This calendar was produced to promote a mobile app service, “cashslide,” which shows a mixture of contents and advertisements on lockscreens of mobile devices. The upright triangular prism shape was taken from traditional Korean dressing stand. The dual-view calendar was designed to visualize the cashslide app; the frame of the front view characterizes mobile lockscreen where diverse contents and advertisements are displayed to users, and rear view includes varied illustrations which are all re-interpreted with a unique perspective. Also, the empty space at the bottom has been transformed to a personal tray for practical usage.