FlowCandy vs Underground Ecom
Short answer: FlowCandy is best for established 7-figure brands, or teams that want coaching to run Klaviyo in-house. Underground Ecom is best for fast-growth and enterprise DTC brands that want full CRM strategy from a large team. FlowCandy publishes its prices; Underground Ecom does not, so you need a call to compare.
We run Huge Win Media, a third option on this page, so we are biased. Facts about FlowCandy and Underground Ecom come only from their own websites and their Clutch profiles.
At a glance
| Compared on | FlowCandy | Underground Ecom |
|---|---|---|
| What they do | Klaviyo email and SMS agency for established ecommerce brands, plus a paid coaching community. | End-to-end email, SMS, and retention services from a large award-winning team, focused on fast-growth DTC. |
| Founded | Not stated | Not stated |
| Based in | Not stated | Not stated (describes itself as one of the largest EMEA Klaviyo partners) |
| Team | Not stated | 120+ retention marketers |
| Klaviyo partner tier | Not stated | One of the largest EMEA Klaviyo partners (its own description) |
| Channels | Email and SMS on Klaviyo | Email, SMS, WhatsApp, and owned channels, plus CRM strategy |
| Pricing | Monthly Management from $5,995/mo. Accelerator from $8,500/mo. FlowCandy Insiders coaching $395/mo | Not published |
| Minimum | Established brands over 7 figures in annual revenue | Not published |
| Guarantee | 30-day money-back guarantee | Not stated |
| Track record | 500+ brands | 150+ global clients, $165M in trackable sales claimed |
| Notable clients | Kachava, Momofuku, AeroPress, Duke Cannon, NZXT, Nutrabolt | AG1, Osprey, VED, Surreal, Frive |
| Clutch | 4.8/5 from 10 reviews, min project $10,000+ | No Clutch profile found |
How they work
FlowCandy offers two ways to work. Done-for-you: Monthly Management from $5,995/mo or the Accelerator from $8,500/mo, for established brands over 7 figures. Or coaching: FlowCandy Insiders at $395/mo, where your own team does the work. It offers a 30-day money-back guarantee and takes a $500 onboarding deposit that is refunded on the first payment.
Underground Ecom has 120+ retention marketers and sells a full program: CRM audit and roadmap, retention strategy, creative and execution, automations, and SMS and WhatsApp management. It focuses on fast-growth DTC brands.
Pricing
FlowCandy: Monthly Management from $5,995/mo. Accelerator from $8,500/mo. FlowCandy Insiders coaching $395/mo. Underground Ecom: Not published.
FlowCandy publishes its prices; Underground Ecom does not, so you need a call to compare. Prices change, so confirm on a call before you decide.
Klaviyo partner tier and channels
FlowCandy does not state its Klaviyo partner tier. Underground Ecom lists its Klaviyo status as One of the largest EMEA Klaviyo partners (its own description).
FlowCandy covers email and SMS on Klaviyo. Underground Ecom covers email, SMS, WhatsApp, and owned channels, plus CRM strategy.
What reviewers say
FlowCandy has 4.8/5 from 10 reviews, min project $10,000+ on Clutch. Points reviewers raise most often:
- "design work could be improved"
- "onboarding and template setup can take time"
- "hard to schedule calls for monthly reviews"
- "more clarity on deliverables and cost structure"
Underground Ecom: no Clutch profile found.
Read the full reviews: FlowCandy on Clutch
Who should choose which
Choose FlowCandy if
- You already do over 7 figures a year and want a premium monthly retainer.
- You want to run Klaviyo yourself with coaching ($395/mo Insiders) instead of hiring a done-for-you team.
- You want a 30-day money-back guarantee on a retainer.
Choose Underground Ecom if
- You are a large or fast-scaling brand and want a 100+ person retention team.
- You want CRM audits and strategy, not just email execution.
- You sell mainly in Europe and want an EMEA-focused partner.
A third option: Huge Win Media
Huge Win Media is about a dozen people working only in Klaviyo. Each client keeps the same marketers, writers, and designers every month. Week 1 is a full audit of every flow, campaign, and segment. Week 2 rebuilds the highest-impact flows. Week 3 starts the campaign calendar. After that it runs on weekly syncs, monthly reporting, and a quarterly A/B testing roadmap.
Huge Win Media is best for established brands with no one in-house on email, ready to put $1,000 to $2,000 a month into it. Pricing: From $1,000/mo. Campaigns $100 to $200 per email by format. Flows quoted after a free audit, from $3,500. Lower rate if your team runs strategy or account management. It works only in Klaviyo, is not a Master Elite partner, and has no Clutch profile yet.
| Compared on | FlowCandy | Underground Ecom | Huge Win Media |
|---|---|---|---|
| Best for | Established 7-figure brands, or teams that want coaching to run Klaviyo in-house | Fast-growth and enterprise DTC brands that want full CRM strategy from a large team | Established brands with no one in-house on email, ready to put $1,000 to $2,000 a month into it |
| Pricing | Monthly Management from $5,995/mo. Accelerator from $8,500/mo. FlowCandy Insiders coaching $395/mo | Not published | From $1,000/mo. Campaigns $100 to $200 per email by format. Flows quoted after a free audit, from $3,500. Lower rate if your team runs strategy or account management |
| Minimum | Established brands over 7 figures in annual revenue | Not published | No minimum term on monthly plans. One-off flow builds have no ongoing commitment |
| Klaviyo tier | Not stated | One of the largest EMEA Klaviyo partners (its own description) | Klaviyo Partner (not Master Elite) |
| Clutch | 4.8/5 from 10 reviews, min project $10,000+ | No Clutch profile found | No Clutch profile yet |
More comparisons
- Huge Win Media vs FlowCandy
- Huge Win Media vs Underground Ecom
- FlowCandy alternatives
- Underground Ecom alternatives
Questions
Is FlowCandy better than Underground Ecom?
Neither is better for everyone. FlowCandy is best for established 7-figure brands, or teams that want coaching to run Klaviyo in-house. Underground Ecom is best for fast-growth and enterprise DTC brands that want full CRM strategy from a large team.
Which is cheaper, FlowCandy or Underground Ecom?
FlowCandy publishes its prices; Underground Ecom does not, so you need a call to compare. FlowCandy: Monthly Management from $5,995/mo. Accelerator from $8,500/mo. FlowCandy Insiders coaching $395/mo. Underground Ecom: Not published. Checked October 2026.
Is there an alternative to FlowCandy and Underground Ecom?
Yes. Huge Win Media is best for established brands with no one in-house on email, ready to put $1,000 to $2,000 a month into it, with monthly plans from $1,000 and flow builds from $3,500. It works only in Klaviyo and is not a Master Elite partner.
More agency comparisons and buying guides
Sources and how this page was checked
Facts about other agencies come only from their own websites, checked October 2026. Where an agency does not publish a price or number, we say so instead of guessing. Spot something out of date? Email emma@hugewinmedia.com and we will fix it.
Sources: flowcandy.com homepage · FlowCandy services and pricing · undergroundecom.com homepage · Huge Win Media pricing · About Huge Win Media · Case studies