Omnisend competes with Klaviyo on the same playing field (Shopify ecommerce email + SMS) but with different positioning: cheaper at every contact tier, lighter feature depth, faster onboarding for non-specialists. Four months of side-by-side testing against Klaviyo confirms the trade-off is real. Omnisend is the right pick for Shopify brands under 25K contacts who want serious email automation without Klaviyo's premium pricing. At 50K+ contacts or with 15+ active segments, Klaviyo's depth starts to earn its 35-40% price premium.
Best for: Shopify brands under 25K contacts, SMB ecommerce operators on tight budgets, brands running 1-10 standard automation flows.
Not for: Brands running 15+ active segments, anyone needing per-email revenue attribution as a daily workflow, pure Amazon FBA sellers (Amazon prohibits external email marketing).
Price: Free up to 250 contacts · $16/mo at 500 · $59/mo at 6K · $135/mo at 15K · SMS included on Pro tier.
Omnisend's pricing is the cleanest in the ecommerce email category. The Standard plan covers email-only with no metered send caps; Pro adds SMS, advanced flows, and customer success support. Contact-count tiers are linear and predictable. Klaviyo's tier structure is more complex (separate email and SMS billing, attribution windows, etc.) and harder to forecast at scale.
Comparable to Klaviyo's depth in 2026. Real-time sync of catalog data, order history, browse behavior, and abandoned cart events. Native blocks for product recommendations and dynamic content render with live Shopify data. The integration was rewritten in 2024 and closed most of the gap that previously existed versus Klaviyo.
Omnisend's onboarding flow gets a Shopify brand from signup to first sent campaign in roughly 30 minutes. Klaviyo's onboarding typically takes 60-90 minutes given the depth of options. For SMB operators who do not have an in-house email specialist, this onboarding gap matters.
Pro plan ($59+/month) includes SMS credits in the base price — no separate SMS billing. Klaviyo bills SMS separately at $15/month minimum plus per-message costs. For brands running both email and SMS, Omnisend Pro's unified pricing is meaningfully simpler and slightly cheaper at most contact tiers.
Omnisend handles 2-3-dimensional segments well (e.g., "purchased in last 30 days AND opened welcome email"). Klaviyo handles 5+-dimensional segments natively (e.g., "purchased category X in last 60 days AND opened welcome AND has not purchased category Y AND browse engagement above threshold"). For brands running 15+ active segments, the depth gap is operationally real.
Omnisend tracks campaign-level revenue attribution but lacks the per-email-send attribution detail Klaviyo provides. Brands that optimize campaigns based on attributed revenue per send (not just clicks) feel this gap immediately. Brands optimizing on open rate + click rate do not.
Both support email + SMS in unified flows. Klaviyo's SMS implementation is more mature with broader carrier integrations and better deliverability tools. For SMS-heavy brands (50%+ of revenue from SMS), Klaviyo wins. For email-primary brands using SMS as a supplement, Omnisend is sufficient.
Above 50K contacts, Klaviyo's enterprise feature set (custom integrations, dedicated success management, SOC 2 reporting) matures faster. Omnisend serves the SMB-to-mid-market range well; brands crossing into enterprise typically migrate to Klaviyo.
| Contact count | Standard (email only) | Pro (email + SMS + advanced) |
|---|---|---|
| 0-250 | Free | $59/mo (3,933 SMS credits) |
| 500 | $16/mo | $59/mo |
| 1,000 | $25/mo | $59/mo |
| 3,000 | $45/mo | $80/mo |
| 6,000 | $59/mo | $130/mo |
| 15,000 | $135/mo | $235/mo |
| 25,000 | $235/mo | $345/mo |
| 50,000 | $430/mo | $650/mo |
All paid plans include unlimited email sends (Klaviyo's tier structure historically metered sends; current plans are unlimited). Pro tier's bundled SMS credits compound the cost advantage for brands running both channels.
For the full feature head-to-head see our Klaviyo vs Omnisend comparison. Quick summary:
If you run a Shopify brand with under 25K contacts and want serious email automation without Klaviyo's premium, yes. Omnisend Standard at $59/month at 6K contacts is the right tier for most growing SMB Shopify brands. Pro at $130/month for the same contact count unlocks SMS in unified billing — meaningfully simpler than Klaviyo's separate SMS line item.
If you are under 1,000 contacts, start on the free plan. The 250-contact / 500-send free tier covers the first 90-180 days of most new Shopify brands.
If you are crossing 50K contacts, evaluate every renewal. Klaviyo's depth advantage compounds at scale; the price-per-contact gap also widens but the operational lift Klaviyo provides may justify it.
If you operate Amazon-only without a DTC site, skip Omnisend entirely. Use Amazon's built-in Brand Tailored Promotions instead.