Get COSUF for Android

COSUF isn't on the Play Store — download the app directly from this page.

Download for Android (1.1)

Installing the APK

Since this isn't a Play Store install, Android will ask you to allow installs from this source the first time — this is a normal one-time prompt for apps installed outside the Play Store, not a sign anything is wrong.

  1. Tap the download button above and open the downloaded file.
  2. If prompted, allow your browser to "install unknown apps."
  3. Tap install, then open COSUF once it finishes.