Blunderzone vs Chess Trainer

Turn your chess mistakes into focused practice with Blunderzone. Connect Lichess or Chess.com, review your games, and train the positions where you missed a better move. • Game Tactics: puzzles from your own games. • Quick Tactics: short sessions of 10 puzzles. • Memory Training: revisit positions with spaced repetition. • AI explanations: understand mistakes and better continuations in your account language. • Track your progress, training streaks and game statistics. • Optional reminders help you keep a training routine. Choose from 20 interface languages. Free, Basic and Premium plans offer different game import, analysis and AI explanation allowances. Paid memberships are optional; prices are shown in the app before purchase. • 20 AI explanations / 100 AI explanations. One-time purchase. Credits never expire and are shared across your devices. One credit unlocks one new explanation. Privacy Policy: https://blunder.zone/privacy-policy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Chess is not learned from a book — it is learned on the board. Chess Trainer makes you PLAY every idea: every lesson ends with positions you must win yourself, and every pattern becomes a move your hands know. THE ROAD Short lessons you play, not read. Watch each idea arrive move by move, replay it as often as you like, then prove it — three positions where you deliver the mate yourself, and a boss game to seal the unit. CHECKMATE PUZZLES Mate in 1, 2 and 3, every solution engine-verified. Learn the 29 named checkmate patterns — back rank, smothered, Anastasia and the rest — and collect them in the Mate-dex: a card is engraved the first time YOU deliver that mate in a real position. 5,000 RATED PUZZLES From 400 to 2400, by theme: forks, pins, mates, defence, endgames. A puzzle rating that moves after every puzzle, a daily puzzle for your level, and a streak. PLAY • Our own on-device bot: plays anywhere, no internet needed, free forever. • Rated levels from 1350 to 2850 Elo, powered by Stockfish — the world's strongest open-source engine — running on our servers. • Pass & play with a friend on one device. GAME REVIEW Every move graded, from Brilliant to Blunder, with an accuracy score for both sides. See what the engine would have played, step through the game move by move, and keep the review forever — reopening it is free, even offline. Every mistake gets a sentence — what it cost, what it allowed, what was better — and you can retry the move. FAIR BY DESIGN Journey Level 1 with its lessons and every offline opponent are free, including five characters that start at true-beginner strength and get a little harder at each step. Every day you also get 10 rated puzzles, one Stockfish game, one game review and 3 takebacks or hints in bot games. Coins buy one more. Chess Trainer Pro opens Journey Level 2 and every level after it, and makes puzzles, Stockfish games, reviews, takebacks and hints unlimited. No ads, ever. No account, no login. 13 languages. Built for iPhone and iPad. Subscription details Chess Trainer Pro is available as a monthly or yearly auto-renewing subscription, or as a one-time lifetime purchase. Payment is charged to your Apple Account at confirmation of purchase. A subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Manage or cancel anytime in Settings → Apple ID → Subscriptions. Privacy Policy: https://chesstrainer-web.web.app/privacy/ Terms of Use (EULA): https://chesstrainer-web.web.app/terms/