The simple rule
- Service businesses, professional services, B2B: Mailchimp wins on price and simplicity.
- E-commerce, transactional, product-driven: Klaviyo wins on segmentation and revenue attribution.
That is the rule. The rest of this page explains why.
Mailchimp strengths
- Cheap at small list sizes ($13-$30/month for under 2,500 contacts)
- Familiar interface for non-marketers
- Decent automation builder for time-based nurture sequences
- Solid landing page builder if you do not have a separate web team
Mailchimp weaknesses
- Segmentation is shallow compared to Klaviyo
- Revenue attribution requires manual setup
- Customer Journeys can break silently and not tell you
- Pricing scales aggressively after 10K contacts
Klaviyo strengths
- Best-in-class e-commerce integrations (Shopify, WooCommerce, BigCommerce)
- Deep segmentation on purchase behavior
- Revenue per email is a built-in metric
- Flows are battle-tested for cart abandonment, browse abandonment, post-purchase
Klaviyo weaknesses
- Overkill for service businesses with no purchase data
- More expensive at every list size
- Steeper learning curve for non-marketers
Where BayouEdge fits
We set up and run either one. For most Houston small businesses we serve (service-based), Mailchimp is the default. For the Houston e-commerce clients we work with, Klaviyo is the default. We do not have a horse in the race.
What to do next
Call James at 832-338-2926. Tell us what you sell and we will name the right platform in one call.
Frequently asked questions
What if I already have one and want to switch?
Migration takes 2-3 weeks. We export the list, rebuild the core flows in the new platform, run both in parallel for a week, then cut over. Cost: $1,500-$5,000 one-time.
Are there other platforms worth considering?
ConvertKit for course creators. ActiveCampaign for B2B with complex automation. Customer.io for product-led SaaS. HubSpot if you also need CRM. We work with all of them.
How much does email cost to run monthly?
Platform fees: $13-$300/month depending on platform and list size. BayouEdge email engagement: $1,000-$3,000/month on top.
Can I just use my current platform?
Usually yes. We only recommend switching if the platform is genuinely failing or pricing has gotten out of hand. Most of the time the platform is fine; the problem is the program.