Chess Memory vs Blundr
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Chess Memory
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Discover Chess Memory, the innovative application that transforms your visual memory into a real strength, while immersing you in the captivating world of chess! Inspired by the incredible abilities of chess grandmasters to memorize complex positions on the chessboard, Chess Memory offers a fun and progressive approach to strengthen your mental agility. The concept: learn to memorize like a grandmaster Chess grandmasters don’t just play, they visualize and memorize. Their ability to remember the exact position of dozens of pieces, or even an entire game, is legendary. This talent is not reserved for an elite: it is a skill that Chess Memory allows you to develop, whatever your level. The principle is simple and addictive: you start by memorizing the position of 2 pieces on the chessboard. Once you master this exercise several times, a new piece is added. As your progress accelerates, the challenges become more and more complex, challenging and strengthening your visual memory, concentration and patience. Why play Chess Memory? By playing Chess Memory, you do much more than have fun. You actively stimulate your brain and improve essential skills such as: - Visual memory: By remembering the configurations of the chessboard, you work on your ability to visualize and memorize spatial information. - Concentration: The exercises require sustained attention, perfect for strengthening your ability to stay focused. - Mental resilience: Each challenge you overcome strengthens your perseverance when faced with complex tasks. Take on the challenge, piece by piece, and discover how far your mind can go with Chess Memory. Let your memory evolve like that of the greatest masters!
Blundr
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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.
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Verdict
The clearest difference is price: Blundr at Free against Chess Memory's $1.99. Chess Memory's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Blundr is free to download; Chess Memory costs $1.99 up front. Blundr sells 2 in-app purchases, starting at $12.99 per month. Chess Memory asks for nothing beyond the download.
| Parameter | Chess Memory | Blundr |
|---|---|---|
| Price | $1.99 | Free — better |
| Update frequency | — | Every 4 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 1 MB | 32 MB |
| Age rating | 4+ | 17+ |
| Developer | Sylvain Lambert | Christopher Macier |
In-app purchases
Chess Memory
No in-app purchases
Blundr
- Blundr Pro$12.991 Month
- Blundr Pro$104.991 Year









