RetainIQ

The AdVantage · Mon + Thu

The AdVantage, in one place.

Twice a week, every week, since 2023. A short read for D2C operators on retention, deliverability, and the unsexy work that compounds. Read it here, or get it in your inbox.

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Latest editionJun 2, 2026 · 4 min read

A Look Inside The Features Most Klaviyo Accounts Never Activate

The gap between owning Klaviyo and fully using it is bigger than most marketers realize.

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Recent reads

Fifteen recent editions of The AdVantage.

Jun 2, 2026 · 4 min read

A Look Inside The Features Most Klaviyo Accounts Never Activate

The gap between owning Klaviyo and fully using it is bigger than most marketers realize.

Read
May 25, 2026 · 3 min read

A subscriber you acquire today is worth 3x more than one you acquire in October

The math is uncomfortably simple

Read
May 21, 2026 · 5 min read

If we audit your email channel today, would we find growth or hidden leaks?

Most brands think their setup’s fine, until the numbers say otherwise..

Read
May 18, 2026 · 6 min read

We gave D2C email a living brain (and it’s under $1k/month)

A memory layer for your entire retention system - without enterprise pricing.

Read
May 13, 2026 · 4 min read

Inside a premium apparel brand’s record-breaking April

What worked, what broke, and what needs attention.

Read
May 11, 2026 · 4 min read

Bots Are Sneaking Into Your Email List (And Costing You Money)

Bots are filling your forms, skewing your data, and quietly driving up your ESP bill.

Read
May 6, 2026 · 6 min read

We cut their campaigns 57%. Revenue went up 19%.

The “more sends = more revenue” rule broke. Most brands haven’t caught up.

Read
May 4, 2026 · 5 min read

Why hey [first_name] is giving your customers “the ick”

Standard personalization is backfiring. Here’s the 2026 pivot.

Read
Apr 29, 2026 · 4 min read

Our worst email ever (and what it cost us)

One send. Three mistakes. Clicks up 6x after we fixed it.

Read
Apr 27, 2026 · 4 min read

The 15% Surcharge: How to raise prices without killing your LTV

Price up. Retention intact. This is how it’s done.

Read
Apr 23, 2026 · 4 min read

Why 17% email revenue attribution is a choice.

Flows firing, dashboard green, six figures quietly walking out the door.

Read
Apr 16, 2026 · 3 min read

Your paid ads are reacquiring customers, your email flows should've kept.

CAC keeps rising. Part of the reason is sitting inside your Klaviyo account.

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Apr 13, 2026 · 3 min read

We found a $7,800/month leak in a brand's email program. It took 30 minutes to spot.

Real numbers from a real account. Plus a free tool to check yours in 30 seconds.

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Apr 9, 2026 · 5 min read

We gave our AI a product brief. It came back with a newspaper!

One brief. Three concepts. Zero generic copy.

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Apr 6, 2026 · 3 min read

AI can write your emails. But it sure can’t run your channel!

AI scales your current baseline. The question nobody asks: what is it?

Read

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