June 2026
v4.0 — Complete rebuild
- Complete site redesign with new professional design system
- Fixed logo display on all backgrounds (dark footer + light header)
- All 9 platform pages rebuilt from scratch with correct links
- Blog articles 2–5 added (Stripe vs PayPal, eBay, Etsy, Reduce Fees)
- Mobile navigation fully functional on all devices
- Email updated to support@calcfees.net across all pages
- Verified all fee rates against official platform sources
May 2026
v3.1 — Fee updates
- Verified all PayPal rates against updated help center
- Updated Stripe Link rate to 2.5% + $0.10
- Added Etsy Offsite Ads 12% tier (sellers over $10k/yr)
- Added Shopify Plus plan pricing (0.15%)
April 2026
v3.0 — Major redesign
- All calculators updated to show results live as you type
- Added reverse calculation (charge buyer) to PayPal and Stripe
- Added Amazon FBA profit margin calculator with COGS field
- Improved mobile layout across all pages
January 2026
v2.0 — Launch
- Initial launch with PayPal, Stripe, eBay, Etsy, Amazon, Shopify calculators
- All rates verified against official fee schedules
- Monthly verification process established