Every Customer Gets Their Own Email

Not a template. Not a segment.
Theirs.

Every customer gets a unique email — layout, copy, tone, offers — all from their actual behavior. Then we prove it drove revenue you wouldn’t have gotten otherwise.

Start Your Free 14-Day Pilot →yes, actually free

Connects to your existing stack

KlaviyoBrazeIterableAttentiveSalesforce MCHubSpotMailchimpSendGrid

How It Works

Three steps. We do the hard parts.

01

Share a Read-Only API Key

Klaviyo, Braze, Iterable, whatever you use. We pull customer data, purchase history, and engagement signals automatically. No CSV exports. No data prep. Five minutes, tops.

02

We Write 1:1 Emails

Every customer gets their own email. Different layout, different copy, different offers. All from their real behavior. Every campaign goes through human review before sending.

03

You Get a Report

Every month: a clear incrementality report showing exactly how much revenue those emails drove. With statistical confidence. Then the AI gets smarter for next time.

Why I Built This

Michael Jacqmein

Michael Jacqmein

Founder · CDP & Marketing Technology

I've spent my career in CDPs, identity resolution, and marketing technology. I've watched brands call it “personalization” when all they're doing is dropping a first name into a template. That always bugged me. AI can do so much more.

Most “personalization” is merge tags in templates. Nobody can prove it drives revenue. Nobody learns what actually works.

Scalversion does two things that don't exist together today: AI that writes a unique email for every customer from their real behavioral data, and holdout-based measurement that proves whether those emails made you money you wouldn't have gotten otherwise. Then it feeds those learnings back in. Next campaign's better.

It's just me. Solo founder. I built this because I saw the gap firsthand and it needed to exist. No fake team page, no inflated metrics. Just good emails, honest measurement, and math that doesn't lie. (Yes, this pitch was written by AI too. That's the point.)

— Michael

It Gets Smarter Every Send

Every campaign teaches the next one what works. That's the whole point.

1
Design
AI writes a unique email for each customer, based on their actual behavior
2
Send
Deliver those emails alongside randomized holdout groups
3
Measure
Isolate the incremental lift with statistical rigor
4
Learn
Figure out which patterns, offers, and tones actually drove results
5
Improve
Feed it all back in. Next campaign's smarter than the last.
Rinse, repeat. Better emails, more lift, every cycle.
DesignSendMeasureLearnImproveSelf-Improving

Real Data In. Unique Emails Out.

Every customer has a different story. So every email should be different too. This isn't segmentation. It's one email per person, written from scratch.

🛒
Purchase History
12 orders, avg $84 — from your ESP
📱
Browse & Cart Events
Viewed 3 dresses, abandoned 1 cart
⏱
Klaviyo Churn Risk
HIGH — no visit in 28 days
📧
Email Engagement
Opens promos, ignores sale alerts
💰
Predicted CLV
$420 lifetime value — from Klaviyo
📅
Next Order Prediction
Expected in 6 days — from Klaviyo
AI
SM
Sarah M.
Win-back · Premium affinity
The cashmere you love is back (in a new color)
We noticed you bought the Everlane cashmere crew in slate. The new cognac shade just dropped…
JK
James K.
Cart recovery · High intent
Your espresso maker ships free if you finish checkout
You left the Breville Barista Pro in your cart. Here’s free shipping to seal the deal…
PR
Priya R.
Browse abandon · Discovery
3 new arrivals picked for your style
Based on what you’ve been browsing, we think you’ll love these three new pieces…
DL
David L.
Expansion · Loyalty tier
Your loyalty reward unlocked early
You’re 1 order away from Gold tier. We’re giving you early access to the 20% reward…
Same brand. Four customers. Four completely different emails. All written by AI from real behavioral data.

What You Get

Better campaigns. Proof they work. Insights that compound.

Included
  • ✓1:1 emails written from real behavioral data
  • ✓Full email design, copy, and layout. Not templates.
  • ✓Every campaign goes through human review before sending
  • ✓Randomized holdout groups for causal measurement
  • ✓Monthly incrementality report with confidence intervals
  • ✓Learnings fed back into AI so campaigns keep improving
  • ✓Works with Klaviyo, Braze, Iterable, Attentive, SFTP
  • ✓PII encryption at rest and in transit
Sample: Monthly incrementality report
Sample incrementality report
Sample report — holdout-based measurement with statistical confidence

Pricing That Makes Us Prove It

Free pilot. Real data. No commitment. If the numbers don't work, walk away. We only make money when you do.

Holdout$24kTreatment$38k+58%lift
14-Day Pilot
Free

We run on a subset of your traffic and deliver a full incrementality report. Real holdout data. Real revenue numbers. No credit card. No catch.

  • ✓AI-personalized campaigns on test segment
  • ✓Randomized holdout groups
  • ✓Incrementality report with confidence intervals
  • ✓Cancel anytime, no credit card required
Start Your Free Pilot
After Your Pilot
Growth
$10,000/mo
+ 5% of proven incremental revenue

Performance fee is based on holdout-measured lift only. If we don't drive measurable incremental revenue, you don't pay it. Simple.

  • ✓Everything in the pilot, ongoing
  • ✓All ESP integrations
  • ✓Monthly incrementality reports
  • ✓Campaign performance insights
  • ✓Direct access to the founder
  • ✓Month-to-month, cancel anytime
Start with a Free Pilot →
How the performance fee works
A random group of your customers doesn't get the personalized email. The revenue difference between that group and the ones who did? That's your incremental lift. You pay 5% of that. Every invoice is backed by data you can check yourself.

Frequently Asked Questions

Your customers aren't all the same. Why are your emails?

14-day pilot. Real holdout data. Zero commitment. If the numbers don't impress you, we shake hands and part friends.

Let's Talk →