ChessAtlas vs Explain My Chess

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

ChessAtlas compared with Explain My Chess
Detail	ChessAtlas	Explain My Chess
What it does	Free chess opening trainer with spaced repetition	Free chess game review that tells you why
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Freemium
Pricing	Not given	Free: $0. Pro: $9.99/month, $69/year, or $149 lifetime (early-bird for first 100 buyers, then $249). Pro covers up to 100 Coach-explained games and 50 scoresheet photos per month.
Key features	Spaced repetition with FSRS algorithm Repertoire builder Opening trainer with instant feedback Game import from Lichess and Chess.com Deviation detection Course library with opening courses iOS and Android mobile apps Multiple language support	Accuracy scoring based on winning chances Move labels: inaccuracy, mistake, blunder No account required for free review Import games from Lichess or Chess.com Coach written explanations in plain language Scoresheet photo to PGN conversion Suspected mistakes checked twice at greater depth
What makes it different	FSRS algorithm schedules reviews 15-30% more efficiently than SM2 Automatic deviation detection from Lichess and Chess.com games Full repertoire builder in free tier with no course purchase required	Honest labeling: mistakes rechecked deeper before labeling No uploads for free review: analysis runs locally in your browser Free review never requires account or has daily limits One-click review for returning users with remembered username
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	10 +1 (up) since last check	2 +2 (up) since last check
Trust Flow (Majestic)	22	0
Citation Flow (Majestic)	24	0
Referring domains (Majestic)	34	0

4 details filled in for both companies.

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