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Sponsor CRM for solo creators

KeelStack vs Passionfroot

A discovery marketplace where creators list their inventory and sponsors browse. The CRM layer is bolted on; the marketplace is the product. Free core product with transaction-fee pricing: 5% on self-sourced deals, 15% on network-sourced partnerships. Includes Zest AI agent for campaign planning, Stripe-powered payments, and storefront-based creator discovery. Takes 5–15% of every deal — the better you do, the more they take. No native CRM integration (HubSpot/Salesforce), no ESP integrations, and the 15% network fee becomes expensive at scale.

KeelStack
The sponsor operations layer for solo creators

Built for one-person newsletters and podcasts running 3–15 direct sponsorship deals. Flat $39/mo (Starter) or $59/mo (Pro). No percentage of revenue, ever. The magic-link portal is the wedge — sponsors upload their own assets without creating an account.

  • 5-stage Kanban pipeline with drag-and-drop
  • Magic-link portal — sponsors upload assets, no account needed
  • 30/14/7-day renewal reminders via email
  • Branded performance reports, print-ready
  • Revenue dashboard with MRR, renewals, at-risk alerts
  • CSV import, audit trail, GDPR export — all built in

Starting price: $39/mo · 2 months free on annual

Passionfroot
Sponsor marketplace + CRM

A discovery marketplace where creators list their inventory and sponsors browse. The CRM layer is bolted on; the marketplace is the product. Free core product with transaction-fee pricing: 5% on self-sourced deals, 15% on network-sourced partnerships. Includes Zest AI agent for campaign planning, Stripe-powered payments, and storefront-based creator discovery.

Starting price: Free + 5–15% of revenue

Limitation: Takes 5–15% of every deal — the better you do, the more they take. No native CRM integration (HubSpot/Salesforce), no ESP integrations, and the 15% network fee becomes expensive at scale.

Feature-by-feature: where KeelStack wins.

Every row is a thing you will actually use. One column is built for you. The other is built for someone else.

FeatureKeelStackPassionfroot
Pricing modelFlat $39 / $59 per monthFree + 5–15% of revenue
Sponsor pipeline Kanban5-stage drag-and-dropInbox-style listings
Magic-link sponsor portalYes — no sponsor account, 24h expiryMarketplace listing page
30 / 14 / 7-day renewal remindersAutomatic, from notify.keelstack.meMarketplace renewals only
Branded performance reportsOne-page branded, print-readySocial platform metrics only
ESP integrationsPlatform-agnostic (any ESP)No ESP integrations
Percentage of revenue taken0%, ever5% self-sourced, 15% network
Built for solo creators (3–15 deals)Yes — ICP is solo creatorsNo — built for brands finding creators
GDPR export & deleteOne-click, built inNo public GDPR tools
Append-only audit trailEvery action loggedNo audit trail

Passionfroot is a marketplace. KeelStack is an operations layer. If you already have sponsors, you don't need a marketplace — you need a system that doesn't take a cut.

Flat pricing. No revenue cut. Built for one person running direct deals.

Why solo creators switch from Passionfroot.

Three things KeelStack does that Passionfroot does not — or charges extra for.

No percentage of revenue

Passionfroot takes 5–15% of every deal. On a $4k/mo book, that's $2,400+ a year — versus KeelStack's flat $468.

The magic-link portal

Passionfroot has a marketplace listing — not a portal. Sponsors browse, they don't upload. KeelStack is the reverse — sponsors upload, no marketplace.

Renewal reminders that fire

Passionfroot has no renewal reminders. They make money when you bring new deals to the marketplace, not when your existing sponsors renew.

Migrate from Passionfroot in an afternoon.

Start a 14-day free trial, add your sponsors, generate their portal links. If KeelStack doesn't fit, walk away — no credit card, no contract, no clawback.