Please conduct research and create a comprehensive list of the top 15 health and fitness apps that are available for download on your smartphone. Your list should include a brief description of each app, its features, the pricing model, and any user reviews. Additionally, your list should cater to individuals with varying fitness levels and goals, including but not limited to, weight loss, muscle gain, and stress reduction. Please present the list in an organized and easy-to-read format, ensuring that it includes both iOS and Android compatible apps.
This prompt doesn't seem malicious.