DarkSquares vs Wordspool

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

DarkSquares compared with Wordspool
Detail	DarkSquares	Wordspool
What it does	Progressive blindfold chess training from square recognition to full games	Thread the Meaning
Stage	Not given	Not given
Founded	Not given	Not given
Based in	FR	Not given
Pricing model	Freemium	Free
Pricing	Free: €0 forever with unlimited exercises, games vs AI, and access to levels 1-3. Pro Lifetime: €39 one-time payment for all 7 levels, all 8 AI difficulties, famous games library, endgame training, and intermediate tactics.	Not given
Key features	7 progressive training levels from square colors to full blindfold games Unlimited exercises and games against AI Voice-controlled play in 6 languages Progress tracking and achievement system Cross-device synchronization Famous grandmaster games to replay blindfolded Endgame training module Multiple board visibility modes Tactical puzzles and exercises	New puzzle every 24 hours Par scoring system Sharable puzzle codes Optional weekly leaderboard Browser-based, no download Machine-learned word relationships No letters, spelling or grid
What makes it different	Systematic progression from fundamentals to blindfold mastery, not just a side effect of puzzle training Free tier is genuinely free with no dark patterns or engagement manipulation One-time €39 lifetime payment with no subscription required Built and maintained by a single indie developer actively improving the product Available across web, iOS, and Android with unified account	Walks the distance rather than guesses it Measures meaning not spelling No account or signup required Open source vocabulary datasets
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)	25 no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	23	4
Citation Flow (Majestic)	31	13
Referring domains (Majestic)	45	4

4 details filled in for both companies.

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