| What it does | Compare fees across 8 marketplaces to see what you'll actually keep when you sell
| Free online calculators and unit converters for finance, health, and everyday calculations
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| Stage | Not given
| Established
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| Founded | Not given
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| Based in | US
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| Pricing model | Free
| Free
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| Pricing | Not given
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| Key features | - Compare fees across 8 marketplaces at once
- Includes shipping costs and sales tax in calculations
- US state-by-state sales tax rates for all 50 states
- Fee rates checked against official platform pages in October 2026
- Shows what you actually keep after every fee
- Works on mobile while you list items
- Individual platform fee calculators
- Platform comparison tools
| - BMI and health calculators
- EMI and loan payment calculators
- Compound interest and investment projections
- US mortgage calculator with amortization tables
- TDEE and calorie calculators
- Currency converters with live exchange rates
- Embeddable calculator widgets for publishers
- Browser-based calculations for privacy
- Transparent formulas and source documentation
- Country-specific tax and payroll tools
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| What makes it different | - Accounts for how each platform charges fees on shipping and sales tax differently
- Shows exact amounts you keep, not just percentages
- Fees verified against platforms' official documentation
| - Instant private results stored in browser only
- Transparent formulas and assumptions visible for every calculation
- Over 997 free tools with no account required
- Source-backed reference data and country-specific tools
- Embeddable widgets for educators and publishers
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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 | 19 |
| Referring domains (Majestic) | 0 | 5 |