Chess Advisor

Free chess game review · Android & iOS

Turn your games into lessons.

Chess Advisor reviews every move of your games with the Caissa engine, running right on your phone. Find out where the game turned, retry your mistakes, and train the openings and endgames you actually play.

Get it on Google Play App Store: coming soon

No ads, no account, no paywall. Your games stay on your device.

Chess Advisor review screen: a board with the move Qb8+ marked Brilliant, and the move list below.

Everything you need to improve

Import your Chess.com or Lichess games, paste a PGN, record an over-the-board game, or scan a board, and get an honest review in seconds.

Move-by-move review

Every move gets a label: Brilliant, Best, Excellent, Inaccuracy, Mistake or Blunder. You also see the evaluation swing, the best line and the opening you played.

Retry your mistakes

Find the better move yourself before the answer is shown. Mark your own key moments first, then compare them with the engine.

Insights across games

Deep Review analyzes your game history in the background, on your device. It shows accuracy by phase, tactical blind spots, time trouble and tilt.

Train what you play

  • Your real repertoire, drilled with spaced repetition
  • Opening Academy lessons
  • Endgames against perfect tablebase defence
  • Puzzles, including ones built from your own mistakes

Play and prepare

Play the engine at adjustable strength, with an optional clock or blindfolded. Prepare for an opponent from their public games, then rehearse against a bot that plays their openings.

Over the board

Record a game by voice or by tapping, with a tournament clock. Read a scoresheet photo, scan a board from a photo or a screenshot, and export the PGN.

See it in action

Designed for phones and tablets, in a calm dark theme that keeps the board front and centre.

Review screen with a Brilliant move highlighted.
Review every move
Game summary with an evaluation graph, the opening name and accuracy for both players.
Game summary
Deep Review insights: what is holding you back, with estimated Elo gains.
What's holding you back
Opening Academy lesson for the Italian Game with an arrow on the board.
Opening lessons
Rated puzzle screen with hint, solution and skip buttons.
Rated puzzles

A coach in your ear

Narration walks you through a game move by move and explains why each move was good or bad. It works offline. Pick the voice you like.

American English
Bella
Warm and clear.
British English
Emma
Calm and measured.
American English
Michael
Steady and relaxed.
American English
Puck
Upbeat and lively.
British English
George
Deep and unhurried.

Download an optional natural-sounding English voice that runs entirely on your device. Optional AI commentary can explain a game in plain language and answer your follow-up questions.

Your games stay yours

  • No account. We never ask for your name or email address.
  • Games, analysis and progress are stored on your device, with backups to a file you control.
  • The engine runs on your phone, so reviews work offline.
  • AI features are off until you agree. They send only what each feature needs to our server, never your name or account. Daily limits prevent abuse.

Read the privacy policy

Free for everyone

  • Every feature is free. No ads, no paywall.
  • An optional supporter subscription helps keep it going and adds a supporter badge and extra board themes.
  • In English, Spanish, Portuguese (Brazil), German, French, Russian, Hindi and Turkish.
  • Screen-reader support (TalkBack and VoiceOver), including the board.