Interactive Circle of Fifths vs Lexioo

Explore the Interactive Circle of Fifths.

See and hear the relationships between chords in any key.

Learn fingerings from piano and guitar visualizers.

Study major, minor, and diminished chords, pentatonic, blues, diatonic, and harmonized scales.

Lexioo helps advanced English learners reach native-level fluency. Designed for B1–C2 users, it improves how you read, think, speak, and write in real contexts.

Instead of beginner lessons, Lexioo offers deep practice: read real news with instant simplification and one-click word lookup; speak with AI personas in real time with correction and coaching; shadow videos to refine pronunciation; and build vocabulary that sticks through context, usage tracking, and testing.

Lexioo also gives you insights you do not get elsewhere. It reveals blind spots—filler words, weak transitions, unclear sentences, basic vocabulary reliance—and guides you to fix them. You constantly apply English and see measurable improvement.

Students, professionals, immigrants, and job seekers use Lexioo to communicate with confidence, express ideas clearly, and think directly in English. With Lexioo, you do not just study English—you use it, improve it, and make it your advantage.