I add new words in my app everyday to recite them. It is a way for me to learn English. It is more uesful for me to remember new words. I used Shanbey, a kind of app in the past. I had persisted for over 200 days. Then I realized It was not fit me. I only remember the words, but I can't use them. These words are irregular, only are collected in CET-4 or CET-6 books. Now, I collect new words in my life, put them into defferent groups, such as food, kitchen, clothes, review them everyday, I wish I could use them finally. Maybe It is a Good way.