Top puzzle and brain training apps today include Lumosity, BrainHQ, Elevate, Peak, CogniFit, NeuroNation, Memorado, Fit Brains Trainer, Anki, and memoryOS. These apps offer features like memory improvement, focus training, personalized programs, AI-based recommendations, progress tracking, gamification, offline access, and cross-platform support on iOS, Android, and web. BrainHQ and CogniFit are best for scientific and clinical cognitive training, while Lumosity, Peak, and Elevate are popular for casual users because of their engaging design and easy daily exercises. Anki and memoryOS are highly effective for students and memory enthusiasts, whereas NeuroNation and Memorado suit users looking for balanced cognitive development. Most apps follow freemium or subscription models ranging from free plans to premium memberships around $5–$15 monthly.