73% of customers who go quiet for 14 days cancel within 60 days.
Retainr spots them at day 3 — not day 14.
Retainr connects to Stripe, spots at-risk customers 30–60 days early, and helps you save them with AI-written personal emails. No CS team needed.
Works with your existing stack
Everything you need to stop churn,
nothing you don't.
Built specifically for solo founders and micro-SaaS with under 1,000 customers. Not another enterprise dashboard you'll never finish setting up.
Smart Alerts
Rules-based scoring works from day 1 with 50 customers. Gets smarter over time. Every alert comes with a plain-English explanation — no black boxes, no guessing.
Your Voice, Not Ours
Train the AI with 3 past emails or describe your tone. Every retention message sounds like you wrote it personally at 11pm — because that's what actually converts.
One-Click Retention First
Review AI-suggested actions and send with one click — or enable full automation once you trust the system. You approve the first 10 actions, then optionally hand it off.
Real Stripe Actions
Apply coupons directly to customer accounts, pause subscriptions, retry failed payments, and create custom invoices — all from one dashboard without touching Stripe.
Safety Rails Built-In
Set maximum discount percentages, action limits per week, and pause automation anytime. Retainr never does anything you'd be embarrassed to explain.
Weekly ROI Digest
Every Monday, get a beautiful "You saved $X this week" email with exactly which customers were retained and how. Your board deck writes itself.
3-Minute Setup
Connect Stripe in 60 seconds. Add PostHog or any analytics in another 60. Your first at-risk alerts appear within hours, not weeks.
ROI Tracking
Every retention action is tracked to outcome. See exactly how much MRR was saved, what worked, and what to do more of. No guessing.
Here's exactly what happens
Works with Stripe only. PostHog optional for deeper signals.
Connect Stripe
One click. No code. Takes 60 seconds.
Retainr reads your data
We pull invoice history, payment status and subscription data automatically.
Weekly email every Monday
"You have 3 customers who need attention this week"
One click to act
Review AI written email, tap send. Done.
Founders are keeping more of what they earn
Retainr caught that Marcus hadn't used our core feature in 3 weeks and auto-sent a perfect check-in email. He replied in 2 hours and upgraded. That's $149/mo I would have lost.
The brand voice training is scary good. My customers literally reply asking if I wrote the email myself. Churn went from 8.2% to 2.4% in 6 weeks.
I was skeptical — another AI tool promising the moon. But the plain-English explanations convinced me. 'Sarah hasn't used reports in 22 days' is something I can actually act on.
See Retainr in action
Everything you need to stop churn — in one clean dashboard
At-a-glance view of your MRR, churn risk and at-risk customers
Know exactly who is at risk, why, and how much MRR is at stake
I noticed you haven't logged in recently and wanted to see if there's anything I can help with.
One click generates a personalized email in your brand voice
saved you $480
Every Monday — exactly how much MRR Retainr saved you this week
Pay less than you save in the first week
No contracts. Cancel anytime. 14-day free trial on paid plans.
Perfect for early-stage founders just getting started.
- Up to 150 customers
- Basic churn alerts
- Dashboard & reports
- Email notifications
- Stripe sync
All plans include a 14-day free trial. No credit card required to start.