Klaviyo sends the email. llea is the brain behind it.
What is the difference between llea and Klaviyo?
Klaviyo sends the email, and llea is the brain and intelligence behind it. llea scores every shopper’s purchase intent, decides who to email, writes a separate email for each one and picks products in stock in the shopper’s size. Klaviyo delivers that exact email, so you keep Klaviyo with no migration.
Compare with ChatGPTLast updated:

Ava, the black blazer is back in size S

You looked twice. It came back this morning.lleaIntent: highPurchase intent: high
01 / Why llea
What does the brain behind Klaviyo do?
llea is the intelligence: it decides who to email, what to say and which products to show. Klaviyo stays the sender.
- Scores every shopper’s purchase intent
- Decides who to email
- Writes each email for one shopper
- Picks products in stock in their size
Shopify Flow
- Sends that exact email
- Keeps your flows as they are
- Reports received, opened and clicked back to llea
01
Add a purchase intent score
Klaviyo predicts lifetime value, next order date and churn risk. llea gives every shopper an intent score and a segment on every plan, built from 100+ signals.
See purchase intent scoring02
Get every email written for one shopper
llea writes the subject and the note for each shopper in your brand’s voice, and Klaviyo sends that exact email.
See how llea personalizes03
Show picks in their size
Klaviyo’s recommendations skip items your catalog marks as out of stock. llea picks products in stock in the shopper’s size at the moment the email sends, and adds an offer only when the shopper needs one.
See how llea picks products04
Keep every flow you run
llea does not replace Klaviyo. The Klaviyo flows you already run stay as they are, and llea reaches Klaviyo through Shopify Flow.
See how llea connects to Klaviyo02 / See it
What does one email per shopper look like?
Pick a shopper. llea writes that shopper’s email from what the shopper browsed and what is in stock.

Olivia, the denim shirt dress is back in your size
You viewed it 3 times this week.
lleaIntent: high
10% off for youOLIVIA10
Our biggest sale of the season is here



