Here are useful and up-to-date recommendations:
How to change the difficulty level
Open the selected course and choose a level: beginner, intermediate, or advanced.
In some courses, you can take a placement test — the app will adjust the content based on your results.
If the desired level isn’t available, you can simply start a different course that better matches your skill level.
How to review previously learned words
Go to the Review section, select the course, and tap Review words.
Use Quick Review or Difficult Words (available in the Pro version).
Words you struggle with are automatically added to the review list and will appear more frequently.
If you want to restart a course completely
In the course settings, you can reset your progress and go through the course again.
This is useful if you want to refresh the material before moving on to a higher level.
Tips for effective review
Review in short daily sessions rather than long sessions once a week.
Use both visual and audio input to improve retention.
Enable study reminders to keep a consistent learning routine.
If Memrise tracks progress incorrectly or limits review features, file a complaint on Xolvie. This can help push for fixes and improve the learning experience.