Slide 1: Best 10 Brain Training Apps. Slide 2: Introduction: Why Brain Training?. Slide 3: Criteria for Selection. Slide 4: Lumosity. Slide 5: Peak. Slide 6: Elevate. Slide 7: CogniFit. Slide 8: BrainHQ. Slide 9: Other Notable Apps. Slide 10: Conclusion & Recommendations