| What it does | Free online reaction time test that measures your reflex speed in milliseconds
| Free UK money calculators for tax, mortgages, loans, savings and everyday maths
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| Stage | Not given
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| Founded | Not given
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| Based in | US
| GB
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| Pricing model | Free
| Free
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| Pricing | Not given
| Not given
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| Key features | - 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
| - Take-home pay calculator for income tax and National Insurance
- Salary to hourly wage converter
- Student loan repayment calculator for Plans 1, 2, 4, 5 and postgraduate
- Mortgage repayment calculator
- Stamp Duty Land Tax calculator for England and Northern Ireland
- Compound interest and savings goal projections
- Debt payoff and credit card repayment planner
- VAT calculator
- Monthly budget builder
- Currency converter
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| What makes it different | - 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
| - No signup required to use any calculator
- All calculators use official UK tax rates with documented update dates
- Consistent structure with worked examples and FAQ for every tool
- Designed for search accuracy and transparency
- Clear disclaimers and not personalised financial advice
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | Not checked yet ● no change since last check | 2 ▲ +2 (up) since last check |
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| Trust Flow (Majestic) | 0 | 0 |
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| Citation Flow (Majestic) | 12 | 0 |
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| Referring domains (Majestic) | 3 | 0 |
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VoltReflex
Handy Money Tools