Free to play with first 10 packs included. Optional WikiCoin and Premium purchases available.
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
Open card packs with 10 random Wikipedia articles
Six rarity tiers based on article view counts
Create and publish personal card collections
Complete thematic albums with automatic card matching
Community voting on published collections
Trade cards with other players
Free packs regenerate over time up to capacity
Multiple pack types including Gold and Legendary packs
Card details link to source Wikipedia articles with attribution
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
Built around the entire English Wikipedia catalog
Independent from Wikipedia and Wikimedia Foundation
Community-driven collection showcase and voting system
Free forever core gameplay without premium requirement
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
WikiCollector
Explain My Chess