Each Old Pouch can be upgraded up to Level 5. Each level requires different amounts of $SHINYBITS to upgrade. There may be a hidden level after 5 that can only be accessed during a certain time. There is unknown power here.

Leveling Up Old Pouches

• Level up from Level 1 to 2 -
  70 $SHINYBITS (70 days at Lvl 1)
• Level up from Level 2 to 3 -
  350 $SHINYBITS (175 days at Lvl 2)
• Level up from Level 3 to 4 -
  3500 $SHINYBITS (875 days at Lvl 3)
• Level up from Level 4 to 5 -
  30000 $SHINYBITS (3750 days at Lvl 4)