Polyo vs OpenCube

Polyo helps you track your language study across multiple languages and skills. Log your hours. Categorize your activities. Monitor your growth. Whether you're learning Spanish, French, Korean, or more, Polyo gives you a simple way to stay consistent and accountable. Built for learners who care about long-term progress.

Solve your cube and understand every turn. OpenCube is an offline cube solver, learning guide and speedcubing timer. Scan each face with your camera or enter stickers by hand, review the colors and follow an animated 3D solution. SCAN AND SOLVE Review and correct stickers before solving. Solutions are checked against the entered state. Follow turns on a draggable 3D cube, a flat net or a notation list. Camera results depend on lighting and the puzzle; manual correction is always available. LEARN AND PRACTICE Start with the free 3×3 Beginner course. Explore CFOP and Roux with animated examples, explanations and interactive algorithm practice. Try moves on a virtual cube. There are also 2×2 courses and lessons for larger cubes, Pyraminx, Megaminx, one-handed solving and blindfolded techniques. TIME YOUR SOLVES Hold to start, use optional 15-second inspection, apply +2 or DNF penalties and track ao5, ao12 and your best time. Scrambles suit the selected puzzle: random-state for 2×2, 3×3 and Pyraminx, random-move for 4×4 and 5×5, and Pochmann for Megaminx. FREE AND PRO 2×2 and 3×3 solving and timing, the complete 3×3 Beginner course and 2×2 courses are free. Try the first stages of CFOP, Roux and other courses. OpenCube Pro is a single purchase with no subscription. It adds 4×4, 5×5, Pyraminx and Megaminx solving and timing; the remaining advanced course stages; CFOP and Roux method solutions; full history and all-time statistics; case-specific and saved practice scrambles; and alternate color schemes. The purchase price appears in your store's currency. Purchases are managed separately by each store. OFFLINE AND PRIVATE No account, ads or analytics. Puzzle processing and your solve history stay on your device. Purchases and review requests use your platform's store services. Available in English, Arabic, Turkish, French, Spanish and German.