Your Customers Aren't Coming Back
You Need A Retention Partner

See why 8/9-figure Shopify brands trust us to run their email, SMS & Direct Mail marketing

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200M+
Emails Sent
$52M+
Revenue Generated
24+
Shopify Brands
The Situation

Right now, your retention marketing program looks something like this...

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Your returning customer rate is down.

Average order values are climbing, but returning customers are dropping every single month.

Your email/SMS list isn't growing

A massive pool of window shoppers is slipping through the cracks.

Your automation flows are old & ignored

Random emails sent at random times, disrupting the customer journey.

Your segmentation isn't useful

You have no idea if high-value customers are engaging or quietly unsubscribing.

Your team is overwhelmed

They can't keep up with 4-5 campaigns a week, making it impossible to work on deep strategy.

What We Do

We're Responsible For
3 Objectives

Converting window shoppers

List growth, welcome flows, and tested acquisition offers tuned to convert window shoppers into 1st-time customers.

Re-engaging one-time buyers

Post-purchase flows, segmentation, and win-backs that pull one-time buyers back for orders 2, 3, and beyond.

Compounding average LTV

Direct mail, loyalty, and deeper cohort analysis to lift the lifetime value of every customer that makes a purchase.

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How we do it

Your Bolt-On
Retention Team

We're not just an email mockup factory... Our work goes beyond the inbox.

01

Retention Strategy

Leaning on our team to architect every lifecycle touchpoint with your customers - from first ad click to fourth purchase to dormant win-back.

Lifecycle Mapping/ Cohort Analysis/ Flow Buildouts/ Quarterly Consulting
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Retention Strategy
02

Email & SMS

Generating 35%+ of all revenue from retention channels that scale with your brand. Real send rhythm, real flows, real revenue on every campaign.

Acquisition Offer/ Pre-Purchase Nurturing/ Win-Backs/ Unlimited SMS
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Email & SMS
03

Direct Mail

Generating meaningful profit from the most untapped retention marketing channel. Targeted, triggered, ROI-positive sends to dormant high-LTV cohorts.

Subscriber Reactivations/ Flow-Triggered Postcards/ Seasonal Promo Cards
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Direct Mail
04

Loyalty

Building a truly valuable rewards program that drives incremental value from your top 5% customers - the cohort that quietly funds the next 12 months of growth.

Tiered Programs/ Reward Architecture/ VIP Lanes/ Loyalty Reporting
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Loyalty
05

Subscription

Boosting subscription take rate & reducing 90-Day churn to build a world-class recurring revenue stream that compounds quietly in the background.

Take-Rate Offer Tests/ Churn Prevention/ Habit Forming Flows (Month 1-3)
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Subscription
Our Results

Trusted By Our Amazing Clients

See what we've done for a handful of brands we've helped.

Results #1

World-Class Magic, World-Class Retention

Theory11 creates the world's greatest playing cards & games, partnering with the likes of Neil Patrick Harris, Zach King, and more. By bringing their brand's magic to the inbox, we've increased their email Campaign engagement by 260%.

After Duh Retention:

  • +260% email campaign engagement
  • 2x first-time PUR revenue
  • 165 campaigns shipped in 9 months
Theory11Theory11
First-Time PUR Rev
2x
Campaigns (In 9 Months)
165
Results #2

50+ New Product Drops, Every Week

Partnering with over 1,000+ licensed IPs, Youtooz brings the internet's most memorable moments to life. In the first 90 days, we launched 3 of their largest revenue generating Campaigns of the year.

After Duh Retention:

  • 2.35x average email engagement
  • +64% YoY email revenue lift
  • 3 of their biggest revenue campaigns of the year shipped
YoutoozYoutooz
Email Engagement
2.35x
Email Revenue (YoY)
+64%
Results #3

Knocking Out Email Revenue Plateaus

Yokkao is globally renowned for their Bangkok-crafted Muay Thai gear, partnering with legendary icons like AKA, Superlek, and Wiz Khalifa. In the first 45 days, we rebuilt their lifecycle program and unlocked a brand-new revenue tier.

