DarkSquares vs Purrminal

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 Purrminal
Detail	DarkSquares	Purrminal
What it does	Progressive blindfold chess training from square recognition to full games	Desktop pets on your Windows taskbar that your work feeds, cares for and unlocks
Stage	Not given	Startup
Founded	Not given	Not given
Based in	FR	Not given
Pricing model	Freemium	Freemium
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.	Free: all 16 pets earned by playing, focus timer, daily quests, pet care, Friends groups, Claude Code/OpenCode/Pi pets. Premium: $3.99/month or $29.99/year (save 37% annually). Premium adds 50% more coins, one extra daily quest, reply to coding agent from pet, custom photo pet, and start Friends gro
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	16 collectible pets to unlock by earning coins Pomodoro-style focus timer with customizable rounds Pet care system: feeding, water, play, and baths Claude Code, OpenCode and Pi agent integration Daily quests and focus streaks Friends groups with weekly leaderboards Local save: no tracking or cloud uploads Premium subscription with 50% more coins
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	Work earns coins that feed and unlock pets while you focus Integrates with AI coding agents to show what they are doing All pets unlockable for free, no loot boxes or pay-to-win Data stays local on your PC with no tracking
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)	26 +1 (up) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	23	0
Citation Flow (Majestic)	31	12
Referring domains (Majestic)	45	1

5 details filled in for both companies.

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