| What it does | Free calculators and printable tools for home, garden and everyday money questions
| Free online reaction time test that measures your reflex speed in milliseconds
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
| US
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| Pricing model | Free
| Free
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| Pricing | Not given
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| Key features | - Roof pitch calculator with diagram
- Roofing calculator with eaves and waste estimation
- Paint calculator for walls and cans
- Paver calculator for patios and paths
- Compound interest calculator
- Raised bed soil calculator
- Mulch calculator for multiple areas
- Gravel calculator for paths and patios
- Printable Wi-Fi QR sign generator
| - Reaction time measured in milliseconds
- Sessions of 5, 10 or 20 rounds
- Best and average score tracking
- Percentile comparison with online-test benchmarks
- Shareable score card and friend challenge link
- Light and dark mode
- Works on mobile, tablet and desktop
- No registration or download required
- Random delay prevents anticipation
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| What makes it different | - No account or sign-up required
- Visible formulas and worked examples
- Browser-based calculations with no data sent to servers
- Tested formulas and edge cases before publishing
- Clear explanations of estimate limits and assumptions
| - No sign-up, download, or account required
- Does not collect or store personal data
- Sub-millisecond timer precision using browser performance API
- Benchmarks against pro gamers, trained athletes, and average adults
- Fast and clean interface without ads
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| Community votes | 0 | 0 |
| DR (Domain Rating by Ahrefs) | Not checked yet ● no change since last check | Not checked yet ● no change since last check |
| Trust Flow (Majestic) | 0 | 0 |
| Citation Flow (Majestic) | 0 | 12 |
| Referring domains (Majestic) | 0 | 3 |