Subloop

For paid newsletters

The posts that get you subscribers aren't the ones that keep them.

Subloop shows which of your content brings in subscribers who stick around — and which quietly brings the ones who churn.

Dedicated Ghost integration, used once, never stored.

Not on Ghost? Get early access for your platform →
Subscriber value reportSample

7.8 mo vs 2.9 mo stayed.

1Deep dives$1,638High value
2News roundups$957Volume trap
3Hot takes$744Churn magnet

Sample data · value at subscribed prices · months subscribers stayed

The problem

Signup counts can point you at the wrong content.

A post can bring a wave of new paid subscribers who quietly cancel two months later, while a quieter post brings people who stay for years. If signups are all you watch, both look the same — so you make more of the wrong thing. Subloop connects each piece of content to who subscribed after it and how long they stayed, so you can see subscriber quality, not just volume.

Sample report

Your deep dives convert fewer readers than roundups — but their subscribers stay 2.7x longer.

That's the kind of sentence the report exists to give you. The table underneath is the proof.

Run it on your data
Best value signalDeep dives
Attribution coverage68%
Paid subscribers67
Content typeSignupsAvg months stayedSubscriber valueSignal
Deep dives147.8 mo$1,638High value
News roundups222.9 mo$957Volume trap
Hot takes311.6 mo$744Churn magnet

Attribution coverage is the share of paid signups the report could connect to content.

How it works

Three steps, no account, nothing stored.

Inspect the sample

See exactly what the report looks like before you share anything at all.

Run it on your Ghost data

Paste your site URL and a dedicated custom integration key. It's used once for read-only queries, never stored, and can be deleted right after the report.

Read the signal

See which content types bring subscribers who stay, and what that's worth at your subscribed prices.

Platforms

Runs on Ghost today. You pick what's next.

Ghost is first because it runs on your own Stripe — subscriber value at real subscribed prices and native signup attribution, the data this report needs. Beehiiv, Substack, and Kit (formerly ConvertKit) are next in line, and the early-access list below decides the order.

Early access

On Ghost? Run it now. On anything else? Tell me what you run.

If you're on Beehiiv, Substack, Kit (formerly ConvertKit) — or you run memberships or courses — leave your details. What people say they run decides which platform gets built next, and I'll email you the moment it's ready for yours.

Dedicated Ghost integration, used once, never stored.

Built by Sam Packer — building in public@sampacker_o