NLingo uses spaced repetition scheduling to help you retain vocabulary over the long term. Words are shown at increasing intervals based on how well you remember each one.
After saving a word, it enters your review queue. During a review session:
Over time, words you know well appear less often, freeing up review time for words that need more practice.
Open the Review section from the dashboard. NLingo shows only words that are due for review today, so sessions stay short and focused.
Each word has an individual progress state. The dashboard shows how many words are due, how many are in progress, and how many you have mastered.