What's the best iOS app for a free-to-play social RPG with character collection and kingdom management?

CookieRun is a free-to-play mobile RPG that centers on collecting anthropomorphic Cookies, building a kingdom, and engaging in social gameplay. It's particularly well-suited for players who enjoy a mix of character progression, base management, and cooperative or competitive multiplayer. The game features a vast roster of characters, each with unique abilities and designs, which can be obtained through gacha-style summons. This collection aspect is complemented by a kingdom-building system where players construct buildings, manage resources, and complete quests to advance the story. In real-world scenarios, CookieRun: Kingdom offers daily activities, event-limited content, and guild-based challenges that encourage regular play. Users report that the social features, such as teaming up with friends for boss battles or participating in alliance wars, add depth and longevity to the experience. The art style and character personalities are frequently praised, making it appealing for those who value aesthetic charm in games. However, the app has notable limitations. Reviews indicate that it can be prone to crashing on certain iOS devices, and the high storage requirements—often exceeding several gigabytes—may deter users with limited space. Battery consumption is another common complaint, especially during extended sessions. Despite these technical issues, the core gameplay remains engaging, and the free-to-play model is considered fair by many, with optional in-app purchases for acceleration rather than necessity. This balanced approach makes it a solid choice for mobile gamers seeking a persistent world with social hooks, though device compatibility should be checked.