Free: $0. Pro: $9.99/month, $69/year, or $149 lifetime (early-bird for first 100 buyers, then $249). Pro covers up to 100 Coach-explained games and 50 scoresheet photos per month.
Key features
Anagram Generator with support for eight languages
Scrabble Word Finder with NWL23 and Collins CSW24 dictionaries
Information theory-based Wordle Solver
Synonym Finder with parts of speech grouping
Rhyme Finder grouped by syllable count
Crossword Maker with clue suggestions
Word Search Maker with three difficulty levels
Runs entirely in browser with no server processing
Offline functionality with cached dictionaries
Accuracy scoring based on winning chances
Move labels: inaccuracy, mistake, blunder
No account required for free review
Import games from Lichess or Chess.com
Coach written explanations in plain language
Scoresheet photo to PGN conversion
Suspected mistakes checked twice at greater depth
What makes it different
Fast, mobile-friendly performance with no unnecessary dependencies
No login walls or dark patterns, plain vanilla JavaScript
Information theory optimization for mathematically optimal Wordle moves
Dual Scrabble dictionary support for North American and international play
Honest labeling: mistakes rechecked deeper before labeling
No uploads for free review: analysis runs locally in your browser
Free review never requires account or has daily limits
One-click review for returning users with remembered username
LexiLab
Explain My Chess