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Sponsor CRM for solo creators

KeelStack vs Spreadsheets & Airtable

A hand-built spreadsheet or Airtable base that tracks sponsor deals. You are the maintainer. Airtable automations cap at ~100 runs/mo on lower tiers; renewal reminders break first. Works until you have 5 sponsors, then collapses into a tangled web of tabs. No portal, no sponsor-side upload, no audit trail.

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

Spreadsheets & Airtable
DIY sponsor tracking

A hand-built spreadsheet or Airtable base that tracks sponsor deals. You are the maintainer. Airtable automations cap at ~100 runs/mo on lower tiers; renewal reminders break first.

Starting price: Free (your time is the cost)

Limitation: Works until you have 5 sponsors, then collapses into a tangled web of tabs. No portal, no sponsor-side upload, no audit trail.

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.

FeatureKeelStackSpreadsheets & Airtable
Pricing modelFlat $39 / $59 per monthFree (your time is the cost)
Sponsor pipeline Kanban5-stage drag-and-dropYou build it
Magic-link sponsor portalYes — no sponsor account, 24h expiryNo portal
30 / 14 / 7-day renewal remindersAutomatic, from notify.keelstack.meManual calendar entries
Branded performance reportsOne-page branded, print-readyPasted email
ESP integrationsPlatform-agnostic (any ESP)Manual copy-paste
Percentage of revenue taken0%, ever0%
Built for solo creators (3–15 deals)Yes — ICP is solo creatorsWorks for 1–4, then collapses
GDPR export & deleteOne-click, built inNo
Append-only audit trailEvery action loggedNo

A spreadsheet tracks data. KeelStack runs your sponsor operations — pipeline, portal, reminders, reports — so you can spend time on content instead of admin.

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

Why solo creators switch from Spreadsheets & Airtable.

Three things KeelStack does that Spreadsheets & Airtable does not — or charges extra for.

No percentage of revenue

A spreadsheet is free in dollars and expensive in hours — every deal means manual chasing, manual reminders, and manual reports. KeelStack costs $39/mo and does that work for you.

The magic-link portal

A spreadsheet has no portal. You collect assets over email, lose them in threads, and rebuild them every campaign. KeelStack automates this entirely.

Renewal reminders that fire

A spreadsheet doesn't email you. The renewal lives in the contractEnd column until two weeks after it expired. KeelStack fires three reminders automatically.

Migrate from Spreadsheets & Airtable 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.