After Duh Retention:

  • +92% email-attributed revenue in 45 days
  • 4.2x lifecycle flow ROAS
  • Full lifecycle rebuild across 12 core flows
YokkaoYokkao
Email Revenue
+92%
Flow ROAS
4.2x
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Next Steps

Unlocked: Your Free
Retention Audit

Here's what will happen once you click the big blue button below:

Step 01

Book A Call

Pick a 30-minute slot. We'll learn about your business, where you've been, and where you're trying to go - so we can decide if we're a good fit.

Step 02

Free Retention Audit

We do a free, unfiltered audit of your retention program - copy, design, flows, deliverability, SKU mix, send timing, and cohort velocity.

Step 03

Partner Up or Part Ways

We hop on a 1-hour call to walk the audit, share our recommended roadmap, and decide together: partner up, or part ways with a clearer playbook.

In this Retention Audit, you'll get...

Duh


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Only 6 audits available this month
Top FAQs

Questions Brands Always Ask Us...

Why work with Duh instead of building a retention team in-house?

If you were to build a full retention team in-house from scratch, here's what it actually takes:

  • Lifecycle Lead · $120K/yr
  • Retention Strategist · $90K/yr
  • Email/SMS Specialist · $60K/yr
  • Copywriter · $50K/yr
  • Designer · $50K/yr

That's $370K/yr in salaries alone, before benefits, before software, before the months it takes to find and ramp them. And that's assuming you can actually hire and retain that level of talent.

Working with us is a fraction of that cost. Plus you get the breadth of every experiment we've run across dozens of other 8-figure brands - context you can't buy with a single in-house hire.

We already have an internal marketing lead. Will you step on their toes?

The opposite. The best brands we work with already have an internal lead - they brought us on because they want to do more, test more, and finally ship the higher-level lifecycle initiatives that they couldn't do without us.

We give your team the time and space to focus on strategy without sacrificing day-to-day performance.

What about $4K/mo email agencies - aren't those a cheaper alternative?

What you put in is what you'll get out. If you pay someone $4K a month, you're getting Canva templates, outsourced copy, and a faceless account manager checking boxes.

When you work with us, every dollar you spend is tied to a specific outcome - and you get an ROI from the work we ship. Hands down.

How long does setup take? When do we see results?

Within 7 days of kickoff, our first email campaign ships live. From there:

Day 30 · your email and SMS list is growing faster than it is today.
Day 45 · your top 3 automation flows have been tested and are generating more revenue.
Day 60 · your weekly campaign sends are outperforming your current baseline.

How much work does my team have to put in?

The only thing we need from your team is approval on our work. We're fully capable of leading both strategy and execution without holding your team's hand.

You'll review weekly campaign sends, sign off on flow rebuilds, and approve quarterly roadmap updates. That's it.

How are your services structured? Any contracts?

Month-to-month, no contracts. Before jumping in, we send your team a custom proposal for the exact scope of work you need - so you know what you're paying for and what you'll get.

If we're a long-term fit, we offer generous discounts for 3, 6, and 12-month commitments.

Our Guarantee

We Outperform Within 90 Days

Our plan of attack. Here's everything our team will build:

Lifecycle Map

A visual map of every retention touchpoint your brand sends to a customer.

Acquisition Offers

A handful of high-converting welcome offers that increase first-time customer sales.

Interactive Popups

Our team will run dozens of tests to skyrocket your monthly email & SMS list growth.

Pre-Purchase Flows (Email/SMS)

The set of automations that turn window shoppers into high-value customers.

Post-Purchase Flows (Email/SMS)

More reviews. Fewer CX tickets. Higher returning customers. The automations that punch a hole through your lifetime value ceiling.

45+ Campaigns

Full strategy & execution included (copy, design, management).

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ShopifyShopify KlaviyoKlaviyo PostscriptPostscript AttentiveAttentive RechargeRecharge Stay AIStay AI PaperRunPaperRun PostPilotPostPilot RivoRivo

We'll audit your entire retention program. Completely Free.

We'll jump into Shopify, Klaviyo, Postscript - every tool you use - and pinpoint the gaps in your retention strategy.

After 4 days, we meet on a call & show you everything we uncovered: what's good, what's bad, and a full Retention Roadmap of what we'd do to add the most value in 90 days.

Worst case, you keep the audit for free.

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Only 6 audits available this month