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TitanCoreWelcome flow
The top of the TitanCore welcome email

We rebuild one of your emails, so you can A/B test it against what you send now.

Book a free audit

Claim your free email on the call.

A pop-up, built the way we build them for stores.
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Give customers a reason to come back.

Email campaigns, SMS and automated flows for online stores. No retainer: if it doesn't perform, we don't get paid.

Book a free audit Run your own numbers

Free 30-minute call with Robin Coumans, founder

A selection of emails we built

Email for brands like

  • Voana
  • TitanCore
  • Qnuss
  • The Car Parfum

Built on trust. Paid on results.

Most agencies get paid whether they perform or not. We don't. We take a commission on the revenue we actually generate, with an upper limit we agree up front.

How your invoice works

Monthly retainer
€0Retainer agency: fixed, every month
Commission
A percentage of the revenue we generate for you
Upper limit
Agreed up front, so you never overpayRetainer agency: none
A slow month
Our pay drops with itRetainer agency: you pay the full fee
If it doesn't perform
We don't get paidRetainer agency: you still pay
Contract
Three months minimum, then month-to-month with one month's notice

Your exact numbers are walked through on your free audit call. How the commission works

Book a free audit
From:
Robin Coumans, Founder, RetenlyLab
Subject:

You work with us, not a junior.

Most agencies hand you off to a junior account manager the moment you sign. We don't work that way. You work directly with the people running your account.

Robin Coumans Founder, RetenlyLab

A free audit with Robin.

Already on Klaviyo? Robin goes through your setup himself and shows you where you're leaving money on the table. Not set up yet? He maps out a plan to get you there.

Book a free audit Run your own numbers

Run your own numbers.

Set your monthly store revenue and the extra revenue you want to test. You see what it's worth, and what it would cost you: a capped share of the revenue we actually generate, never a retainer.

  • No monthly retainer
  • A capped commission, agreed up front
  • Three months minimum, then month-to-month
€100,000

Extra revenue to test

As a share of your monthly revenue

Extra revenue at this lift

+€10,000 a month

Extra a year
+€120,000
New monthly revenue
€110,000

What you'd pay us

If it performs
A capped shareof the revenue we generate
If it doesn't perform
€0We don't get paid
Book a free audit

Robin walks you through what's realistic for a store doing €100,000 a month.

A lift you choose to test, not a forecast or a promise. Your real numbers depend on your list and setup; you get them on the free audit.

The emails that run every day without anyone pressing send.

Welcome, abandoned cart, browse abandon, post-purchase and winback, rebuilt properly.

How each flow works

The first emails a new subscriber gets: who you are and why to buy.

Brand intro. A welcome that tells your story in your own voice.

A reminder for shoppers who left something behind.

Reminder first, then proof. A discount resend, then reviews and the guarantees that take away the doubt.

A nudge for people who looked but didn't add to cart.

Answer the doubt. Common questions and reviews, or a short guide to pick the right product.

Thank-you and follow-up emails that set up the second order.

Get the first use right. From the shipping email to a map of the first 90 days.

A reason for lapsed customers to come back.

Restart the routine. Voana asks whether the rash came back now the jar has run out.

Email campaigns

Weekly campaigns that earn their place in the inbox, planned in a content calendar and tested on every device and client.

More on email campaigns
  1. Week 1
  2. Week 2
  3. Week 3
  4. Week 4

  • SMS

    Short, well-timed messages that turn into revenue without annoying your list.

    SMS and pop-ups

  • Pop-ups and forms

    Pop-ups and forms that grow a list worth emailing, tested continuously.

    How we build them

  • Strategy and audit

    Already on Klaviyo? Robin goes through your setup himself and shows you where you're leaving money on the table. Not set up yet? He maps out a plan to get you there.

    Book a free audit What the audit covers

  • Reporting

    Your client portal shows revenue, campaign and flow performance, and what we're building next.

Real emails for real stores.

We plan, write, design and build every email for your brand, then test it on every device and client, because a broken render is lost revenue.

Brands

All emails11

Yes, it actually works. Real results from real women.

VoanaCampaignUGC and social proof

The Voana email in full

A selection of work for brands we partner with, currently or in the past. See all emails

From today to compounding revenue.

  1. Today

    The checklist

    Contract details sent, agreement signed, brand onboarding form completed, kickoff call booked. Twenty minutes of your time.

  2. Day 0–7

    Foundations

    Kickoff call, full account audit, baseline numbers locked in, deliverability check, content calendar and first campaign concepts for your review.

  3. Day 7–45

    The build-out

    Every core flow rebuilt and live, sign-up forms replaced, weekly campaigns running, reporting live in your portal.

  4. Day 45+

    Always-on testing

    Subject lines, send times, offers, design, segments. Continuous testing on a list that keeps getting better.

  • Communication

    Slack, WhatsApp or Discord. Questions answered same working day, Monday to Friday.

  • Calls

    Every two weeks. Performance, what's next, and anything you want to dig into.

  • Reporting

    Live in your portal, updated daily. Plus a written weekly summary.

Answered questions.

The questions stores ask before they sign.

Robin answers these himself on your audit call.

What if it doesn't perform?

Robin CoumansFounder, RetenlyLab

Then we don't get paid. Our entire model is built on performance. We only make money when we generate revenue for you. That's not a guarantee in fine print, it's how we're structured. The risk is on us, not you.

Are you going to lock me into a long contract?

Robin CoumansFounder, RetenlyLab

We start with a three-month minimum so there's time to actually build and prove the work, then it's month-to-month with one month's notice. No long lock-ins. Our clients stay because the results are there, not because they're trapped.

How does your pricing work?

Robin CoumansFounder, RetenlyLab

No monthly retainer. We take a commission on the revenue we actually generate for you, with a capped percentage agreed up front so you're never overpaying. Great month, we both win. Slow month, you're not stuck paying for results that didn't come. Book a free audit and we'll walk you through the exact numbers for your brand.

How are you different from other agencies?

Robin CoumansFounder, RetenlyLab

Two ways. First, you work directly with the people running your account, not a junior who got handed your brand after the sales call. Second, we're paid on results, not a flat retainer, so our incentives are fully aligned with yours. Most agencies get paid whether they perform or not. We don't.

How fast can you go live?

Robin CoumansFounder, RetenlyLab

It depends on whether your Klaviyo account is fresh or established. On a brand-new account, the first one to two weeks are spent warming up the domain with high-engagement flows and campaigns. This protects your deliverability long-term. After warm-up, we launch the conversion-focused campaigns and flows, with the full core package live within about a month. If your account is already established and doesn't need warming up, it's faster. More like one to two weeks from start to finish.

What platforms do you work with?

Robin CoumansFounder, RetenlyLab

We work primarily in Klaviyo for email and SMS, and integrate with the tools your store already runs on. If you're already set up, we optimize what you have. If you're starting fresh, we build it right from the ground up.

Do you only work with big brands?

Robin CoumansFounder, RetenlyLab

We work with a range of brands, but we're at our best with stores ready to take retention seriously and scale it. Book an audit and we'll tell you honestly whether we're the right fit. If we're not, we'll point you in the right direction.

Book your free audit today.

Robin walks through your account himself. A 30-minute call, no obligation.

New message

To: Robin Coumans, RetenlyLab

Subject: Free audit for my store

Hi Robin, could you take a look at my store's email setup? I'd like to book the free 30-minute audit.

Book a free audit

Opens the booking calendar in a new tab.

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