The only email tool that connects directly to your app.
- Drop in one API call to capture every signup — no imports, no manual syncs.
- Broadcast updates or schedule campaigns — reach your entire user base in seconds.
- Keep users warm from day one — welcome emails fire automatically on signup.
The problem
Most founders lose users in the first 14 days.
Not because their product is bad. Because nobody followed up.
Features
Everything you need. Nothing you don't.
Built specifically for indie founders and early-stage SaaS teams who need onboarding to just work.
How it works
Set up once. Run forever.
Three steps is all it takes to automate your entire user onboarding.
Install the webhook
Paste one fetch() call at the end of your signup logic. Pass your user's email, name, and ID. That's the entire install — under 5 minutes.
await fetch('https://testipules.com/api/connect', {
method: 'POST',
headers: {
'Authorization': 'Bearer cd_live_xxx',
'Content-Type': 'application/json',
},
body: JSON.stringify({
userId: 'kaod87tcv6iubqn390t183tgbw',
email: 'user@example.com',
name: 'Jane Doe',
}),
})
})Broadcast or schedule
Send updates to your full list or schedule a campaign in advance. We handle delivery.
Track everything
See who opened, clicked, and unsubscribed. Use the data to improve every future send.
Pricing
Simple, transparent pricing.
Join the waitlist now to lock in early access pricing before public launch.
No credit card required to start.
·Subscriber and email limits are pooled across all projects.
Ready to give TestiPules a try?
Don't let your users go cold from day 1.