ChessMem vs ChessFlow

One of the most versatile chess training apps there is: 162 openings, 27 traps, 44,000 rated tactics, your own lines, scanned book diagrams and any position you can set up, with spaced repetition to make the lines stick. Play a game or practice your openings with the AI Coach. ChessMem turns opening study into something you actually finish. Instead of watching videos and forgetting everything by your next game, you practice master-verified lines until they're automatic. HOW IT WORKS Pick an opening. Drag pieces to play the correct moves. Wrong moves show you the right answer. Score 100% and the line enters Mem Mode, where spaced repetition brings it back at increasing intervals — first after a day, then three, then a week, growing from there. By the time you sit down to play, the moves are automatic. PLAY AGAINST THE AI COACH Play a full game from any opening against five engine levels. The coach flags mistakes as they happen and reviews the game with you when it ends. NEW TO CHESS? START HERE A short guide on your first line covers the board, how moves are written (e4, Nf3, O-O), and what every control does. Reopen it any time from Help. TACTICS AND CHECKMATE PATTERNS 44,000 rated puzzles from the Lichess open database, served around your level, with your own puzzle rating that moves on your first attempt at each one. Drill the named checkmates on their own — smothered mate, back-rank, Anastasia's and more — until you see them on the board. ADD YOUR OWN LINES AND POSITIONS Your repertoire isn't only what we ship. Record moves on the board, paste a PGN or FEN, scan a page from a chess book with your camera, or set up any position in the board editor. Anything you add practices and memorizes exactly like a built-in opening, syncs across your devices, and exports as PGN to send to a friend, a coach or a student. OPENING TRAPS 27 traps built into the openings — lines that win games when your opponent walks into them. Learn the ones in your favorite openings, spot them when they're tried on you, and add a few sneaky weapons of your own. A REAL REPERTOIRE, NOT JUST A LIST • 162 curated openings, 12,700+ lines • Up to 15 moves deep on main lines • Every move verified against the Lichess Masters Database • A depth slider you control — main line only, then key lines, common deviations, or everything, one opening at a time A STARTER REPERTOIRE IN ONE QUESTION Not sure what to learn first? Answer one question about the kind of chess you want to play — Classical, Aggressive, Creative, Complex or Practical — and a White opening plus answers to both 1.e4 and 1.d4 go straight into your Favorites. AI EXPLANATIONS AND PLANS Stuck on why a move is the right one? Tap for a plain-English explanation of the idea behind it — the threat, the plan — demonstrated on the board, move by move. It works on tactics as well as openings. Every opening also comes with a plan: what you're aiming for, and what your opponent wants. LEARN FROM YOUR REAL GAMES Connect your Chess.com username and get a report on the openings that are actually costing you points, so you know which lines to drill next. TRACK PROGRESS, EARN BADGES Every opening fills in as you complete lines and variations. Hit 100% on every line and you earn a permanent badge — go gold by topping the leaderboard. Favorites, Mem Mode and progress bars keep you focused on what needs work. SYNC ACROSS DEVICES Sign in once and your progress, favorites and review schedule travel with you between iPhone, iPad and the web. FREE TO START Every day: five practices across openings, traps and Mem Mode, five tactics, three AI explanations and a coached game, with unlimited retries. Each month: three book scans. Premium removes the limits and adds unlimited AI explanations, more scans, the full opening tree and game reports. Stop reviewing the same openings and start memorizing the moves that win games. Terms of Use (EULA): https://chessmem.com/terms Privacy Policy: https://chessmem.com/privacy

ChessFlow is the training app built for tournament players - openings, middlegames and endgames - and the only one that lets you drill them on a real electronic chessboard. Train your lines on screen, or connect your Chessnut board over Bluetooth and practice with real pieces in hand, guided by the board's LEDs. Then let spaced repetition bring each line back right before you'd forget it, so your prep actually sticks. TRAIN ON A REAL ELECTRONIC BOARD Connect your Chessnut (Go, Air, Air+, Pro) and train with the pieces in your hands. The LEDs guide you - steady light for your opponent's move, a blink for a hint, a fast blink when the app plays the move for you. Make a mistake? Retry, ask for a hint, or let the app show you. REMEMBER YOUR OPENINGS WITH SPACED REPETITION ChessFlow uses an SM-2 algorithm adapted for chess openings: every line returns right before you're likely to forget it. Only a perfect run speeds up the schedule; anything shaky comes back tomorrow. No line ever disappears for months. A seven-day forecast shows how many lines come due each day, so you always know when a backlog clears. DRILL YOUR WEAK SPOTS ChessFlow tracks the positions where you go wrong most often and serves them back as targeted puzzles. Turn on Drill random positions for an endless stream of positions from the lines you've trained in the open repertoire - a fast way to keep it sharp. PRACTICE ANYWHERE ON THE VIRTUAL BOARD No hardware needed. Train on screen with tap-to-move and premove, just like chess.com and lichess. Your iPad becomes a training station; your iPhone keeps your repertoire in your pocket. PLAY IT OUT AGAINST STOCKFISH Stop anywhere in a line and play the position out against Stockfish 19, at a strength you choose. Explore variations in free analysis, with a slim evaluation bar beside the board, and export them. With ChessTools, our free clock app, on your iPhone, ChessFlow presses the clock for you. YOUR REPERTOIRE, FROM ANY SOURCE Keep building your repertoire in the chess app you already use - Chess Studio, for example. Link its iCloud folder and ChessFlow reads those PGN files without ever changing them: you study and edit there, you train here. Add a variation there and it's waiting the next time you open the file, with all your progress kept. You can also import single PGN files or paste FEN positions. Attach a course PDF or your notes to any repertoire; PDFs even reopen at the page you left, on every device. BUILT TO KEEP YOUR DATA SAFE Everything syncs across your iPhone and iPad via iCloud - lines, progress and colors. Training progress is merged across devices, never overwritten. Automatic daily backups, plus manual export and import. EXPORT & SHARE Copy or share your lines as PGN for lichess and chess.com. Export your games versus the computer as PGN or a tournament-style PDF scoresheet. Free to try, with a 14-day full-access trial. Subscriptions unlock unlimited training on the virtual board, or everything including the physical board. Requires iOS 17 or later. iPhone and iPad, one app. Questions or feedback? developer@chesstools.it Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.chesstools.it/chessflow/privacy.html