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  • TAF

    This app is very helpful and informative for those who are interested in astronomy and science. The user interface is so simple.

  • TAF

    Best mobile security app out there, protecting the phone against viruses that cause popups and unwanted ads.

  • TAF

    There are so many bugs - the messages posted on others profile does not show up and there is no procedure to check the authenticity of the accounts created on the app.

  • TAF

    It has all the chapters covered in an organized manner. It's just that the diagrams that are provided in the chapter are too small and it becomes difficult to understand the labeling done on them.