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Easy. Because the app will use the API, reducing the load on the overall Binance website. Often in busy times the website can be overloaded but the API will still be available.

Try it and you will see the difference in just price action, the API is a lot faster as stated before. What your missing, is the fluidity that you will get from the application rather than just going to the site is hands-down not comparable. For anyone who trades with #volume this means #MONEY! @ezimedia! @kingscrown Thanks for the awareness as usual.