Recognition for real-world boards.
Faster, more reliable recognition handles screenshots, photos, and printed chess diagrams on your device, so the image stays local.
Chaal
Available on the App StoreScan a chess position. Find the best move.
A chess position in a screenshot, photo, or printed diagram is easy to save and slow to analyze. Most engines make you rebuild the board by hand before you can ask what the best move is.
View on the App Store
A saved chess position should not need to be rebuilt by hand.
That setup gets in the way of study and post-game review, especially when the position came from a book, video, website, message, or another chess app.
Chaal recognizes the position on your device, asks you to confirm only what is uncertain, and returns the best move, alternatives, evaluations, winning chances, and an explanation you can share.
Comparing chess position scanners? Read our Chaal vs Chessvision.ai guide.
Capture the board, confirm what is unclear, and compare the best moves.
Capture or paste the position.
Take a photo, paste an image, choose one from Photos, share a board from another app, or paste FEN, PGN, or a board image link.
Confirm only what is unclear.
Chaal highlights the squares it is unsure about so you can correct them and choose the side to move without rebuilding the board.
Compare the best moves.
See the best move, alternatives, evaluations, winning chances, and a plain-language explanation of the position.
Share or continue the line.
Share the analysis, explore suggested moves, save it automatically, and search past positions or opening names later.
Analysis that keeps you in control.
Confirmation without rebuilding.
When Chaal is unsure, it surfaces the uncertain squares for a quick correction instead of making you review every piece.
Analysis made to share.
Share the best move, alternatives, and evaluations instead of sending a screenshot with no context.
Availability
Chaal is free to download. Chaal Pro is an optional monthly subscription.
- iPhone and iPad with iOS or iPadOS 17 or later
- Apple silicon Mac with macOS 14 or later
- Apple Vision with visionOS 1 or later
- Free analyses with an optional monthly Chaal Pro subscription
Chaal questions.
What chess positions can Chaal import?
Chaal accepts photos, pasted images, images from Photos, boards shared from other apps, FEN, PGN, and board image links. Recognition is designed for screenshots and printed chess diagrams.
Does Chaal upload my chess screenshot?
No. Chaal reads the screenshot on your device. It sends the confirmed chess position, not the image, when remote analysis is requested.
What happens if Chaal reads a square incorrectly?
Chaal highlights the squares it is unsure about and lets you correct them before analysis instead of asking you to rebuild or review the entire board.
What does a Chaal analysis include?
Each result includes the best move, alternatives, evaluations, winning chances, and an explanation. You can share the analysis, and saved analyses can also show opening names when available.
What does Chaal Pro include?
Chaal Pro is a monthly subscription with unlimited analyses, Deep analysis, and Continue the Line. The free version includes limited analyses and line continuations.
Can I use Chaal during a live or rated game?
No. Chaal is built for study and post-game review. Do not use engine assistance during live or rated chess games.
What accessibility features does Chaal support?
Chaal supports VoiceOver, Larger Text, a dark interface, sufficient contrast, Reduced Motion, and controls that do not rely on color alone.