I’m using an app called Baicizhan. It’s very useful if your primary goal is to increase your English vocabulary. You can memorize words in a very simple yet effective way. It’ll show you a word with four pictures, you’ll have to choose one that can explain the word perfectly. It will leave an impression of the word inside your brain whether you chose the right picture or the wrong one. Then it’ll show the word with the picture from time to time until you memorize it completely. The app also has a session called Aiyuedu. In Aiyuedu you can read a lot of short or long stories according to your level. How do you know what level your English skill is? Well it’ll test you when you enter the Aiyuedu for the first time. Only in few minutes you’ll be able to know your level and choose your short stories. Baicizhan is very addictive, in a good way. I’m loving the app and improving everyday. And I can swear to y’all I’m not paid to say this.