Sponsonizer is a booking page for newsletter sponsorships: solo creators publish their ad inventory, sponsors pick a date and pay upfront via Stripe Connect, and payouts land straight in the creator's bank. No spreadsheets, no DMs, no 30% marketplace cut.

Public booking calendar with per-slot pricing and bulk discounts.
Stripe Connect payouts direct to your bank, no platform-held funds.
One-click booking approvals with automatic refunds on reject.

Free plan takes 7% per booking; Pro at $99/year drops the platform fee to 0%.