Most Shopify stores are running their welcome flows blind.
Not blind as in “no data.” Blind as in “can't see how the person shops.” Your Klaviyo account knows when someone opens an email. It doesn't know they spent 12 minutes reading your buying guides before subscribing. That's the signal that tells you what kind of shopper just joined your list, and you're not capturing it.
The welcome flow that treats everyone the same is leaving serious money on the table.
Flow branches derive 41% of email revenue from 5.3% of sends. That's from Klaviyo's own data. The flows that perform best don't blast everyone with the same message. They branch. They treat a researcher differently from an impulse buyer.
But most Klaviyo flows can't branch on shopping intent because Klaviyo can't see it. So your welcome flow guesses. It sends the same discount to everyone and hopes for the best. Some researchers convert anyway. Some impulse buyers use the discount they didn't need. The flow works well enough that you don't question it.
But “well enough” has a price tag. For most stores doing $50k/month or more, that price tag is in the thousands per month. Every single month. In discounts you didn't need to give. In researchers who needed proof and got a coupon instead.
Behavioral signal Klaviyo can't capture. Readable rules you approve.
Personably is a Shopify app that watches how each shopper browses your store, before they subscribe, before they buy, before Klaviyo even knows they exist, and pushes their shopping intent into Klaviyo as a profile property. Your welcome flow branches on it. Automatically.
Not a replacement
Kl vice stays your sender. Your account, templates, data. Personably adds signal; it doesn't hold your flows hostage.
Not a black box
Every intent rule is readable. "Three guide pages with no cart" means researcher. You can read, inspect, and approve every rule.
Not another dashboard
You don't interpret and act. Personably classifies and pushes the signal into Klaviyo. Your flows branch. You don't manually segment.
How it works, in three steps.
Listen
A lightweight, consent-aware pixel runs in Shopify's sandboxed Web Pixel environment, isolated from your theme. It watches pages viewed, categories browsed, products compared, and cart actions. No personal data. No identity tracking. Just behavioral signal.
Recognize
Transparent rules classify intent. Three guide pages and no cart? Researcher. Straight to cart in one session? Impulse buyer. You can read every rule, adjust thresholds, and approve changes before anything goes live.
Welcome properly
The classified intent lands in Klaviyo as a profile property. Your welcome flow already has branches; now they have a real behavioral signal to branch on. What each branch sends is entirely up to you: proof before any offer for a researcher, a nudge with no discount for a ready buyer, or whatever fits your store. Personably classifies the shopper; you design the welcome.
What changes the day you turn it on.
Discounts you stop giving away
When someone was going to buy anyway, you stop handing them a 10% off coupon they didn't need. Personably flags the ready buyer so your flow can hold the discount and send a lighter nudge, or nothing at all. The choice stays yours, and the buyer converts at full price.
Researchers who get what they actually need
The careful shopper who spent time in your buying guides isn't ignoring you. They're stuck. They need confidence, not a coupon. Education and comparison proof before the offer feels like you actually paid attention.
A welcome flow that compounds
Every shopper who passes through makes the classification smarter. Which signals correlate with conversion? Which with unsubscribes? The rules tighten over time. Your welcome flow gets better the longer it runs.
Don't trust a prettier flow. Trust the holdout.
Most personalization tools show you green arrows and call it a day. No control group. No baseline. No way to separate signal from luck.
Personably is built differently. Every store gets a holdout group, a small slice of subscribers kept on the old welcome path. The personalized branch is measured against that holdout. If it outperforms, you see the real lift, clean of seasonality and variance. If it doesn't, you see that too. No cherry-picked metrics.
Control
$1.00
Baseline per recipient
Personalized
$1.18
Measured against holdout
What Pro includes, beyond the welcome flow.
The Growth plan ($199/mo) covers welcome flow personalization. Pro ($299/mo) adds the flows that matter after the welcome:
Post-purchase flow personalization
The purchase itself is a behavioral signal. What they bought, what they browsed but didn't buy, what category they came from. Personably Pro uses that signal to personalize the thank-you email, the product care guide, and the cross-sell, each adapting to how the customer actually shopped.
Lifecycle flows
Win-back flows that know whether a lapsed customer was a researcher or an impulse buyer. Replenishment flows that use product-specific timing instead of a global 'buy again in 30 days' guess. Browse abandonment flows that reference the actual products and categories the shopper viewed.
Priority setup and support
We onboard you directly. Install the app, connect Klaviyo, and we'll help you approve the starting rules. Most stores complete setup in an afternoon. Your current welcome flow keeps running until you choose to switch the personalized one on.
Who it's for.
For
- Shopify stores already using Klaviyo with a welcome flow running
- Store owners who can see researchers and impulse buyers need different messages
- Teams that want more revenue without adding channels or learning new tools
- People who care about consent, margin, and readable rules over black-box AI
Not for
- Stores not on Shopify
- Stores not using Klaviyo yet
- Stores under ~$50k/year where the math doesn't pencil out
- People who want AI to handle everything with no visibility
Pricing.
Growth
$199/mo
Welcome flow personalization. Intent classification. Consent-aware pixel. Readable rules.
Pro
$299/mo
Everything in Growth plus post-purchase flows, lifecycle flows, and priority support.
Scale
$499+/mo
High-volume stores. Custom flow support. Purchase-graph intelligence. Premium support.
No migration. No agency handoff. No long-term contract. Install from the Shopify App Store, connect Klaviyo with OAuth, approve the starting rules. Cancel anytime and Klaviyo keeps working exactly as before.
FAQ.
Does this replace Klaviyo?
No, and it never will. You keep the Klaviyo account, templates, and flows you already run. Personably adds the behavioral signal and branching logic Klaviyo does not capture on its own. If you cancel, your Klaviyo keeps working exactly as before.
Will the pixel slow my store down?
No. It runs in Shopify's sandboxed Web Pixel environment, isolated from your theme code, and sends a handful of tiny events in the background. Your pages load exactly as they do today.
Is this a black box?
No black box. Intent classification uses plain, readable rules. "Three or more guide or category pages viewed with no cart activity" means researcher. You can read every rule, and nothing changes in your account without your approval.
What does setup involve?
At launch, we will onboard you directly: install the app, connect Klaviyo, and approve the starting rules. Most stores can complete setup in an afternoon. Your current welcome flow keeps running until you choose to switch the personalized one on.
See what your welcome flow is leaving on the table.
Drop your store URL and we'll send you a free diagnostic: your Welcome Flow Health Score, a conservative revenue estimate with every assumption in the open, and the three things Personably would change first.
No credit card. No commitment. Diagnostic delivered within 24 hours.