Here are some of the top apps for fitness and health:

1. MyFitnessPal: This app is a popular choice for tracking calories, macronutrients, and other nutritional information. It offers a comprehensive food database and allows users to set fitness goals, track their progress, and connect with friends for support.
2. Nike Training Club: This app offers free workout routines designed by Nike trainers, including bodyweight workouts, yoga, and more. It offers video tutorials and step-by-step instructions, and users can track their progress and set reminders for workouts.
3. Headspace: This app offers guided meditation and mindfulness exercises to help users manage stress, improve focus, and promote relaxation. It offers a variety of sessions for different needs and preferences, and users can track their progress and set reminders for daily meditation.
4. Fitbit: This app works with the popular Fitbit wearable device to track physical activity, sleep, and other health metrics. It offers personalized insights and goal tracking, and allows users to connect with friends and join challenges for motivation.
5. Couch to 5K: This app is designed to help users go from couch potato to running a 5K race in just eight weeks. It offers a progressive training program with audio coaching, and allows users to track their progress and share their achievements.
6. WaterMinder: This app helps users track their water intake and stay hydrated throughout the day. It offers customizable reminders, a visual log of daily water intake, and goal tracking for staying on track.
7. Clue: This app helps women track their menstrual cycle and fertility, offering personalized insights and predictions based on their unique data. It offers customizable reminders and allows users to share their data with healthcare providers.

These apps can be great tools for tracking progress, staying motivated, and maintaining a healthy lifestyle. However, it is important to consult with a healthcare provider before starting any new exercise or diet program.