Subway Surfers Unlimited Coins is a major feature in many modded APK versions of the game. Coins are the main in-game currency used to purchase hoverboards, power-ups, and upgrades that enhance gameplay. In the official version, collecting coins can take time and effort, often requiring players to complete missions or participate in events. With unlimited coins, players can skip the grind and immediately access all upgrades and tools needed for high scores. This makes the game more accessible and enjoyable, especially for casual players who want to explore everything the game offers without spending hours collecting currency.