Free
$0
Full workstation on this device. No account required.
- Engine analysis & notation
- 10M+ game database search
- Opening book explorer
- PGN import up to 20,000 games (local)
- FSRS repertoire training
Pricing
Core preparation tools are free — no account required. Pro adds AI commentary, collaboration, and expanded cloud storage.
Pro
$9/mo
$84/yr — save 22% · Cancel anytime
AI GM Commentary
Narrative analysis on critical moments — like a published annotation.
Deep Annotation
Full-game structured write-up with opening, middlegame, and endgame arcs.
Collaboration
Shared boards and live co-analysis with a coach or training partner (beta while we harden sync).