Explain My Chess vs Spider Solitaire

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

Explain My Chess compared with Spider Solitaire
Detail	Explain My Chess	Spider Solitaire
What it does	Free chess game review that tells you why	Free online card game with no download or account required
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Free
Pricing	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.	Not given
Key features	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	1, 2 and 4 suit difficulty levels Touch and mouse controls Keyboard shortcuts
What makes it different	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	No download or account required to play Works on any device with a modern web browser Game progress saved automatically in browser Unlimited undo to explore strategies risk-free Multiple difficulty levels for all skill levels
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)	2 +2 (up) since last check	14 +13 (up) since last check
Trust Flow (Majestic)	0	0
Citation Flow (Majestic)	0	10
Referring domains (Majestic)	0	3

4 details filled in for both companies.

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