Klaviyo vs Semrush — Pricing, Plans, and Verified Costs (2026)
Klaviyo starts at $20/mo. Semrush starts at $139.95/mo. Klaviyo is $119.94999999999999/mo cheaper on the entry tier than Semrush.
How pricing works
These two tools don't price the same way, so the headline numbers below aren't directly comparable until you plug in your own volume.
- Klaviyo (Per Usage) — Klaviyo bills on usage — Contacts on top of a paid plan starting at $20/mo. The plan includes an allowance; anything beyond it is metered.
- Semrush (Flat Rate) — Semrush bills on a fixed plan from $139.95/mo, so the listed price is what you pay regardless of volume.
Per-minute, per-credit and per-token rates exclude any downstream model, speech or telephony costs unless the vendor states otherwise.
Marketing automation built specifically for e-commerce, publicly traded (KVYO), ~$10B market cap. Positioned as the alternative to Mailchimp for e-commerce brands that need behavioral segmentation and revenue attribution. Distinctive for tight Shopify integration and its "attributed revenue" reporting that lets marketers show ROI cleanly. Priced per subscribed profile starting free; scales aggressively past 10K contacts. Real cost bloat comes from SMS add-on and abandoned-cart flows.
Enterprise SEO + digital marketing platform, acquired by Adobe for $1.9B in cash (deal closed April 28, 2026) and now part of Adobe's Customer Experience (CX) Enterprise. Formerly publicly traded (SEMR) before the take-private. Positioned as the alternative to Ahrefs for teams that want a broader marketing suite (social media, PPC intelligence, content marketing, and now Generative Engine Optimization / AI Search) beyond pure SEO. Distinctive as the marketing generalist tool (Ahrefs is SEO-specialist), and increasingly as the Adobe-blessed answer to brand visibility across ChatGPT/Perplexity/AI Overviews. Priced $139-$549/mo across four main tiers plus custom Enterprise. Real cost bloat: user seats + Local + Trends + Content Marketplace still charge extra even after Adobe.
All plans compared
| Tier role | Plan | Klaviyo monthly | Klaviyo annual | Semrush monthly | Semrush annual |
|---|---|---|---|---|---|
| Free / starter | Free / — | Free | Free | — | — |
| Entry paid | Email / SEO | $20 | — | $139 | $117.33 |
| Mid tier 1 | — / Starter (SEO + AI Search) | — | — | $199 | $165.17 |
| Mid tier 2 | — / Pro+ (SEO + AI Search) | — | — | $299 | $248.17 |
| Pro / power | Email + SMS / Advanced (SEO + AI Search) | $35 | — | $549 | $455.67 |
| Enterprise | — / Enterprise | — | — | Custom | Custom |
Tier names differ across vendors. Rows are aligned by tier role, not name. Full tier structures on each tool's page.
What each is best for
Klaviyo is worth it if… e-commerce brands (Shopify, WooCommerce, Magento) that need product-triggered email + SMS flows — abandoned cart, browse abandonment, post-purchase, winback — with revenue attribution baked in. Free covers up to 250 subscribers; paid tiers scale by subscriber count with email + SMS bundled or separate.
Semrush is worth it if… marketing agencies and in-house SEO teams (5-100 people) that need the full SEO/PPC/content/AI Search stack — keyword research + rank tracking + backlink audit + site audit + content optimization + local SEO + AI visibility (ChatGPT/Perplexity/AI Overview citations). SEO covers small teams doing traditional search; Starter adds AI Search monitoring; Pro+ scales for growing agencies across multiple sites; Advanced adds API + deeper AI visibility for larger orgs.
Bottom line: Choose based on how you want to pay — Klaviyo is per usage, Semrush is flat rate.
Choose Klaviyo over Semrush if…
Choose Klaviyo if…
- You want to pay only for actual usage (per usage, from $20/mo).
- You match the profile Klaviyo is built for: e-commerce brands (Shopify, WooCommerce, Magento) that need product-triggered email + SMS flows — abandoned cart, browse abandonment, post-purchase, winback — with revenue attribution baked in.
- You need a general-purpose marketing & email option rather than a vertical-specific one.
Choose Semrush if…
- You want fixed-price predictability (flat rate, from $139.95/mo).
- You match the profile Semrush is built for: marketing agencies and in-house SEO teams (5-100 people) that need the full SEO/PPC/content/AI Search stack — keyword research + rank tracking + backlink audit + site audit + content optimization + local SEO + AI visibility (ChatGPT/Perplexity/AI Overview citations).
- You need a general-purpose marketing & email option rather than a vertical-specific one.
At a glance
| Klaviyo | Semrush | |
|---|---|---|
| Free plan | Yes | No |
| Entry price | $20/mo | $139.95/mo |
| Enterprise available | Yes | Yes |
| Pricing model | Per Usage | Flat Rate |
| Verification | Checked October 3, 2026 | Checked October 4, 2026 |
| Full pricing | View full pricing | View full pricing |
Pricing last verified October 4, 2026. Tracked daily.