Checkerso vs Ninefold

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

Checkerso compared with Ninefold
Detail	Checkerso	Ninefold
What it does	Play checkers online free against the computer or a friend in your browser	Nine letters. One hidden word.
Stage	Not given	Startup
Founded	Not given	2026
Based in	US	US
Pricing model	Not given	Free
Pricing	Not given	Not given
Key features	Play against computer with three difficulty levels Play with a friend online via shareable link Two-player mode on same device Undo and hint system Works offline after initial load No downloads or plugins required	New puzzle every day at midnight in local time zone Build words of four or more letters using center letter Each tile can be used once per word Streak tracking by solving the nine-letter word Archive of past puzzles available to play Optional daily email subscription No account or login required Built for single thumb play
What makes it different	No account, download, or payment required to play Works in any modern browser without Flash or extensions Plays offline after page loads using service worker	Same grid for everyone each day without competitive leaderboards No ads, no app needed, plays in any web browser Includes Journal with strategy guides and focus articles
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)	1 no change since last check	2 +1 (up) since last check
Trust Flow (Majestic)	4	0
Citation Flow (Majestic)	16	0
Referring domains (Majestic)	8	0

4 details filled in for both companies.