Study text, the application compares the text you entered with the correct text for you.
Memorize texts in a cumulative way, so that if you memorize a text today, you do not lose it after a year. If you do not increase, at least, you do not decrease.
Reduce the chance of forgetting the texts you have memorized.
Not to leave old texts so you forget them.
Know how to pronounce words, if you are memorizing vocabulary (depends on the text-to-speech application on your device).
Repeat studying the new texts in multiple consecutive days, until it is installed in your mind.
Focus on studying the texts that you often answer wrongly.
Focus on studying the texts that you consider to be more important to you.
Test yourself when you want.
Test yourself at random times of the day, so stay prepared.
Note: Study a Period, Enhanced Test, Fully Random Test and Schedule features need you to subscribe to use it. The subscription costs some money.
Thanks for Aya Sameh for helping me at the app layout design.