iPhone/iPad
Get Breathing Games on AppStore (click)
Optional: New games/apps that are not yet in Apple Appstore can be downloaded from here but first you need to install "app cake" from here and then you install each IPA file (breathing game/app) with "app cake", learn more here.
Android
Get Breathing Games on Google Play (click)
Optional: New games/apps that are not yet in Google Play can be downloaded from here, but you need to allow 3rd party installations and then install from APK file, learn more here.
Windows
*Adobe AIR required: download Adobe AIR
Mac OS X
*Adobe AIR required: download Adobe AIR