Flowium Review: A Deep Dive into Their Email & SMS Marketing Services

Introduction

Flowium is a results-driven email marketing and SMS agency specializing in eCommerce brands. Their mission is to fuel business growth through expertly crafted email campaigns, automation strategies, and segmentation. With a dedicated team of six specialists—including copywriters, designers, strategists, and project managers—Flowium offers a full-service approach to email marketing.

Key features include:
✅ Custom email design & copywriting
✅ Advanced segmentation & A/B testing
✅ Klaviyo account setup & optimization
✅ Weekly strategy calls & monthly reporting
✅ SMS marketing integration

Pros & Cons: What Customers Say

Strengths of Flowium

1. Exceptional Team Collaboration

Customers consistently praise Flowium’s team-based approach, where multiple specialists handle different aspects of email marketing. One reviewer noted:

"Instead of relying on just one person, we benefit from a dedicated team that includes a designer, copywriter, project manager, and technicians."

Another client highlighted:

"Adrian (our strategist) and Jen (project manager) were outstanding. They listened, refined our strategy, and delivered beyond expectations."

2. Measurable Revenue Growth

Several brands reported significant revenue increases after partnering with Flowium:

• 55% of total business revenue attributed to email (+42% YoY)
• $300K–$400K monthly sales from email marketing (25–30% of total revenue)
• 1,000% increase in Klaviyo-attributed revenue (from $13K to $133K)

One client shared:

"Our email revenue exploded since bringing them on. Their flows now account for 15% of our revenue, up from 5%."

3. Strong Project Management & Communication

Flowium maintains structured workflows with weekly Zoom calls, Slack updates, and Miro dashboards. Clients appreciate their responsiveness:

"They’re always on time—or ahead—with deliverables. If there’s a delay, they communicate proactively."

Another added:

"Robyn (our PM) is amazing. Meetings are recorded, agendas are clear, and nothing falls through the cracks."

4. Strategic, Data-Driven Approach

Flowium doesn’t just execute—they optimize. Clients highlighted:

• A/B testing that boosted engagement despite fewer emails sent
• Advanced segmentation improving open rates by 11%
• Retroactive campaign adjustments (though some wished this was more consistent)

Areas for Improvement

1. Retroactive Updates Could Be Stronger

A few clients noted that Flowium doesn’t always update past campaigns with new designs or strategies:

"If we design a new email footer, they apply it to new content but not old emails. We’d pay extra for this service!"

2. Account Representative Turnover

Some brands experienced changes in their main contacts:

"We’ve had a few account managers over the years. Once they’re up to speed, it’s smooth—but onboarding new reps takes time."

3. Minor Early Campaign Errors

One client mentioned initial mistakes but praised quick fixes:

"There were a few errors in our first campaigns, but Flowium owned them and improved processes afterward."

Final Verdict: Is Flowium Worth It?

Who Should Hire Flowium?

✔ eCommerce brands needing a hands-off, expert-led email/SMS strategy
✔ Businesses wanting measurable revenue growth (most clients see 25–50%+ increases)
✔ Teams lacking in-house design/copywriting resources

Who Might Look Elsewhere?

✖ Startups on tight budgets (Flowium’s full-service model isn’t cheap)
✖ Brands wanting retroactive campaign updates (this isn’t standard)

The Bottom Line

Flowium delivers elite-level email marketing, combining strategic expertise, flawless execution, and transparency. While minor hiccups occur (like rep turnover), their results speak louder—clients routinely see 6-figure revenue boosts and improved customer engagement.

Rating: 4.8/5 ★★★★★
"They’re the gold standard for eCommerce email marketing."