For SaaS founders at £1k–£20k MRR
SubSignal watches login frequency and Stripe signals, then sends a weekly email — specific customers, specific reasons, one action each. No dashboard. No scores. Just signal.
How it works
01
Install the snippet
Two lines of JavaScript. No build step, no SDK. Paste it into your app and it starts tracking logins and feature events immediately.
02
Set your thresholds
You define when to be alerted. No black-box scores — just rules you write. If a customer hasn't logged in for 14 days, flag them. Simple.
03
Read your digest
Every Monday morning: who went quiet, why they were flagged, and a copy-paste email to send them. Done in under five minutes.
The problem
By the time a payment fails, the customer already decided to leave — weeks ago. SubSignal catches the quiet: the login that stopped, the feature they used every day.
No. You define the conditions — no logins for 14 days, fewer than 5 events in a week, a failed payment. SubSignal fires when a customer breaks a rule you wrote. You always know exactly why.
Stripe tells you who cancelled. SubSignal tells you who's about to. Payment failure is the last signal — login drop and feature abandonment come weeks earlier.
Under 10 minutes. Add two lines of JS to your app, paste your Stripe keys, set your first threshold. The first digest arrives the following Monday.
Up to 10 tracked customers, all three alert types, and the weekly email digest. No card required to start.