What's a good free iOS game for quirky and strategic cat battles?

The Battle Cats is an excellent choice if you're looking for a free and quirky strategy game on iOS. It combines tower defense mechanics with bizarre cat characters, creating a unique and engaging experience. The game is free-to-play friendly, offering optional ads for rewards, which is a refreshing approach compared to many other mobile games that bombard you with ads. You'll deploy various cat units, each with special abilities, to defend your base from waves of enemies. As you progress, you can unlock and upgrade new cats, expanding your strategic options. The game's humor and unconventional art style add to its charm, making it a delightful experience for casual and hardcore gamers alike. Plus, the frequent collaboration events, like the mentioned Sonic collaboration, keep the game fresh and exciting.