| What it does | Compare fees across 8 marketplaces to see what you'll actually keep when you sell
| Free online calculators for finance, health, salary, loans, and everyday decisions
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| Stage | Not given
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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
| - Amortization calculator with extra payment options
- Salary converter across 8 pay frequencies
- Mortgage calculator with taxes, insurance, PMI and HOA
- Compound interest calculator with monthly contributions
- Metric and imperial unit toggles
- Offline support via progressive web app installation
- Step-by-step guides explaining calculator formulas
- Mobile responsive design supporting 320px phones
- Nine language translations with right-to-left support
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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
| - Every calculator shows its formula and worked example so results can be verified
- All calculations run locally in browser with no data collection or account required
- Formulas traced to primary sources and tested against boundary cases before publication
- Independent editorial team accountable for accuracy with no guest posts
- Corrections treated as normal work with public revision dates
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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 | 1 |
| Citation Flow (Majestic) | 0 | 15 |
| Referring domains (Majestic) | 0 | 3 |