CosmoCalc3.1.1 - App Store
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Publisher Description
CosmoCalc is a simple cosmological distance calculator. With a simple and intuitive interface you can quickly set a reference cosmology and redshift, and CosmoCalc will calculate a full suite of astronomical distances and scales.
CosmoCalc is a useful and educational reference tool for astronomers, astronomy students, and anybody interested in calculating the distance to astronomical sources.
CosmoCalc allows you to:
* Select cosmological parameters H_0, Ω_m, and Ω_Λ with simple touch-screen controls
* Easily choose from common reference cosmologies, including Planck 2013, WMAP9, Concordance, and Einstein-deSitter
* Quickly determine the luminosity distance, angular diameter distance, lookback time, age of the Universe, comoving volume, and critical density
* Easily switch between flat and non-flat cosmologies by clicking on the chain
Version History Finally updated for large screen iPhones! Other small bug fixes, Planck 2015 cosmology, and full iOS 10 compatibility, . 3.1.1 01/02/2017 CosmoCalc has been given a complete makeover...inside and out. Now sporting a snazzy new look for the new iOS! 3.0 09/18/2013 Planck 2013 cosmological parameters are out! And now available as a default option. 2.4.1 03/26/2013 * Support for iPhone 5
* Support for iOS 6
* Defaults to WMAP 7 Cosmology
* VoiceOver Support for visually impaired cosmologists to do "blind cosmology". 2.4 09/26/2012 Fixed bug in distance modulus graph 2.3.1 10/22/2011 Now displays Hubble constant evolution factor E(z) and scale factor a.
Calculator supports redshifts up to z=1000. 2.3 06/21/2011 Fixed bug so that non-flat cosmologies can be used when running on iPad 2.2.1 09/22/2010 - Added iOS 4 compatibility and iPhone 4 compatibility.
- Tweaks to user interface
- Minor bug fixes 2.2 06/26/2010 By popular demand, added distance modulus and comoving distance. 2.1 04/28/2010 Version 2.0 now includes graphing capabilities.
- Plot angular diameter distance, luminosity distance, lookback time, age of the Universe, comoving volume, and critical density as a function of redshift.
- Compare the evolution of a distance indicator for any two sets of cosmological parameters.
- Pinch to zoom and drag to pan for a detailed view of the plot. 2.0 11/13/2009 1.0 10/13/2009
About CosmoCalc
The company that develops CosmoCalc is Eli Rykoff. The latest version released by its developer is 3.1.1.
To install CosmoCalc on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-14 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the CosmoCalc as malware if the download link is broken.
How to install CosmoCalc on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the CosmoCalc is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After CosmoCalc is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
System requirements
Download information
Pricing
Version History
version 3.1.1
posted on 2026-10-14
Version History Finally updated for large screen iPhones! Other small bug fixes, Planck 2015 cosmology, and full iOS 10 compatibility, . 3.1.1 01/02/2017 CosmoCalc has been given a complete makeover...inside and out. Now sporting a snazzy new look for the new iOS! 3.0 09/18/2013 Planck 2013 cosmological parameters are out! And now available as a default option. 2.4.1 03/26/2013 * Support for iPhone 5
* Support for iOS 6
* Defaults to WMAP 7 Cosmology
* VoiceOver Support for visually impaired cosmologists to do "blind cosmology". 2.4 09/26/2012 Fixed bug in distance modulus graph 2.3.1 10/22/2011 Now displays Hubble constant evolution factor E(z) and scale factor a.
Calculator supports redshifts up to z=1000. 2.3 06/21/2011 Fixed bug so that non-flat cosmologies can be used when running on iPad 2.2.1 09/22/2010 - Added iOS 4 compatibility and iPhone 4 compatibility.
- Tweaks to user interface
- Minor bug fixes 2.2 06/26/2010 By popular demand, added distance modulus and comoving distance. 2.1 04/28/2010 Version 2.0 now includes graphing capabilities.
- Plot angular diameter distance, luminosity distance, lookback time, age of the Universe, comoving volume, and critical density as a function of redshift.
- Compare the evolution of a distance indicator for any two sets of cosmological parameters.
- Pinch to zoom and drag to pan for a detailed view of the plot. 2.0 11/13/2009 1.0 10/13/2009
version 3.1.1
posted on 2026-09-07
Version History This app has been updated by Apple to prepare for watchOS 27 compatibility. No new features are included.
