Both use spaced repetition. The difference is where your lines come from. Chessable sells you courses. Openings.gg lets you import from anywhere.
Flat rate. Unlimited imports, repertoires, and training. 14-day free trial, then $5/month. Cancel anytime.
Per-course pricing. A full White + Black repertoire can run $100-200+. Pro membership ($99/year) unlocks some courses.
Chessable is a marketplace. You buy expert-curated courses and train them. The content is high quality, but you're locked into what's published.
Openings.gg is a toolkit. Paste a YouTube URL and get drillable lines. Import Lichess studies with one click. Build exactly the repertoire you want.
Many players use both: Chessable for deep GM courses in their main openings, Openings.gg for everything else - YouTube lines, coach recommendations, Lichess studies, custom sidelines.
Import from YouTube, Lichess, or PGN. 14-day free trial.