Cynus Chess vs Blundr

Cynus Chess 是一款专为国际象棋爱好者打造的应用，通过蓝牙连接你的智能棋盘设备，实现手机与实体棋盘的无缝同步。 核心功能： - 蓝牙棋盘连接 — 通过蓝牙低功耗（BLE）连接智能棋盘，实时同步棋子位置，在真实棋盘上享受数字对弈的乐趣 - AI 对弈 — 内置 Stockfish 引擎，提供从入门到大师的多难度级别，满足不同水平的训练需求 - 棋盘状态识别 — 自动识别棋盘布局，支持从任意局面开始对弈 - 落子震动反馈 — 每步棋落子时提供触觉反馈，还原真实对弈手感 - 棋局记录 — 自动保存对弈记录，方便复盘分析 无论你是初学者还是资深棋手，Cynus Chess 都能让你在实体棋盘上体验智能对弈的魅力。

Blundr is the chess training app built around YOUR weaknesses. Play, learn, and improve with an AI coach that watches every move and tells you what you missed — grounded in real Stockfish analysis, not vibes. WHAT'S INSIDE • Play vs AI bots tuned from beginner-friendly (≈400 ELO) all the way up to grandmaster strength. • Ranked play against real opponents with ELO-based matchmaking after a 5-game calibration window. • Friends — search by username, send game challenges, see who's online. • In-game chat (consent-gated, with one-tap reporting). • Tactics — hundreds of curated puzzles by theme and difficulty, with retry support. • Practice drills — middlegame plans, endgame technique, opening continuations. Free for everyone. • Opening explorer — full move-by-move PGN replay for the most-played lines. • Post-game AI review — engine analysis, blunder detection, and an annotated game story (3 free per month). BLUNDR PRO For serious improvers, Pro unlocks: • Unlimited AI Coach chat with grounded game context. • Unlimited post-game AI reviews and engine analysis. • Live coaching after every practice drill and opening line — your AI coach narrates every move you make against the engine. • Climb — a personalised training roadmap that targets your weaknesses with daily tactics, opening drills, and ladder game goals. • Date Mode — discover compatible chess players, send invitations, play move-by-move date games. Pro is purchased on the web at blundr.co/pricing and powers your account across both web and iOS. Cancel any time. WHY BLUNDR Most chess apps drown you in courses. Blundr does the opposite — it watches you play, finds the patterns where you lose ELO, and feeds you exactly the position-shapes you need to drill. The AI coach is grounded in your actual games, not a generic curriculum. GROWN-UP MODERATION Chat is opt-in and consent-gated. Every chat surface has a Report button that goes straight to a human moderation queue. Repeat offenders get muted or removed. QUESTIONS / FEEDBACK We read every email at support@blundr.co. Pull-to-refresh on the dashboard is the fastest way to recover from a flaky connection. Terms of Use (EULA): https://www.blundr.co/terms Privacy Policy: https://www.blundr.co/privacy Subscriptions: - Blundr Pro Monthly — auto-renewing monthly subscription - Blundr Pro Annual — auto-renewing annual subscription Payment will be charged to your Apple Account at confirmation of purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. Subscriptions may be managed and auto-renewal turned off in your Account Settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription. — Built for serious improvers.