When I was 18 years old, a psychologist told me how to save vocabularies for university entrance exam.
He said when you see a new vocabulary, write it in a flash card and review it tomorrow.
If you answered correctly, review it two days later, else consider it new vocabulary.
If you answered correctly after two days, review it four days later, else consider it new vocabulary.
Continue this process.
I used this guide and got good answer, but I'm not in mode of paper flashcards so I write this app.
I may write its android app later.
Just extract dist.rar and run main.exe
After running the app, you can add, remove, or take a quiz if your reviewing time has come.
I hope this helps you in memorizing vocabulary
Tried to look good by colors, but if you don't like it, please comment