Chessis: Chess Analysis

Chess Improvement Apps

Contains adsIn-app purchases

About this game

Chessis is a powerful Chess Analysis app that helps you improve your game!

✨ Recent Updates:
📷 Chess Image Scanner — scan 2D chess board images for instant analysis
⚔️ Engine vs Engine — watch engines battle each other
🧠 Smart Analysis — deeper insights, enable in analysis settings
🐟 Stockfish 18 — the latest and strongest engine
♟️ App Shortcuts — long-press the app icon for quick access
🎯 Lichess Games — browse and analyze your Lichess games directly
📝 Annotated PGN Export — select and download annotated games
🌍 13 languages supported

✔️ Analyze your games and get detailed game reports
✔️ Analyze chess positions with Stockfish engine
✔️ Detect blunders, mistakes, missed wins, and best moves
✔️ Play chess against the computer at your level
✔️ Set up board positions (Board Editor) and analyze them
✔️ Open PGN files (PGN Viewer)
✔️ Get blunder alerts and learn why it was a blunder
✔️ Add multiple engine lines
✔️ Play engine lines
✔️ Customize board colors and pieces
✔️ Analyze your chess games from Chess.com or Lichess
✔️ Export annotated PGN
✔️ Adjust game report depth
✔️ Chess960 (Fischer Random Chess)
✔️ Games database with FEN search
✔️ Add OEX engines
✔️ Change engine settings like hash value and threads
✔️ List of all chess openings to explore
✔️ Play chess on the clock or set engine think time
✔️ Average centipawn loss on game reports
✔️ Analyze games by time or depth
✔️ Show threats
✔️ Accuracy percentage
✔️ Draw arrows on the board

Chessis is one of the best chess analysis apps available. It helps you improve your chess by analyzing your games and providing detailed game reports with blunders, missed wins, best moves, and more. It not only shows you where you made a mistake but also explains why it was a mistake.

To support the app, we offer a Pro version with extra benefits. Most features are free, but Pro gives you:
✔️ Play/Show "Why Blunder" line
✔️ Play engine lines
✔️ Enable NNUE
✔️ Add unlimited engine lines
✔️ Adjust game report depth
✔️ Adjust game report time
✔️ Deep analysis
✔️ Show each move's strength while playing
✔️ Get mistake alerts while playing
✔️ No ads
✔️ Analyze unlimited games forever!
✔️ Key Elements

Note: Deep analysis provides much more accurate and consistent results compared to quick analysis.

Let's analyze chess with Chessis!

We're always working on improvements and new features. If you have any suggestions or need help, please email us at [e-mail]. Thank you!

Ratings and reviews

Best free chess game ever. Gives you an analysis after each game. You can step through each move of the finished game and it shows where you should have moved and indicates if each move is a book move, or the best, good, inaccurate, mistake, or a blunder. it also has example openings you can study. Also, no ads.

Very useful. Dinged one star, because it would be nicer if we could import PGNs, and if the team added each new engine version via app updates for pro users when they come out. Rather than needing is to download it. More convenient, and doesn't require as much CPU power to run an outside engine. Running SF17 heats up my phone significantly in this way. Thanks for the app, folks!

The perfect alternative to desktop analysis tools. There are several apps on the market for chess games analysis. However, none of them is as easy to use as Chessis. The UI is very simple, and yet very effective. You can choose to analyze your games based on depth and time. It offers graphs and training tools. I still think that a desktop tool is preferred, but if you need something on the go, if you just played a game on the train and you want to check out your performance, this app is a MUST!

What’s new

Bug fixes and stability improvements.

Recent updates include:
• Scan chess board images (2D) directly from the Board Editor
• Navigation buttons in Board Editor to browse previous boards and undo changes
• Preserve tags when exporting games
• Improved threefold repetition and 50-move rule detection
• Battery saver mode in Settings