| What it does | Free UK money calculators for tax, mortgages, loans, savings and everyday maths
| Free Amazon FBA calculators and seller tools with verified 2026 fee rates
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| Stage | Not given
| Startup
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| Founded | Not given
| 2026
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| Based in | GB
| CN
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| Pricing model | Free
| Freemium
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| Pricing | Not given
| Free core tools with no signup. Pro plan: $29.99/month or $299/year (save 17%). One-time fee audit service: $299 for up to 50 SKUs, $4 per extra SKU.
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| Key features | - Take-home pay calculator for income tax and National Insurance
- Salary to hourly wage converter
- Student loan repayment calculator for Plans 1, 2, 4, 5 and postgraduate
- Mortgage repayment calculator
- Stamp Duty Land Tax calculator for England and Northern Ireland
- Compound interest and savings goal projections
- Debt payoff and credit card repayment planner
- VAT calculator
- Monthly budget builder
- Currency converter
| - FBA Profit Calculator with all hidden fees
- PPC Analyzer for ACOS and ROAS calculation
- Fee Simulator comparing fulfillment methods
- Listing Grader with optimization tips
- Review Analyzer for competitive insights
- Inventory Optimizer with restock alerts
- Cost Tracker for expense management
- Real-time exchange rate conversion updated every 5 minutes
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| What makes it different | - No signup required to use any calculator
- All calculators use official UK tax rates with documented update dates
- Consistent structure with worked examples and FAQ for every tool
- Designed for search accuracy and transparency
- Clear disclaimers and not personalised financial advice
| - 50+ free tools with no signup, login or credit card required
- Fee rates verified monthly with open-source data published under CC BY 4.0
- Built by an 8-year Amazon FBA seller addressing real seller pain points
- Supports multiple marketplaces: Amazon US/EU/UK/JP/CA/AU, Temu, TikTok Shop, and Etsy
- Transparent formulas using industry-standard calculations verifiable by users
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| Community votes | 0 | 0 |
| DR (Domain Rating by Ahrefs) | 4 ▲ +2 (up) since last check | 23 ● no change since last check |
| Trust Flow (Majestic) | 0 | 0 |
| Citation Flow (Majestic) | 0 | 16 |
| Referring domains (Majestic) | 0 | 10 |