Ninefold vs ChimpTest
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Ninefold compared with ChimpTest
| Detail | 
Ninefold | 
ChimpTest |
|---|
| What it does | Nine letters. One hidden word.
| A free memory game inspired by Ayumu the chimpanzee at Kyoto University
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| Stage | Startup
| Not given
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| Founded | 2026
| Not given
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| Based in | US
| Not given
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| Pricing model | Free
| Free
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| Pricing | Not given
| Not given
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| Key features | - 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
| - 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
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| What makes it different | - 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
| - 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
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| Free plan | Not given
| Not given
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| Open source | Not given
| Not given
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| Platforms | Not given
| Not given
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| Public API | Not given
| Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 1 ▲ +1 (up) since last check | 6 ● no change since last check |
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| Trust Flow (Majestic) | 0 | 6 |
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| Citation Flow (Majestic) | 0 | 20 |
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| Referring domains (Majestic) | 0 | 3 |
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4 details filled in for both companies.
More alternatives to Ninefold More alternatives to ChimpTest