Finally updated for large screen iPhones! Other small bug fixes, Planck 2015 cosmology, and full iOS 10 compatibility, . 3.1.1 01/02/2017 CosmoCalc has been given a complete makeover...inside and out. Now sporting a snazzy new look for the new iOS! 3.0 09/18/2013 Planck 2013 cosmological parameters are out! And now available as a default option. 2.4.1 03/26/2013 * Support for iPhone 5
* Support for iOS 6
* Defaults to WMAP 7 Cosmology
* VoiceOver Support for visually impaired cosmologists to do "blind cosmology". 2.4 09/26/2012 Fixed bug in distance modulus graph 2.3.1 10/22/2011 Now displays Hubble constant evolution factor E(z) and scale factor a.
Calculator supports redshifts up to z=1000. 2.3 06/21/2011 Fixed bug so that non-flat cosmologies can be used when running on iPad 2.2.1 09/22/2010 - Added iOS 4 compatibility and iPhone 4 compatibility.
- Tweaks to user interface
- Minor bug fixes 2.2 06/26/2010 By popular demand, added distance modulus and comoving distance. 2.1 04/28/2010 Version 2.0 now includes graphing capabilities.
- Plot angular diameter distance, luminosity distance, lookback time, age of the Universe, comoving volume, and critical density as a function of redshift.
- Compare the evolution of a distance indicator for any two sets of cosmological parameters.
- Pinch to zoom and drag to pan for a detailed view of the plot. 2.0 11/13/2009 1.0 10/13/2009
version 3.1.1
posted on 2026-08-12
Version History This update from Apple will improve the functionality of this app. No new features are included.
Finally updated for large screen iPhones! Other small bug fixes, Planck 2015 cosmology, and full iOS 10 compatibility, . 3.1.1 01/02/2017 CosmoCalc has been given a complete makeover...inside and out. Now sporting a snazzy new look for the new iOS! 3.0 09/18/2013 Planck 2013 cosmological parameters are out! And now available as a default option. 2.4.1 03/26/2013 * Support for iPhone 5
* Support for iOS 6
* Defaults to WMAP 7 Cosmology
* VoiceOver Support for visually impaired cosmologists to do "blind cosmology". 2.4 09/26/2012 Fixed bug in distance modulus graph 2.3.1 10/22/2011 Now displays Hubble constant evolution factor E(z) and scale factor a.
Calculator supports redshifts up to z=1000. 2.3 06/21/2011 Fixed bug so that non-flat cosmologies can be used when running on iPad 2.2.1 09/22/2010 - Added iOS 4 compatibility and iPhone 4 compatibility.
- Tweaks to user interface
- Minor bug fixes 2.2 06/26/2010 By popular demand, added distance modulus and comoving distance. 2.1 04/28/2010 Version 2.0 now includes graphing capabilities.
- Plot angular diameter distance, luminosity distance, lookback time, age of the Universe, comoving volume, and critical density as a function of redshift.
- Compare the evolution of a distance indicator for any two sets of cosmological parameters.
- Pinch to zoom and drag to pan for a detailed view of the plot. 2.0 11/13/2009 1.0 10/13/2009
version 3.1.1
posted on 2017-01-02
Jan 2, 2017 Version 3.1.1
Finally updated for large screen iPhones! Other small bug fixes, Planck 2015 cosmology, and full iOS 10 compatibility, .
version 3.1.1
posted on 2017-01-02
Jan 2, 2017 Version 3.1.1
This app has been updated by Apple to display the Apple Watch app icon.
Finally updated for large screen iPhones! Other small bug fixes, Planck 2015 cosmology, and full iOS 10 compatibility, .
version 3.1.1
posted on 2017-01-02
Jan 2, 2017 Version 3.1.1
This app has been updated by Apple to use the latest Apple signing certificate.
Finally updated for large screen iPhones! Other small bug fixes, Planck 2015 cosmology, and full iOS 10 compatibility, .
version 3.1.1
posted on 2017-01-02
This app has been updated by Apple to display the Apple Watch app icon.
Finally updated for large screen iPhones! Other small bug fixes, Planck 2015 cosmology, and full iOS 10 compatibility, .
version 3.0
posted on 2009-10-13
version 3.1.1
posted on 1970-01-01
2017年1月2日 Version 3.1.1
This app has been updated by Apple to use the latest Apple signing certificate.
Finally updated for large screen iPhones! Other small bug fixes, Planck 2015 cosmology, and full iOS 10 compatibility, .
version 3.1.1
posted on 1970-01-01
2 de ene. de 2017 Version 3.1.1
Finally updated for large screen iPhones! Other small bug fixes, Planck 2015 cosmology, and full iOS 10 compatibility, .
Disclaimer
Official App Store Link
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