ScanChess vs ReDiagram

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

ScanChess compared with ReDiagram
Detail	ScanChess	ReDiagram
What it does	Chess OCR for board images and handwritten scoresheets	Fix any diagram without redrawing it
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Free
Pricing	Free: 10 credits on sign-up, 23 free tools, one AI explanation per day, daily practice. Pro: $4.99/month or $29.99/year, 100 credits every 30 days. Pro+: $19.99/month or $119.99/year, 500 credits every 30 days.	Not given
Key features	Chess rule validation for every move Stockfish analysis with accuracy metrics AI coach game explanations Daily practice from missed tactics Games library with photo storage Club management with player rosters	Upload images and reference patches to fix Mark specific regions to replace and elements to use Automatic style, lighting, and edge alignment Support for multiple image types as patches Preserve surrounding image context and physics
What makes it different	Rule-checked moves flagged for verification Published accuracy test with all results shown Editable positions with confidence scores AI coach explains turning points in games	Keep 90% of AI-generated content while fixing only what needs to be changed Leave everything else untouched and preserve overall layout Serves creators who need specific fixes, not full image regeneration Automatic physics response in surrounding objects
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)	7 −2 (down) since last check	16 no change since last check
Trust Flow (Majestic)	13	1
Citation Flow (Majestic)	26	18
Referring domains (Majestic)	43	6

4 details filled in for both companies.

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