Laying out the streets…STEP 1 OF 3

KeelStack · Office #61,764

Sponsorship management for independent newsletter creators a

In the Email campaigns neighborhood (Marketing and sales). In town since 4 Nov 2026.

Nobody has claimed this office yet. Tablif records every new product and gives it an office; when its owner claims it, the lights go on.

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What Tablif read on KeelStack's site

KeelStack describes itself as: “KeelStack — The sponsor operations layer for solo newsletter & podcast creators”

What it is

Calls itself “sponsor CRM”.

  • Calls itself: sponsor CRM
“…sponsor CRM”

Where it puts itself

Positions itself as an alternative to spreadsheets. Claims “One”. Rules out “We never sell your data”. Publishes a comparison page.

  • Alternative to: spreadsheets
  • Superlative claim: One
  • Says it will not: We never sell your data
“Other tools are built for sponsor agencies or take a cut of your revenue. KeelStack is built for one person running direct deals.”
“KeelStack vs Sponsy, Passionfroot (5–15% commission), SponsorCal, SponsorKit, and spreadsheets — feature by feature”

What it costs

Monthly subscription and yearly plan. Free for a trial period. Trial: “14-day”. Has an enterprise plan. Sales on request. 6 prices listed on its pages, from $33 to $990.

  • Monthly: yes
  • Yearly: yes
  • Commission: no
  • Free plan: free for a trial
  • Price: 6 prices, from $33 to $990
  • Trial: 14-day
  • Enterprise plan: yes
  • Contact sales: yes
“Starter For the solo creator running 3–8 sponsor deals a quarter. $ 33 /mo, billed annually $390 per year · 2 months free”
“Pro For the creator scaling past a dozen deals and ready to prove ROI. $ 49 /mo, billed annually $590 per year · 2 months free”
“Business For creators running 50+ deals a year who need audit exports and API access. $ 83 /mo, billed annually $990 per year · 2 months free”

Who it sells to

Sells to businesses. Built for solo users. Made for creators.

  • Sells to: businesses
  • Company size: solo / indie
  • Made for: creators
“KeelStack is built for one person running direct deals.”
“KeelStack is a sponsor CRM built for solo newsletter and podcast creators running 3–15 direct sponsorship deals.”

How it runs

A web app. Hosted in the cloud. Offers an API.

  • Kind: web
  • Runs where: cloud / hosted
  • API: yes
“Read-only REST API with full documentation”
“All traffic is encrypted in transit over HTTPS, every query is isolated per account”

What it works with

Names Beehiiv, Ghost and 5 more on its pages.

  • Names: Beehiiv · Ghost · Kit · +4
“Platform-agnostic Yes — Substack, Ghost, Kit, Beehiiv, podcast”
“Passionfroot”

What it offers as proof

Live, no waitlist. Compliance: tenant-scoped. Try it without signing up. Publishes docs and a blog.

  • Compliance: tenant-scoped
  • Instant signup: yes
  • Trial asks for: nothing
“Sign in Start free trial”
“No credit card required · 14-day free trial · Cancel anytime”

Sources

Tablif read these pages, last on 4 Nov 2026. Everything above is what the product says about itself; Tablif does not verify every claim.

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