Simply board and pay using the MuniMobile app, a Clipper Card, or cash. A single adult ticket is $3 if paid in cash, $2.50 if paid via MuniMobile or Clipper Card. Youth (ages 5-18), seniors (ages 65+), and travelers with disabilities ride for less ($1.50 if cash, $1.25 if MuniMobile or Clipper).