A/B testing intelligence for Klaviyo

How many of your A/B test "winners" were real?

Apple opens your emails by machine. Bots click your links. Klaviyo declares winners anyway. SplitDial rebuilds every test from raw events and tells you which results are real — before you roll the wrong one out.

Read-only API key2-minute setupNever changes your account
SplitDial — the same test, before and after cleaning
What Klaviyo reports
41.8%
44.6%
Variation A
Variation B
False winner
Real opens only
24.9%
22.1%
Variation A
Actual winner
Variation B
Illustrative test. Apple's Mail Privacy Protection opens emails automatically — count those opens and the wrong variation wins.
12 mo
of past tests re-checked, free
11
ways to judge every test
100%
of results traceable to raw events
2 min
read-only setup, no IT ticket

Your whole program, one command center

Campaigns and flows together — win rate, resolution rate, and the revenue your winners actually measured.

SplitDial — A/B tests
23%
win rate
53%
reached a clear answer
$18,400
measured winner revenue
Winners · 11Lost · 6No difference · 8Not enough data · 19Invalid · 3
Spring subject testWinner Open ↗
Welcome flow A/BNot enough data Open ↗
Discount depth testLost Open ↗
Filter by result, download the CSV, hand your boss the report — every row links back to Klaviyo. Illustrative account.

Flow A/B tests, finally measured

Klaviyo shows flow tests as two message stats and leaves the verdict to you. SplitDial tracks every subscriber down their split path — who got which version, who opened, who bought — and calls the winner with real statistics.

⚡ Welcome flow · A/B split
Path A · 50%
1,624 recipients
$1.12 / recipient
Path B · 50% ✓ Winner
1,598 recipients
$1.58 / recipient
Illustrative numbers.
The shaded band is the likely range — it narrows as data accumulates. Illustrative.

Watch certainty form — don't guess at it

Every result carries its likely range, drawn so anyone can read it: a band crossing zero means "could go either way," a band clear of zero means you have a real winner. No p-value literacy required.

Pick your own winner metric — flows included

Klaviyo judges flow tests on opens and clicks, full stop. SplitDial scores any test — flow or campaign — on the metric you actually care about: revenue per recipient, order rate, margin, unsubscribes, and more.

Open rate lift+0.4%
Click rate lift+1.1%
Revenue per recipient lift+18%
The same flow test, three metrics — illustrative numbers.
traffic to Klaviyo's early picktraffic left for the other variationthe moment your test stops being readable
SplitDial flags this on day one, with the one-click fix — illustrative chart.

Catch Klaviyo before it corrupts a test

Flow A/B tests end themselves: Klaviyo's automatic winner selection shifts traffic mid-test, quietly invalidating your results. SplitDial warns you the day it syncs and turns it off in one click — nothing else in the flow changes.

Free: your last 12 months, audited

Every test you've already run, re-checked with clean data. Most accounts find decisions worth revisiting.

SplitDial — 12-month audit
47
tests audited
9
winners decided by Apple auto-opens
21
too small to ever conclude
6
real wins worth rolling out
"Spring subject test" — won on raw opens, loses once Apple's auto-opens are removedFalse winner
Illustrative account. Your audit runs on your real tests, free.

Get the free audit

What your reports don't tell you

Klaviyo runs the tests. SplitDial tells you which results to believe.

Klaviyo reportsSplitDial
A/B winners decided without Apple auto-opens
Bot clicks removed before results
Winners on revenue per recipient and margin
Flow A/B tests with full statistical results
Sample-size check before a test sends
Warning before auto-winner ends a flow test early
A likely range shown on every number
Your past 12 months of tests re-checked
Read-only by defaultKeys encrypted at restIsolated workspacesNo changes without your click

What did your last 12 months of tests really say?

The free audit re-checks every test you've run — and names the winners that weren't.