Sololearn – Multiple Languages, One Powerful Platform : Sololearn supports over 20 programming languages, including Python, C++, Java, and SQL. It offers mini-lessons, code playgrounds, and real-world examples for each language. Users can write and run code right inside the app, participate in community challenges, and get answers to coding questions. With both beginner and intermediate content, Sololearn grows with you as your skills improve. Its social features connect learners and create a supportive environment for feedback and learning.