and track the night

    Access celestial objects with a comprehensive database of comets, asteroids, and solar system bodies. Plan and log observations, control telescopes, and track accurate positions. View detailed sky maps and receive real-time updates.

    ★ 4.65,462 ratingsReference$17.99Data updated 2026-09-08
  6. Star Walk 2 Plus: Sky Live App app icon

    Star Walk 2 Plus: Sky Live App

    Vito Technology Inc.

    Explore celestial objects and constellations

    View celestial objects like stars, planets, and constellations using device sensors and GPS. Tap to identify objects and learn about their properties. Explore detailed information on celestial events and navigation. Share observations with others.

    ★ 4.691,138 ratingsEducationFreeData updated 2026-09-06
  7. FieldCalc - GPS Area Measure app icon

    FieldCalc - GPS Area Measure

    Pravin Gondaliya

    Land and calculate distances with GPS

    Land and distances using GPS by marking points on a map. Calculate field size, plot dimensions, and property boundaries. Save and share measurement data. Sync with other devices for accurate field surveys.

    ★ 4.55,274 ratingsUtilitiesFreeData updated 2026-09-06
  8. Moon Phases and Lunar Calendar app icon

    Moon Phases and Lunar Calendar

    Business City s.r.o.

    Check and track events

    Track , age, rise, and set times for your location. View next full dates. Check sun and times for specific dates and locations. Save and share data.

    ★ 4.937,264 ratingsWeatherFreeData updated 2026-09-08
  9. Tape Measure® app icon

    Tape Measure®

    AI Photo Editor Lab SRL

    Measure objects with AR precision

    Measure distances using augmented reality or direct phone contact. Calculate surface areas and angles. Create floor plans and save measurements. Share results via email or messaging.

    ★ 4.642,778 ratingsUtilitiesFreeData updated 2026-09-06
  10. Planets app icon

    Planets

    Dana Peters

    Explore in 3D view

    Explore the solar system with 3D views of and the moon. Locate celestial bodies using 2D and 3D sky maps. Check visibility times for . Rotate a 3D globe to view planetary details.

    ★ 4.5972 ratingsUtilitiesFreeData updated 2026-09-08
  11. Star Chart app icon

    Star Chart

    ESCAPE VELOCITY LIMITED

    Explore celestial objects with AR

    View celestial objects using augmented reality. Point device at sky to identify stars, planets, and constellations. Access detailed information and historical data. Sync with GPS for accurate positioning. Explore 3D models of celestial bodies.

    ★ 4.624,838 ratingsEducationFreeData updated 2026-09-08
  12. StarMap 3D app icon

    StarMap 3D

    Edward Sanville

    Explore celestial objects with 3D views

    Use compass and gyroscope to locate planets, stars, and constellations. View high-definition Retina graphics with detailed celestial objects. Access 3D views, constellation artwork, and deep sky objects. Sync with iPad for enhanced features.

    ★ 4.81,371 ratingsEducation$1.99Data updated 2026-09-08
  13. LunaSolCal app icon

    LunaSolCal

    Volker Vocking

    Track sunrise, sunset, and twilight times

    Calculate sunrise, sunset, moonrise, and moonset times for your location. Track solar noon, day length, and equation of time. View declination, twilight phases, and azimuth angles. Monitor seasonal dates, solstices, and equinoxes.

    ★ 4.91,176 ratingsUtilities$4.99Data updated 2026-09-08
  14. Sky Live: Heavens Above Viewer app icon

    Sky Live: Heavens Above Viewer

    Vito Technology Inc.

    Plan and capture star observations

    Plan and observe celestial events with real-time data on planets, stars, and constellations. Check weather conditions and visibility scores. Set location for accurate sky tracking. Capture and share starry night photos.

    ★ 4.614,740 ratingsEducationFreeData updated 2026-09-08

How we rank alternatives

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