| What it does | Free options calculators and trade analyzer that shows its assumptions
| Free time card calculator for tracking work hours, overtime and pay
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
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| Pricing model | Free
| Free
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| Pricing | Not given
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| Key features | - Trade analyzer for single and multi-leg positions
- 58 strategy templates
- Black-Scholes-Merton Greeks calculator
- Scenario matrix across price and time
- Volatility labeled by source
- MarketData.app integration for option chains
- Browser-based position storage
- Shareable position links
- 20+ focused calculators
- Plain-English learning library
| - Calculate weekly or biweekly hours from clock in and clock out times
- Subtract unpaid breaks and meal times automatically
- Handle overnight shifts that end after midnight
- Calculate overtime pay at customizable rates and thresholds
- Mark days as paid leave or unpaid leave
- Display results in decimal hours for payroll systems
- Save time cards to device for later access
- Print, download as PDF or export to CSV
- Support for multiple country overtime rules
- All data stored locally in browser with no server upload
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| What makes it different | - Shows which numbers are exact arithmetic, which are estimates, and which come from user input
- No account required and positions stay in browser
- Never hides assumptions or pricing
- Server never sees user data or tokens
- Exact expiration payoff calculations
| - Works on mobile phones without installation
- All calculations run locally in your browser, nothing sent to servers
- Hand-checked calculations against official government rules and worked examples
- Built specifically around time card format rather than embedded in time-tracking software
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| Community votes | 0 | 0 |
| DR (Domain Rating by Ahrefs) | 7 ● no change since last check | Not checked yet ● no change since last check |
| Trust Flow (Majestic) | 4 | 0 |
| Citation Flow (Majestic) | 20 | 0 |
| Referring domains (Majestic) | 9 | 0 |