Beta

Acquisition marketers are CRO scientists.
It's time retention marketers were too.

Klaviyo shows immediate conversions — not how messaging affects cohorts over time. Zaymo runs the experiment, measures true LTV, and automatically tees up the next test so your retention program compounds over weeks rather than months.

Talk to founders about joining beta

Retention LTV analytics by cohort

Now testing with

Just Ingredients

PlantPaper

Create Wellness

Retention testing is brutal today.

Klaviyo measures message-level attribution instead of measuring how a customer performs over time.
So you split lists by hand, wait weeks for cohorts to mature, and re-run the numbers six times just to call a winner.
By the time you've learned anything, you could have stood up several new tests.

The slower the loop, the slower you learn.

Zaymo is building an autonomous testing loop: from hypothesis to LTV.

You bring the hypothesis. Zaymo runs the experiment, measures what actually matters, and tees up the next one.

01 / 05

Step 1

Hypothesis

Start with a hunch so Zaymo knows where to start.

Step 2

Variation generation

Zaymo generates variants of your existing content to test your hypothesis.

With a strong starting point, AI is really good at subject line variants, image tweaks, and copy changes.

You approve or edit the options.

Step 3

Test setup

Zaymo builds the test structure with CRO best practices for flow structure and cohort tagging. It's set up with data integrity in mind.

Step 4

Analytics

Track LTV in all the ways you wish you could but never did:

Use gross profit instead of revenue
Track cohorts after the test stops receiving new recipients

Step 5

Chat with your data

Ask questions about your retention data in plain English and continue the testing loop with agent-initiated suggestions.

Zaymo is building an autonomous testing loop: from hypothesis to LTV.

You bring the hypothesis. Zaymo runs the experiment, measures what actually matters, and tees up the next one.

1

Hypothesis

Start with a hunch so Zaymo knows where to start.

2

Variation generation

Zaymo generates variants of your existing content to test your hypothesis.

With a strong starting point, AI is really good at subject line variants, image tweaks, and copy changes.

You approve or edit the options.

3

Test setup

Zaymo builds the test structure with CRO best practices for flow structure and cohort tagging. It's set up with data integrity in mind.

4

Analytics

Track LTV in all the ways you wish you could but never did:

Use gross profit instead of revenue
Track cohorts after the test stops receiving new recipients

5

Chat with your data

Ask questions about your retention data in plain English and continue the testing loop with agent-initiated suggestions.

No more bottlenecks between retention leaders, content teams, and data teams.

Optimize your marketing more quickly

Tighten the test → measure → iterate loop so every cycle teaches you something, instead of stalling for a quarter on a single experiment.

Focus on the metrics that actually matter

Measure true LTV and gross profit per cohort, so you know whether a winning discount is actually winning or just driving revenue with unsustainable margins.

No data team required

Warehouse-grade retention analytics and agentic testing, without building a Snowflake stack or hiring analysts.

Why we're building this

Retention deserves a lab.

Acquisition marketers have spent a decade becoming scientists. Every headline, audience, and offer gets tested, measured, and improved. The whole discipline runs on evidence.

Retention never got those tools. Lifecycle flows ship on gut feel, and almost no one measures what a change does to long-term customer value. The work is just as important — it's where loyalty and LTV are won — but it's flying blind.

We're building autonomous lifecycle testing to close that gap: to give retention teams the same rigor, without the manual setup. You bring the hypothesis; Zaymo runs the experiment and measures what actually matters.

Danny & Brice

Founders, Zaymo

Frequently asked questions

Have a question we didn't cover? Book a call and ask.

The Zaymo founders work closely with you to execute the testing lifecycle — partially with software and partially with manual work. Insights that Zaymo gets during this process inform new features to be built. In the meantime, you get a team of experts working on your testing for the price of software.

No. Zaymo builds the flows, tags the cohorts, and models the retention data for you — no Snowflake stack or analysts required. If you are technical, there's an API and MCP to plug Zaymo into your own stack.

Yes. Zaymo builds and tags experiments natively in Klaviyo, so your tests live right where your flows already do.

Most tools only generate creative variations, or only build dashboards. Zaymo puts testing, true-LTV measurement, and content generation in one loop that feeds itself, using each result to shape the next test. That closed loop is the part nobody else does.

Zaymo tracks each test cohort over time — well after the test window closes — and attributes downstream revenue back to the variant each customer received.

Only if you want to. This loop can operate with you in every detail or on its own. You'll likely start fairly involved and then slowly give more autonomy to agents to execute the loop on your behalf.

Be first to run retention like a scientist.

Autonomous lifecycle testing is rolling out now to a small group of retention teams.

Talk to founders about joining beta