| What it does | Free browser-based financial calculators for planning, savings, loans and investing
| Free marketplace fee calculators for Etsy, eBay and Amazon FBA
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| Stage | Not given
| Startup
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| Founded | Not given
| 2025
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| Based in | Not given
| Not given
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| Pricing model | Free
| Free
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| Pricing | Not given
| Not given
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| Key features | - 30 financial calculators covering interest, savings, loans, debt and investing
- Runs entirely in browser with no data sent to servers
- No sign-up or tracking required
- Shows formulas and assumptions for every calculation
- Custom interest rates, returns, and inflation rates
- Multiple currency formats supported
- Real-time result updates as values change
| - Etsy fee calculator with itemized fees and net payout
- eBay seller profit calculator with Final Value Fee calculation
- Amazon FBA profit calculator including fuel and logistics surcharge
- Poshmark fee calculator with $2.95 vs 20% comparison
- Mercari fee calculator with 10% flat fee calculation
- Depop fee calculator showing 0% seller fees
- Vinted fee calculator with buyer protection fee analysis
- Transparent formulas and variable explanations
- Rates verified from official seller fee schedules
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| What makes it different | - Private by design - all calculations stay on your device
- No sign-up required to use any calculator
- Instant calculations as you adjust your inputs
| - Every fee itemized with true net payout and margin shown
- All calculations run client-side in browser with instant and private results
- Rates verified against official platform fee schedules
- No sign-up, no data collection, no paywalls
- Industry-standard formulas with transparent calculations
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| Community votes | 0 | 0 |
| DR (Domain Rating by Ahrefs) | 34 ● no change since last check | Not checked yet ● no change since last check |
| Trust Flow (Majestic) | 11 | 0 |
| Citation Flow (Majestic) | 24 | 0 |
| Referring domains (Majestic) | 123 | 0 |