Our best sellers, picked for the whole list.
15% off todaySAVE15
Illustrative emails. What a Klaviyo email looks like depends on how your team builds it.
03 / Side by side
How do Klaviyo alone and Klaviyo + llea compare, feature by feature?
With llea, Klaviyo keeps sending and your flows stay in place, while llea supplies the intent score, a 1:1 email per shopper and picks in the shopper’s size. Klaviyo alone relies on its own predictions and a beta AI message add-on.
| Feature | Klaviyo + llea | Klaviyo alone | Why this matters |
|---|---|---|---|
| AI personalization per shopper | llea writes one email per shopper, and Klaviyo sends that exact email. | Personalization add-on: AI writes a unique message for every customer in a flow (in beta). | An email written for one shopper gives that shopper a reason to read it. One campaign to the whole list has to speak to everyone. |
| Purchase intent scoring | llea gives every shopper an intent score and a segment, built from 100+ signals. | Predicted lifetime value, expected next order date and churn risk, once a profile has enough purchase history. | Knowing who is ready to buy tells you who to email today and who to leave alone, so your list hears from you when it counts. |
| Live stock and size-aware product picks | llea picks products that are in stock in the shopper’s size at the moment the email sends. | Recommendations skip items your catalog marks as out of stock. We found no size filter in Klaviyo’s docs. | A click is wasted when the shopper’s size is gone. Picks checked at send time keep the email pointing at something they can buy. |
| Send time per shopper | llea sends each email at the shopper’s usual shopping hour and stops the series when the shopper buys. | Personalized Send Time finds a sending window for each person. | An email that lands when a shopper usually shops arrives while they are ready to buy, and stopping at the order means no selling them what they just bought. |
| Shopify integration | llea installs from the Shopify App Store and dispatches each email to Klaviyo through Shopify Flow. | A Shopify app syncs profiles and orders, and tracks onsite activity such as viewed products. | Orders, stock and browsing are what make an email personal. The closer the tool sits to your store data, the more each email can use. |
| Setup and migration effort | No migration. Klaviyo stays. Sending through Klaviyo is on llea’s Growth plan, and setup is one Shopify Flow workflow and one Klaviyo flow. | Already in place if your store runs Klaviyo today. | The less you have to rebuild, the sooner better emails reach your shoppers. |
| Pricing model | Your Klaviyo plan, plus llea Growth: $299/mo + 2% of the sales llea brings in, capped at $3,000 a month. 30-day free trial billed through Shopify. | Based on active profiles and emails sent. Free up to 250 active profiles and 500 emails a month. Personalization is a paid add-on. | Compare the whole bill against the revenue it earns, not only the starting price. |
Klaviyo sources, checked
- Klaviyo: Personalization
- Klaviyo: Predictive analytics
- Klaviyo help: Product feeds
- Klaviyo: AI features, March 2026
- Klaviyo help: Shopify
- Klaviyo help: Billing
Prices and features change, so check each vendor’s page before you decide.
04 / Pricing
What does llea cost on top of Klaviyo?
You keep your Klaviyo plan and add llea. Sending through Klaviyo is on llea’s Growth plan: $299 a month plus 2% of the sales llea brings in, capped at $3,000 a month, with a 30-day free trial.
$0a month
Reach up to 100 high-intent shoppers a month
$14a month
+ 5% of the sales llea brings in, capped at $500 a month
Reach up to 1,000 high-intent shoppers a month
$99a month
+ 3% of the sales llea brings in, capped at $1,000 a month
Reach up to 5,000 high-intent shoppers a month
$299a month
+ 2% of the sales llea brings in, capped at $3,000 a month
Reach up to 20,000 high-intent shoppers a month
05 / Results
Does one email per shopper earn more?
On one store, yes: 8× the revenue per email. These five rounds set that store’s usual emails against llea’s, sent to the same list over the same period.
Revenue per email
Revenue per recipient: $0.10 store-wide against $0.80 for llea sends, 8 times higher.
Clicks that became orders
Clicks that became orders: 19.04% store-wide against 54.7% for llea sends, 2.9 times higher.
Repeat opens
Repeat opens: 20.7% store-wide against 50.4% for llea sends, 2.4 times higher.
Purchase pace
Purchase pace: 1.0 times usual store-wide against 1.9 times for llea sends, so customers bought sooner.
Emails for the same revenuefewer wins
llea earned the same revenue from 12,683 emails that the store’s own send rate would have needed 101,778 emails to earn. That is eight times fewer sends, and 89,095 fewer emails that could have drawn a spam complaint or an unsubscribe.
Measured on one store’s live Shopify sends, against that store’s own email baseline over the same period. Results vary. This is not a test against Klaviyo.
06 / Your move
What does adding llea to Klaviyo look like?
No migration. Your Klaviyo flows stay as they are, and llea connects through one Shopify Flow workflow and one Klaviyo flow.
Install and sync
Install llea on Shopify and sync your store.
Turn on tracking
Turn on visitor tracking in your theme.
Check your brand
Check the brand look and voice llea pulled from your store.
Connect Klaviyo
Send a test from llea, then build the one Klaviyo flow that sends llea’s emails.
07 / FAQ
What do Shopify brands ask about llea and Klaviyo?
Yes. llea connects natively to Klaviyo and routes every send through Shopify Flow, so the Klaviyo flows you already run stay as they are. No migration is needed.
Yes. Klaviyo does the sending and llea is the intelligence behind it. llea writes each email and Shopify Flow passes it to Klaviyo as a tracked event. Klaviyo sends that exact email and reports received, opened and clicked back to llea.
Your flows stay in Klaviyo, and Klaviyo does the sending. Klaviyo’s own tools keep working too: predictions for lifetime value, next order date and churn risk, Personalized Send Time, and product recommendations.
No. Klaviyo + llea costs your Klaviyo plan plus llea’s Growth plan, which is the plan that sends through Klaviyo: $299 a month plus 2% of the sales llea brings in, capped at $3,000 a month. Your first paid plan starts with a 30-day free trial billed through Shopify.
llea has four plans sized by the high-intent shoppers reached each month. Free is $0 for up to 100. Starter is $14 a month plus 5% of the sales llea brings in, capped at $500 a month, for up to 1,000. Plus is $99 a month plus 3%, capped at $1,000, for up to 5,000. Growth is $299 a month plus 2%, capped at $3,000, for up to 20,000.
Yes. Your first paid plan starts with a 30-day free trial billed through Shopify. You won’t be charged during the trial and you can cancel anytime. The Free plan has no monthly fee.
Each llea email starts from 100+ signals about that shopper: what the shopper browses and buys, where and when the shopper shops, and who the shopper is. llea also knows your products and stock, so llea picks real items that are in stock in the shopper’s size and adds an offer only when the shopper needs one.
Yes. llea pulls your logo, colours and tone from your store. You pick a voice (Warm, Enthusiastic, Professional, Playful or Minimal) and every line follows it. You check the look and voice before anything is sent.
Klaviyo alone may fit a budget with no room for a second plan, because sending through Klaviyo needs llea’s Growth plan at $299 a month plus 2% of the sales llea brings in, on top of the Klaviyo bill.
Yes. llea is GDPR and CCPA compliant, and data is hosted on Supabase (SOC 2 Type II certified).
08 / Keep comparing
How does llea compare with other tools?
09 / Your turn
Shoppers open the email that feels written for them.
Ready to put a brain behind Klaviyo?
Bring AI-powered personalization and purchase intent into your Shopify email marketing.