ReplayChess vs ChimpTest

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

ReplayChess compared with ChimpTest
Detail	ReplayChess	ChimpTest
What it does	Master chess through legendary games by replaying iconic positions and testing your calculation against the engine	A free memory game inspired by Ayumu the chimpanzee at Kyoto University
Stage	Startup	Not given
Founded	2026	Not given
Based in	Not given	Not given
Pricing model	Freemium	Free
Pricing	Player plan: $4.99 per month or $50 per year. Yearly billing saves 16% and works out to $4.17 a month. Includes unlimited positions, record and export, 1080p quality, and basic AI analysis. 30-day money-back guarantee.	Not given
Key features	Replay iconic chess positions from legendary games Test calculation against AI engine Challenge friends with shareable links Compare continuation against best engine line Game recording and export Basic AI analysis 1080p quality output Play against engine from any position Curated library of historic positions Free position challenges without account	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
What makes it different	Play from the exact moment of legendary games, not just study them Designed for pausing chess videos to calculate positions Step into the shoes of chess legends at critical game moments Compare your moves directly against engine analysis Built by an indie hacker solving a personal chess problem	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
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 +1 (up) since last check	6 no change since last check
Trust Flow (Majestic)	20	6
Citation Flow (Majestic)	24	20
Referring domains (Majestic)	102	3

4 details filled in for both companies.

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