Collector is a free multimedia application designed for iPhone users, allowing players to create original cards using AI technology. Users can generate images for their cards simply by describing them with short phrases, such as "fire dragon." This user-friendly card creation process is complemented by the ability to engage in battles with other players, where the outcomes are determined by elemental strengths, similar to rock-paper-scissors mechanics.

In addition to battling, players can collect cards through gameplay and enhance their collection. Each card accumulates data such as levels, battle records, and user interactions, contributing to its overall value. Players can also obtain item packs after battles, which contain model cards and decorative items, as well as "generation crystals" needed for image creation. Collector offers an engaging experience for card enthusiasts and casual gamers alike.