Analyze chess games, detect mistakes & blunders, and improve your chess!
About Chessis: Chess Analysis
Chessis: Chess Analysis is a board app developed by Chess Improvement Apps.
Download Statistics
Chessis: Chess Analysis has been downloaded 2 million times. In the last 30 days, the app was downloaded 46 thousand times. It is ranked in the top 100 board apps.
User Ratings
Chessis: Chess Analysis is rated 4.79 out of 5 stars. The rating is based on 27 thousand ratings.
App Information
Chessis: Chess Analysis is FREE to download. The APK download size is 5.17 MB. The latest version available is 18.3. The last update was on June 13, 2026.
Technical Requirements
Chessis: Chess Analysis requires Android 5.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play July 2021.
Description
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 chessimprovementapps@gmail.com. Thank you!
Recent changes: 🎉 What's New
🔃 Retry mistakes from games. (Even from multiple games from Games Archive)
♟️ 3D pieces — add your own! Settings → Board Themes → tap ⋮ next to Pieces, then pick a ZIP of 3D pieces (SVG/PNG).
🖼️ Custom backgrounds — Settings → Board Themes → tap ⋮ next to Background.
😀 New avatars.
♿ Screen reader support for blind & low-vision players.
✨ Small improvements & bug fixes from your reports.
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Best Analysis App for Android and Just Got Better! The Rating Function is Wonderful, I used to Wish for a Numerical Rating in Addition to an Accuracy Rating I'm a very strong player with Accuracy from 90-99.7 rating just had a game I analyzed with a 94.1% rating and a 2630 rating not my best accuracy rating but the other player got a 2240 rating I really feel I'm improving using this app. I'm using the Stock fish engine 18 when it was first available, and now it's available for Chassis Pro. 🥰
★★★★☆Alibaba Magtanggol· Apr 30, 2026
The only problem is if I change default engine to OEX engine cannot move the engine vs human, but it works on engine vs engine.
★★★★☆J. Miles· May 8, 2026
When adding variations to be analyzed, there's no need for the pop-up notification stating how many variations are now being analyzed. The number being analyzed is obvious, & the pop-up just covers the variation analysis lines, so I waste time waiting for it to disappear, so I can actually see the variations. Otherwise, the program works well (though sometimes can't scan obvious chessboard screenshots correctly) and the ability to scan screenshots onto the chess board is extremely useful.
★★☆☆☆U Eugen· Apr 18, 2026
It was my favorite chess app. However with latest 1 or 2 new versions the interface got awful because when I analyze a game now I can only see maximum 1 line of engine variants instead of 2 with older version that fit on screen. And additionally now sometimes that annoying "Why mistake" message appears which I cannot disable, that makes engine lines not visible during analysis. Please revert the graphical interface changes, and please make "Why mistake" message optional
★★☆☆☆Vijay Kumar· Jun 6, 2026
Old version good, new version giving wrong accuracy, I am 2000 plays, but it's saying play style 800
★☆☆☆☆Lcd Drmr· May 25, 2026
Since the May 2026 update, the graphics have been improved a lot, but the entire analysis is useless. This is because the quick analysis now needlessly takes about 4 times longer but is limited to the same 14 depth, yet gives crazy high wrong values. Before, we could let analysis run as deep as we wanted by stepping slowly through the moves (total 3 mins), now have to pay, and it has a depth limit of only 18. And it's likely just as inaccurate as the quick one, anyway. A good program is ruined.
★☆☆☆☆Saad Jahangir Manj· Apr 23, 2026
world's most engine and app of all time I used it first it was 0.80 + eval for my opponent, and then I played engine moved, and it then made me losed at end by 12 + eval
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