Where can I find a really effective application for learning foreign languages that is suitable for both beginners and advanced learners?

If you are looking for a convenient application for learning a foreign language, it is important to focus on the interface, methodology and availability of interactive tasks. Many users advise you to try several options to understand which learning style is right for you. For example, I found a useful selection on the french learning app website, which contains various applications with reviews and descriptions of functions — this greatly simplified my choice.