Chess Openings - ChessAtlas
Train openings, fix mistakes
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Connect Lichess or Chess.com and ChessAtlas shows exactly where you left your opening prep, then drills it back with spaced repetition.
Build an opening repertoire you actually remember, and stop losing games to lines you thought you knew.
ChessAtlas turns your openings into a simple training routine: learn each line, review it on a spaced-repetition schedule, and connect your real games to catch the exact moves where you went off-book.
HOW IT WORKS
- Build your own repertoire, paste a PGN, or fork a ready-made opening from the library.
- Learn each line move by move, with plain-language notes on the ideas behind the moves.
- Link your Lichess or Chess.com account. ChessAtlas checks every game against your prep and flags the first move where you deviated.
- Drill those mistakes until they stick, with spaced repetition that brings each line back right before you would forget it.
WHAT YOU GET
- Your real games, checked against your repertoire, with the first deviation pinpointed.
- Spaced-repetition review so lines stay in long-term memory.
- Full game analysis with move-by-move accuracy and the quality of every move.
- A library of curated openings you can fork and make your own.
- Read mode that explains the idea behind each move, not just the notation.
- Streaks, levels and a leaderboard to keep the habit going.
- Multiple board themes.
WHO IT IS FOR
Club and improving players who want a repertoire they can trust under pressure, whether you are building your first opening or sharpening lines you already play.
Free to start. Upgrade to Premium for unlimited training.
Questions or feedback: https://chessatlas.net
Terms of Use: https://chessatlas.net/terms
Privacy Policy: https://chessatlas.net/privacy
A faster start, and a repertoire that begins with the openings you already play.
NEW
- Import a Lichess study straight into your repertoire
- Build a starter repertoire from your own games
- Train offline, so your lines travel with you (Premium)
- Puzzles built from the mistakes in your real games
IMPROVED
- Deviations now show right on the board, yours and your opponent's
- Your real games feed the review schedule and your mastery
- Review shows the line so far, with searchable lines and an optional engine
- Fairer game accuracy: a single blunder no longer reads 0%
- Mark a chapter as not learned, or import lines you already know
Plus bug fixes and performance work throughout.
Thanks for training with ChessAtlas!
The developer, Antoine Tamano, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- AnKT Services
- Size
- 51.7 MB
- Category
- Board
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - iPad
Requires iPadOS 16.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Premium Annual $83.99
- Premium Monthly $9.99
- Copyright
- © 2026 AnKT Services