ChimpTest vs Crux

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

ChimpTest compared with Crux
Detail	ChimpTest	Crux
What it does	A free memory game inspired by Ayumu the chimpanzee at Kyoto University	A daily games hub with no ads
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	SG
Pricing model	Free	Freemium
Pricing	Not given	Not given
Key features	Progressive levels that add numbered squares Flash window shrinks as difficulty increases Three-strike game over system Local browser storage of scores Challenge links with shared level difficulty Customizable flash speed via URL parameter	Daily puzzle refresh at midnight UTC Friends and leaderboards Sign in with Apple for cross-device progress Restricted version for players under 13 Local storage of streaks and counts
What makes it different	Based on genuine peer-reviewed research from Kyoto University's 2007 Ayumu experiment No account, no download, no personal data collection Includes detailed educational articles about the original experiment and memory science	Variety of game types: word, logic, number, trivia and arcade games No tracking or login required - all progress stored locally New set of games every day Child-safe with restricted features for players under 13
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)	6 no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	6	0
Citation Flow (Majestic)	20	25
Referring domains (Majestic)	3	32

4 details filled in for both companies.