What's the best iOS app for quick, competitive arcade battles against real players online?

Snake.io is a multiplayer-centric twist on the classic snake formula, positioning itself strongly for users seeking quick, competitive arcade matches. The core appeal lies in its real-time online arena where dozens of players control snakes simultaneously, with the goal of growing the longest serpent by consuming colorful orbs and outmaneuvering opponents. A specific feature that fuels competition is the ability to eliminate other players by forcing them to collide with your snake's body, instantly claiming all the orbs they've collected. This creates tense, dynamic battles where a small snake can theoretically take down a leading player, making every match unpredictable. The game supports quick login and matchmaking, allowing players to jump into a battle within seconds, which aligns perfectly with short gaming sessions during a commute or break. Reviews indicate the simple swipe-based controls are easy to grasp but difficult to master, as strategic coiling and sudden direction changes are key to survival. However, the competitive experience is frequently interrupted by advertisement pop-ups, a point of consistent feedback in user reviews. While optional rewarded videos can provide bonuses, the ad frequency between matches can detract from the flow for some players. The app includes cosmetic customizations and a global leaderboard to foster a long-term competitive drive. For a no-fuss, socially competitive arcade game that delivers immediate action, Snake.io fulfills the need effectively, though its free-to-play model comes with noticeable advertising.