AppSumo
Software marketplace with deals commonly used by founders and creators.
Visit tool →Approximate sponsorship fees from reachable opens × CPM with monthly send cadence baked in.
Results are simplified estimates for educational purposes only and should not be treated as financial, accounting, legal, or tax advice. See our disclaimer for details.
Use when quoting digital newsletter inventory priced like media. Reality may be flat fees or performance blends—treat math as conversational anchor.
Subscribers × open rate × (CPM ÷ 1000) per send × sends per month.
Using the default example values from the JSON seed for this tool:
Result: $1,881.60 (Estimated sponsorship revenue)
Models sponsorship fees using opens (subscribers × open rate) × CPM/1000 × paid sends per month.
Real deals may be flat fees or performance blends—use as a directional anchor.
Improve open assumptions with recent campaign stats.
Sponsors weigh audience fit heavier than sheer list size. A tight niche can outperform a giant cold file.
Compare sponsorship output with plain newsletter revenue assumptions for the same list.
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Open calculator →Disclosure: Some links on this page may be affiliate links. If you sign up or make a purchase through these links, FounderCalc may earn a commission at no extra cost to you. We only recommend tools that are relevant to the calculator topic.