I've run a newsletter for 6 years. Every new sponsor meant the same thing: dig up my stats, send my ad options and pricing, then trade a dozen emails more. Costed hours every month. The tools that fix this weren't built for me. Sponsy is $79/mo. Paved takes 30%. If you sell a few slots a month, neither works. Sponsonizer is free. You pay 7% when a booking closes, or nothing for $99/yr. Advertisers pick a slot, pick dates from a calendar, and pay. No account. You approve or reject in one click.
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Maker
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Hey Product Hunt 👋
I've run Tailwind Weekly, a newsletter for developers, for 6 years. Sponsorships paid for it. Selling them was miserable.
Every new sponsor: dig up my subscriber count and open rate, write up my ad options and pricing, send it all over. Then a dozen emails about which dates are open, whether that slot's taken, how to pay. Repeat for every single sponsor.
I looked for a tool. Sponsy is $79/mo, which is a lot when you sell a few slots a month. Paved takes 30% and routes your deals through their marketplace. Passionfroot moved on to serving brands. So most creators I know just live in spreadsheets and email threads.
So I built Sponsonizer: you set up your ad slots and pricing once, build a booking page, share the link.
Advertisers see everything, pick their dates from a calendar showing real availability, and pay. No account. You approve or reject with one click, and rejections refund automatically.
On pricing: it's free with a 7% cut per booking. Pro is $99/yr for 0% fees plus custom fonts, colors, and no Sponsonizer branding.
I run it on Tailwind Weekly, so my booking page is the live demo: https://sponsonizer.com/tailwind...
If you run a newsletter and sell sponsorships, I'd love to know what's missing. And if you've felt this exact pain, tell me how you're handling it now. Genuinely curious whether spreadsheets are still the default.
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honestly this looks great for solo newsletter folks, the no-account flow for advertisers is clever. one thing though, it would be really helpful to have a built-in analytics dashboard showing which slots perform best over time, like open rates or click-throughs by placement, so you can actually price your tiers based on real data instead of guessing.
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The calendar-based booking flow for advertisers is genuinely smart, skips all the back-and-forth that usually kills small newsletter deals. Love that you kept it account-free for buyers too, that friction was always the worst part.
honestly this looks great for solo newsletter folks, the no-account flow for advertisers is clever. one thing though, it would be really helpful to have a built-in analytics dashboard showing which slots perform best over time, like open rates or click-throughs by placement, so you can actually price your tiers based on real data instead of guessing.
The calendar-based booking flow for advertisers is genuinely smart, skips all the back-and-forth that usually kills small newsletter deals. Love that you kept it account-free for buyers too, that friction was always the worst part.