Your competitors are guessing. You'll know
Umerang is the only email platform for e-commerce that lets you test every dimension of your email at once — subject line, body copy, individual sections, visuals, send time, and audience segments. Simultaneously. With statistical confidence
Not A/B testing. Multivariate testing. There's a difference — and it's worth thousands of dollars a month to the stores that understand it.
What most platforms call A/B testing is barely worth the name
Here's what Klaviyo's standard A/B testing looks like: you write two subject lines, split your list 50/50, and see which one gets more opens. That's it
Congratulations — you've been optimising 8 words out of an email that contains hundreds. While the rest of your campaign — the hero image, the opening line, the offer framing, the CTA button copy, the send time, the audience it goes to — stays completely untested
That's not optimisation. That's a coin flip with extra steps
A/B testing
Send version A to 50% of your list, Send version B to the other 50%, See which subject line gets more opens, Done.
A/B testing
Test subject lines, opening copy, body sections, visuals, CTAs, send times, and audience segments — simultaneously — and find the combination that drives the most revenue.
Six dimensions. One test. One winner
Every variable that affects whether your email gets opened, read, and clicked — Umerang lets you test all of them, at the same time
Subject Line
Test multiple subject line variations simultaneously — not just A vs B, but A vs B vs C vs D. Length, tone, emoji, urgency, personalisation, curiosity — find the precise formula that makes your audience open
Full Body Copy
Test entirely different email versions — different story, different angle, different voice. Sometimes the offer is right but the narrative is wrong. Umerang finds out which full version converts, not just which word in the subject line
Individual Body Sections
Don't want to test the whole email? Test a specific section. The opening line. The offer paragraph. The CTA copy. Isolate the variable you want to improve without rebuilding the entire campaign
Visuals
The image above the fold is often the single biggest conversion variable in an e-commerce email — and almost no platform lets you test it. Umerang does. Test hero images, product photography styles, lifestyle vs product shots, and even video thumbnails
Send Time
Your audience isn't online at the same time every day — and neither are their buying decisions. Test morning vs lunchtime vs evening. Weekday vs weekend. Find the exact send window that gets the most opens and clicks for your specific list
Audience Segments
The same email can perform very differently across different customer groups. Test whether first-time buyers respond better to social proof messaging while repeat customers respond to exclusivity. Then send each group what works for them — automatically
Why test one thing at a time when you can test everything at once?
Traditional A/B testing has a hidden problem: it's slow. Test subject line this week. Test the image next week. Test the CTA the week after. By the time you've optimised your whole email, the season has changed, your audience has shifted, and you're starting over
Umerang's multivariate testing runs all your variable combinations simultaneously. Subject lines, body sections, visuals, send times, audience segments — tested in a single send. The winning combination is identified fast, with statistical confidence
The result: your campaigns get smarter in days, not months
How it works in practice:
- You define the variants you want to test for each dimension
- Umerang distributes your audience across the combinations automatically
- Results are tracked in real time — opens, clicks, conversions, revenue
- Once statistical significance is reached, Umerang identifies the winning combination
- Send the winner to your full list — or let Umerang do it automatically
- Every future campaign starts from a higher baseline
Built for stores that are serious about email revenue
You"re on Klaviyo and feel like you"re not getting the full picture
You"ve used Klaviyo"s A/B testing and it feels limited. You can test subject lines, but the tool doesn"t tell you what"s actually driving revenue differences. Umerang gives you the full picture — and costs significantly less
You"re a lean team and can"t afford to test one thing at a time
Multivariate testing isn"t just more powerful — it"s faster. You get more signal from every send. A team of one or two can run testing programs that used to require a dedicated CRO team
You know email is your best channel but your results have plateaued
Open rates are fine. Click rates are okay. But revenue from email hasn"t moved in months. That"s what untested copy looks like. Umerang shows you exactly what to change — and by how much
What happens when you stop guessing
"We'd been sending the same style of email for two years. In our first Umerang multivariate test, we found out our hero image had been costing us 18% of our conversions. That one test paid for the platform ten times over."
"The A/B testing alone changed how we approach every single campaign."
"Setup took 20 minutes. The first automated flow paid for itself in a week."
