Being proficient in Basic English writing and speaking skills is not enough in the modern world. You have to keep on building your vocabulary with time. A good and extensive English vocabulary range will certainly impress employers and put you ahead of the crowd in a social setting. New technology developments now ensure that you can easily improve your English vocabulary without having to enroll in a class. With an Android powered Smartphone or tablet you can build your vocabulary on a daily basis. Below are the 10 best English vocabulary improving apps for Android.