Loyalty Program Apps on Smartphones: A collection of smartphones arranged in a grid pattern on a white surface, each displaying a loyalty program app with various features and rewards. The phones are positioned at an angle, showcasing their screens from multiple perspectives. The apps' interfaces display different elements such as badges, points, levels, stamps, stars, and trophies, indicating the gamification aspects of the loyalty programs. Some screens feature icons for shopping, gifts, or exclusive offers, while others show progress bars or leaderboards displaying rankings. The overall impression is one of a well-organized and visually appealing display of loyalty program apps on smartphones.