Case Studies

Maximizing LTV: How True Classic proved a 5.44x ROI in just 7 days with a real test group

With help from Flowium and Opensend, True Classic captured 31,134+ new subscribers and drove $21K+ in email revenue, all validated through a holdout test.

The challenge

True Classic had built a wildly successful men’s apparel brand. But beneath the rapid growth was a quiet leak: tens of thousands of high-intent visitors were bouncing: unidentified, unengaged, and unrecoverable through email.
High-volume traffic wasn't translating into first-party data, limiting remarketing and lifecycle strategies.
Email lists were bloated with disengaged contacts, dragging down deliverability and engagement rates.
Anonymous users left no trail, making it impossible to re-engage or convert them later.

The strategy

Flowium conducted the largest list cleaning in company history, removing over 1 million inactive profiles to restore deliverability. Then, Opensend stepped in to identify and capture contact data from thousands of high-value visitors who otherwise would’ve left without a trace.
Together, the teams rebuilt True Classic’s core flows, focusing on high-performing automations and post-visit emails that reached users traditional sign-up forms had missed.

How Opensend played a role

Opensend integrated directly into True Classic’s Klaviyo setup, giving Flowium instant access to high-value identity data and behavior signals.
With fresh, accurate targeting, Flowium rebuilt 100+ broken or underperforming automations into a lean, revenue-driving machine, fueling welcome, abandonment, and promotional flows with cleaner lists and smarter triggers.

Real testing. Real ROI. Real fast.

True Classic didn’t just guess. They ran a clean test: a 95/5 split between live and holdout groups to isolate Opensend’s impact.
In the first 7 days alone:

$21.8K

new revenue

46%

more revenue from email

5x ROI

based on test vs. control group

391K

new subscribers added in one month

65%

email open rate, nearly 18% higher

Most brands only market to 5% of their traffic. True Classic chose to fix that.

Opensend and Flowium helped True Classic do what most brands never attempt: validate the impact of identity capture with a scientific test group.
By combining email strategy and identity resolution, they achieved meaningful revenue from the invisible 95% of site visitors.
“We had a ton of traffic hitting the site, but we were struggling to engage with most of these visitors. We partnered with Opensend and Flowium to test out Opensend's Connect service, running a scientific hold-out group experiment - the test group that we engaged with our email flows dramatically outperformed the holdout group, giving us a strong ROI within weeks.”
Andrew Winter
Director of AI at True Classic
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Trusted by 1000+ brands

“We had a ton of traffic hitting the site, but we were struggling to engage with most of these visitors. We partnered with Opensend...”
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21.8K

New revenue

5X ROI

Based on test vs. control group

391K

New subscribers added in one month

65%

Email open rate, nearly 18% higher

Andrew Winter

Director of AI at True Classic
“We have been very impressed with Opensend’s performance, generating over $85K in placed orders in just 30 days. To confirm...”
Read More

73,737

Identities resolved in 30 days

55.49%

Unique open rate

24.53%

Unique click through rate

12X ROI

Average return on investment

Adam Hutton

Senior Manager, Digital Growth, Benchmade
“The leads we’ve gained with Opensend are of much higher quality than those from other platforms, resulting in better engagement and more orders....."
Read More

93,000

Resolved identities

$355k

Revenue generated

64%

Unique open rate

19X ROI

Average return on investment

Kurt Oriol

Founder, Campo Grande
“We took advantage of Opensend's free trial period and immediately began seeing results, The ability to engage customers who are already interacting....."
Read More

55,211

Resolved identities in 30 days

8.86%

Unique click through rate

23.8X ROI

Overall return on investment

John Hylandaria

Director of E-commerce, Melinda Maria
“When I started at Jordan Craig, Opensend was one of the first vendors I contacted. At my previous company, they were a key part of the company's....."
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35%

Higher click rate
than Retention.com

4.3X

Higher revenue per lead than Retention.com

29,268

Leads identified in 14 days

Rob Varon

Director of Marketing, Jordan Craig
“Opensend has transformed our marketing efforts at Auri Nutrition, delivering a high ROI within 45 days and generating additional sales quickly. The....."
Read More

96,988

Resolved identities

4.1X ROI

Average return on investment

45%

Unique open rate

$106,286

Revenue generated

Evan Johansen

Partner, Auri Nutrition
“We tried other platforms similar to Opensend, but nothing compared to what Opensend had done for our business. Within the first 30 days of using.....”
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37,621

Resolved identities in
30 days

48X ROI

Overall return on investment

$114,921

New revenue
generated in 30 days

60.78%

Average open rate

Steve Morales

Head of Growth,Kut from the Kloth
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