C$, also known as; Coins, Credits, Cash, or Cents, is used for purchasing Fishing Rods, Baits and other useful tools such as: Gliders, Flippers, etc.
Fishing Spots:
You can use coins to unlock new fishing locations, which can offer access to rarer and more valuable fish.
Upgrades:
Coins can be used to upgrade your fishing gear, such as rods, bait, and other tools, to improve your chances of catching better fish.
Other In-Game Resources:
Coins can also be used to purchase other items, such as tokens, which can be used in special events or to obtain rare rewards.
Fishing Events:
Use them to purchase event-specific items.
Reminders and Guidelines: