Here is a list of some popular health apps for Android devices along with their pros and cons:

1. MyFitnessPal
Pros
Free to use, large database of foods and exercises, has a large user community for support and motivation, offers tracking for various health metrics such as weight, nutrition, and exercise.
Cons
Some users have reported issues with the accuracy of the nutrition information, may require manual data entry which can be time-consuming.
Download Link: https://play.google.com/store/apps/details?id=com.myfitnesspal.android
2. 7 Minute Workout
Pros
Free to use, offers a variety of high-intensity interval training (HIIT) workouts that can be completed in just 7 minutes, user-friendly interface.
Cons
May not be suitable for people with injuries or mobility issues, workouts may not be as effective for advanced fitness levels.
Download Link: https://play.google.com/store/apps/details?id=com.popularapp.sevenmins
3. Fitbit
Pros
Wide range of fitness tracking features, syncs with a variety of fitness devices, offers a social aspect for motivation and support.
Cons
May be expensive for some users, some features may require a subscription.
Download Link: https://play.google.com/store/apps/details?id=com.fitbit.FitbitMobile
4. MyPlate – by Livestrong
Pros
Free to use, offers tracking for nutrition, exercise, and weight, has a large database of foods and exercises.
Cons
Some users have reported issues with the accuracy of the nutrition information, may require manual data entry which can be time-consuming.
Download Link: https://play.google.com/store/apps/details?id=com.livestrong.tracker
5. Instant Blood Pressure
Pros
Free to use, allows users to monitor their blood pressure at home using their phone’s camera and microphone, offers tracking and analysis of blood pressure readings.
Cons
May not be as accurate as a traditional blood pressure cuff, should not be used as a replacement for medical advice.
6. Sleep Cycle
Pros
Tracks sleep patterns and wakes users up during the lightest sleep phase, can help users feel more rested and refreshed in the morning.
Cons
May not be suitable for all sleep patterns, may require manual data entry.
Download link: https://play.google.com/store/apps/details?id=com.northcube.sleepcycle
7. Headspace
Pros
Offers guided meditation and mindfulness exercises to help users reduce stress and improve their mental health.
Cons
Some features may require a subscription, may not be suitable for all users.
Download Link: https://play.google.com/store/apps/details?id=com.getsomeheadspace.android
8. DailyBurn
Pros
Offers a wide range of workouts, including cardio, strength training, and yoga, as well as nutrition tracking and coaching.
Cons
Some features may require a subscription, may not be suitable for all fitness levels.
Download Link: https://play.google.com/store/apps/details?id=com.dailyburn.home.workouts
9. Mayo Clinic App
Pros
Provides health information and resources from the Mayo Clinic, including a symptom checker, appointment scheduling, and access to medical records.
Cons
Some features may require a subscription.
Download Link: https://play.google.com/store/apps/details?id=com.mayoclinic.patient
10. WebMD
Pros
Provides information on a variety of health topics, including conditions, treatments, and medications, as well as a symptom checker and a local health directory.
Cons
Some information may not be accurate or up-to-date, should not be used as a replacement for medical advice.
Download Link: https://play.google.com/store/apps/details?id=com.webmd.android
11. Calorie Counter by MyFitnessPal
Pros
Free to use, tracks calories and nutrients, offers a large database of foods and exercises, has a large user community for support and motivation.
Cons
Some users have reported issues with the accuracy of the nutrition information, may require manual data entry which can be time-consuming.
Download Link: https://play.google.com/store/apps/details?id=com.myfitnesspal.android
12. MyWater
Pros
Free to use, tracks daily water intake and reminds users to stay hydrated, user-friendly interface.
Cons
May not be suitable for all users, may require manual data entry.
Download Link: https://play.google.com/store/apps/details?id=com.victorsharov.mywaterapp
13. Pill Reminder & Tracker
Pros
Free to use, helps users keep track of their medication schedule, offers reminders and alerts.
Cons
May not be suitable for all users, should not be used as a replacement for medical advice.
Download Link: https://play.google.com/store/apps/details?id=eu.smartpatient.mytherapy
14. Pregnancy Tracker & Baby App
Pros
Free to use, offers tracking and information for pregnant women and new mothers, includes a variety of tools such as a kick counter and contraction timer.
Cons
May not be suitable for all users, should not be used as a replacement for medical advice.
Download Link: https://play.google.com/store/apps/details?id=com.wte.view
15. First Aid by American Red Cross
Pros
Free to use, offers information and instructions for a variety of first aid situations, includes videos and interactive quizzes.
Cons
Should not be used as a replacement for medical advice, may not be suitable for all users.
Download Link: https://play.google.com/store/apps/details?id=com.hurix.arc.cloudreader
As with any health app, it’s important to consider factors such as price, popularity, authenticity, ease of use, and data protection when choosing one to use. It’s also a good idea to consult with a healthcare professional before making any changes to your health routine.