Free chess game analysis and personalized training built from your own games
Stage
Not given
Startup
Founded
Not given
2026
Based in
Not given
Not given
Pricing model
Free
Freemium
Pricing
Not given
Free plan includes game reviews (150 per day limit), puzzle practice, Blunder Preventer, one free session weekly of each premium trainer, 2 repertoires up to 10 lines each, and one scouting report monthly. Premium costs $2 per month, $12 every 6 months, or $20 per year, unlocking unlimited access to
Key features
Supports 57 games including Valorant, CS2, Apex, Fortnite, Overwatch 2, Warzone and R6 Siege
Matches cm/360 (mouse distance for full 360° turn) across games
eDPI calculator tool
DPI calculator and mouse DPI test
cm/360 calculator
Sensitivity finder tool
Runs entirely in browser with no sign-up needed
Values cross-checked against at least two independent sources
Handles both fixed-angle and curve-based sensitivity games
Move-by-move Stockfish analysis of Chess.com and Lichess games
Blunder Preventer trainer to spot tactical mistakes
Opening Improver with opening encyclopedia and repertoire trainer
Time Trainer for practicing under time pressure
Visualization module for calculating forcing lines
Resourcefulness training for difficult positions
Scouting report showing skill breakdown and training recommendations
Analysis board with Stockfish 19 running in browser
Daily chess puzzles
What makes it different
Every sensitivity value is measured against independent sources, never guessed
Physical measurement standard (cm/360) that works across all games
Completely free with no account or sign-up required
Values automatically tested and regularly updated when games change
Personalized training built specifically from patterns in your own games rather than generic material
Recurring mistake detection that turns common errors into focused training modules
Free game analysis without sign-up for casual users
Integration with Chess.com and Lichess accounts for automatic game import
Affordable premium pricing starting at $2 per month
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