Health and fitness applications are a major category on smartphone app stores, representing about 20% of available apps. These apps cater to a wide range of users, including doctors, patients, athletes, and anyone concerned with their health. They offer specialized tools for areas like sleep tracking, exercise, and social networking for health communities. The iPhone is a good platform for health apps due to its large app store, connectivity, and sensors that support features like GPS and activity tracking. Examples given are Sleep Cycle alarm clock and Nike+ GPS.

3. Android market - Google

4. OVI store - Nokia

5. App Catalog-Palm/HP

6. Windows marketplace for mobile- Microsoft

7. The app store

9. Specializing on a particular category.

10. Wide range of apps due to wide topics.

11. Wide range of targets.

12. An example on specialization

14. Categorizing based on target.

15. Categories in appstore

17. Sportsperson(professional or Amateurs )

18. Anyone who is concerned about his/her health

19. and fitness.

21. Doctor-Patient networking.

22. Help groups.

24. Over 6.5 billion download(200 per second)

25. Friendly SDK.

26. gyroscope,GPS,accelerometer

27. Constant connectivity,portability.

29. Nike + GPS

30. Sleep clock alarm cycle

31. Reviews and ratings

32. Nike + GPS

33. description

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