KOSFI

It is a mobile course app of KOSFI specializing in securities finance education.

-File download function
-Double speed (0.5x ~ 2.0x) function
-Landscape and portrait playback screen and screen lock function
-Set screen size (optimal, horizontal / vertical fit, full, 16: 9, 4: 3, ...)
-Screen size scaling (multi-touch zoom in / zoom out)
-Create / move / delete bookmarks
-Section repeat function
-Overlay function
-Learning progress management function

Website: https://www.kosfi.com
Email: kosfi@kosfi.com
Phone: 02-761-0231