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Your email agency,
replaced by an engine.

The Shuttle System connects to your Shopify and Klaviyo, learns what your customers actually buy, and produces your entire month of email: strategy, calendar, copy, design. AI does the heavy lifting. A human designer finishes every send. You approve everything.

Trusted by

Everything from strategy to send. Done, not delegated back to you.

Monthly Strategy Memo
A real diagnosis, every month.
Monthly Strategy Memo

The engine reads your store: top sellers, fading products, lapsed cohorts, flow gaps. Then it writes a memo with this month’s three priorities. Not a template. Your numbers, your plan.

Campaign Calendar
A month of sends, each with a reason.
Campaign Calendar

6 to 16 campaigns scheduled across the month, every one tied to a memo priority: which products, which segment, which date, and why. You see the reasoning before anything is built.

Email Creative
AI-built. Human-finished.
Email Creative

Every email is generated from your real catalog: actual products, actual prices, your voice, your visual language. Then a designer finishes it before you ever see it. No stock vibes. No AI weirdness.

Designer Polish
The 20% that makes it yours.
Designer Polish

AI gets each email 80% of the way. A designer takes it the rest: sharpening copy, perfecting imagery, making the brand calls software can’t. Every send passes a human eye. Every single one.

4.2k
1.8k
920
610
Approval Dashboard
You sign off on everything.
Approval Dashboard

Drafts live in your dashboard. Review, request changes, approve, and message the team right there. No Slack channel, no email chains. Nothing reaches your subscribers without your sign-off.

+38%
flow revenue
Klaviyo Push & Scheduling
Approved means scheduled.
Klaviyo Push & Scheduling

Approved campaigns land in your Klaviyo as scheduled drafts. Your account, your data, our engine. If you ever leave, everything stays with you.

Inbox rate
98%
Brand Intelligence
Sharper every night.
Brand Intelligence

The engine re-reads your store nightly: product velocity, customer cohorts, what your list opens and buys. Every month starts smarter than the last.

A
B
Variant B +24%
Performance Reporting
Revenue you can see.
Performance Reporting

One monthly report on what matters: revenue per send, top performers, repeat-purchase movement, and what changes next month. No vanity metrics.

Emails people open, click, and actually remember.

Programs built by the Shuttle System on real product catalogs, finished by human designers. Native to the inbox, unmistakably the brand.

IronFlip · Cookware
Belly Babe · Beverage
The Zoomies · Pet
Coremode · Apparel

Retention looks different in every industry.

Pick your vertical and see what the engine builds for it. It learns each catalog: a skincare brand and a cookware brand never get the same playbook.

Email creative
Triggered
Email
Wait
SMS
SMS · delivered

Now picture the engine running on your catalog.

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The Shuttle System: how your retention actually runs.

Notion
Notion
Jasper
Jasper
ChatGPT
ChatGPT
Claude
Claude
Figma
Figma
Midjourney
Midjourney
Adobe Illustrator
Illustrator
Canva
Canva
InboxShuttleShuttle System
SHUTTLE OSLIVE
run
Campaign · building
Flow · activating
Audience · matched
4,210
1,820
760
Campaign revenue$0
  1. Connect. Link Shopify and Klaviyo in minutes. The engine pulls your catalog, order history, segments, flows, and past performance, and reads your site for voice, color, and style.
  2. Learn. Nightly, it computes what a senior strategist would: best sellers, products gaining and losing steam, lapsed cohorts, flow gaps, which subject lines your list actually opens.
  3. Plan. Each month it writes your strategy memo and proposes your calendar. The founders review both. You see the plan before a single email is built.
  4. Build. Every campaign generated end to end: layout, copy in your voice, imagery anchored to your real product photos. Then a human designer finishes it.
  5. Ship. You approve in your dashboard. Approved emails push to Klaviyo, scheduled. Results sync back nightly and feed next month’s plan.

You won’t juggle agencies, freelancers, and AI tools again. One engine, tuned to your data, with human judgment at every gate. It compounds with every send, and every order.

One engine. Three ways to run it.

Every plan is the full Shuttle System: strategy, calendar, creative, designer polish, approval dashboard, Klaviyo push, reporting. Month-to-month. Fire us any month; we earn the next one.

What you're leaving on the table
Annual opportunity
$306,000 - $486,000

Industry benchmark (Klaviyo data): the size of the opportunity, not a promise of results.

🚀 Founding rate, first 5 brands only. $2,500/mo, install fee waived, in exchange for a case study and two introductions. Locked 6 months, then standard pricing. When the spots are gone, they’re gone.
Core
DTC $1M-$8M
$4,000 / month+ $2,000 install

The full engine, installed and running.

  • 6-8 campaigns per month
  • Monthly strategy memo
  • Designer polish on every email
  • Approval dashboard
  • Klaviyo push and scheduling
  • Monthly performance report
Capture the repeat revenue your list is already worth.
Scale
DTC $25M+
$9,500 / month+ $6,000 install

A full retention program with creative oversight.

  • 16+ campaigns per month
  • Everything in Growth
  • Weekly strategy syncs
  • Full flow program
  • Multi-round polish with creative direction
  • A/B testing program
Retention becomes your most predictable growth channel.

No long contracts. Retention compounds month over month, and so should your reasons to stay. If the engine isn’t earning, you leave. That’s the deal.

Before you apply

Questions?
We’ve got answers.

Tap any question for a straight answer, including whether we’re the right fit for your brand.

Apply to work with us
InboxShuttle
InboxShuttle
Online · replies instantly
Hey, I’m InboxShuttle.

Tell us about your brand. We’ll tell you if we can help.

Show us where retention stands today. If there’s real money on the table, we’ll show you exactly where, before you pay anything.

1
You applyYour brand, your stack, where retention stands.
2
A founder reviews itPersonally, within one business day.
3
You get a real auditIf we can help, we show you where the revenue is. No pitch deck.

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We review every submission personally. If we think we’re a good fit, you’ll hear from us within 1 business day.