| What it does | Free options calculators and trade analyzer that shows its assumptions
| Free calculators for marketers, affiliates and store owners
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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
| - ROAS calculator with break-even analysis
- CPA and CPM calculator for ad costs
- LTV and CAC calculators for e-commerce
- Affiliate earnings and EPC calculator
- UTM link builder for GA4 tracking
- A/B test significance and sample size calculator
- Shopify profit calculator
- YouTube earnings estimator
- Affiliate Link Checker Chrome extension
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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
| - Runs entirely in browser with no signup required
- Private calculations that never leave your device
- Every tool explains formulas, benchmarks and common mistakes
- Completely free with no premium plans
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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 | 1 |
| Citation Flow (Majestic) | 20 | 17 |
| Referring domains (Majestic) | 9 | 2 |