ChessAtlas
Build an opening repertoire that survives spaced repetition.
Free · from $6.99/moWeb
About ChessAtlas
ChessAtlas is an opening-trainer purpose-built around the FSRS spaced-repetition algorithm. Members create or fork courses (chapters and variations), import their own games from Lichess or Chess.com, and have ChessAtlas surface the exact moves where their games deviated from prep - so review schedules target the lines that actually break in real play. Built by ChessDir's editor; disclosed here for transparency.
Pros
- Free tier is generous - 200 variations and 2 linked accounts cover most club players' needs.
- FSRS scheduling is more efficient than the SM-2 spaced repetition used by older trainers.
- Deviation detection: imports your real games and pinpoints where you left book.
- Course library lets you fork existing repertoires instead of starting from scratch.
Cons
- Web-only - no native iOS or Android app yet.
- Scope is opening repertoire training; not a play platform, no puzzles, no engine analysis.
- Younger product than Chessable or Chess Position Trainer; smaller course catalog.
- Editorial conflict of interest: built by ChessDir's editor (disclosed in description).
Features
Opening trainerOpening repertoireSpaced repetitionStudy & shareCloud sync
Pricing
- Premium Monthly$9.99 /month
- Premium Annual$6.99 /month
Free tier covers 200 variations and 2 linked Lichess/Chess.com accounts, with full FSRS training, deviation detection, and the public course library. Annual billing works out to $83.88/year ($6.99/mo).
Best for
Audience: Intermediate (1200 – 1800), Advanced (1800 – 2200)
ELO range: 1200 – 2400
Languages: EN, FR, ES, DE, PT, HI