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Klaviyo vs Omnisend vs Mailchimp (2026): cost at 1k to 25k subscribers compared
Last verified against official pricing pages · published 2 Nov 2026
Prices change often. Each price was checked on the platform's official pricing page on the date shown; plans, promos and taxes vary. Confirm on the official site before you buy. Not financial advice.
Short answer: Omnisend is cheapest at 1,000 subscribers; Mailchimp is cheapest at 5,000, 10,000 and 25,000 subscribers for a basic newsletter, and the same holds with automations. Klaviyo charges by active profiles, including shoppers who never opted in; Omnisend charges by billable contacts, including customers who never subscribed; Mailchimp charges by stored contacts. At 5,000 subscribers a basic newsletter costs $100/mo on Klaviyo Email, $81/mo on Omnisend Standard, $75/mo on Mailchimp Essentials. Note: with automations, Mailchimp wins on a plan where automations are capped; uncapped automations start at Standard (from $20/mo) on Mailchimp (see Key differences).
Who this is for: Shopify and other online stores. Ranked by cost only; no platform pays for its position. Price your exact list size in the calculator →
Cost at 1k, 5k, 10k and 25k subscribers
Basic newsletter (no automations)
| Subscribers | Klaviyo | Omnisend | Mailchimp | Cheapest |
|---|---|---|---|---|
| 1,000 | $30 (Email) | $20 (Standard) | $26.50 (Essentials) | Omnisend |
| 5,000 | $100 (Email) | $81 (Standard) | $75 (Essentials) | Mailchimp |
| 10,000 | $150 (Email) | $132 (Standard) | $110 (Essentials) | Mailchimp |
| 25,000 | $400 (Email) | $282 (Standard) | $270 (Essentials) | Mailchimp |
With automations (welcome sequences, drips)
| Subscribers | Klaviyo | Omnisend | Mailchimp | Cheapest |
|---|---|---|---|---|
| 1,000 | $30 (Email) | $20 (Standard) | $26.50 (Essentials, limited) | Omnisend |
| 5,000 | $100 (Email) | $81 (Standard) | $75 (Essentials, limited) | Mailchimp |
| 10,000 | $150 (Email) | $132 (Standard) | $110 (Essentials, limited) | Mailchimp |
| 25,000 | $400 (Email) | $282 (Standard) | $270 (Essentials, limited) | Mailchimp |
Monthly billing, excluding tax, cheapest plan on each platform that covers the list size and required features (the same numbers as our calculator). "limited" = feature is capped on that plan.
Key differences
| Klaviyo | Omnisend | Mailchimp | |
|---|---|---|---|
| Free plan | free up to 250 subscribers | free up to 250 subscribers | free up to 250 subscribers |
| Cheapest plan with uncapped automations | Free (free) | Free (free) | Standard (from $20/mo) |
| Cheapest plan with own domain | Email (from $20/mo) | Free (free) | not verified |
| Cheapest plan without platform branding | Email (from $20/mo) | Standard (from $16/mo) | Essentials (from $13/mo) |
| Plans | Free, Email | Free, Standard, Pro | Free, Essentials, Standard, Premium |
| Prices verified | 2026-10-27 | 2026-10-27 | 2026-10-27 |
Who each is best for
Klaviyo is best for
Online stores (Shopify, WooCommerce and the like) that live on behaviour-triggered flows and purchase data, and accept a higher per-profile price for that.
- Priced by active profiles: everyone you can email, including shoppers who gave an email at checkout without opting in. Each tier includes 10 sends per profile a month; outgrow the tier and you move up at the next billing cycle. source
- Free plan: 250 active profiles and 500 emails a month, with flows and segmentation; Klaviyo branding stays until you pay for an email plan. source
- Self-serve billing is monthly only; annual contracts are for accounts spending $2,000+ a month. SMS and other channels are billed on top. source
Omnisend is best for
Ecommerce stores that want Klaviyo-style automation for less, especially at mid-size lists, and don't need paid newsletter subscriptions.
- Priced by billable contacts: subscribers plus non-subscribed customers who can still get automated messages; only unsubscribes are excluded, and the tier adjusts every billing cycle. source
- Free: 250 contacts and 500 emails a month with all features, Omnisend badge stays. Standard sends 12x your contacts; Pro has unlimited email and starts at $59 (2,500 contacts). source
- Monthly billing only; first-time upgraders can prepay 3 months at 30% off. SMS is a separate add-on on Pro. source
Mailchimp is best for
Small businesses that want an all-round email marketing tool with automation flows (Standard and up) and are fine with contact-based pricing and overage billing.
- Priced by stored contacts (the peak in each billing period); each tier includes a monthly send limit of 10× (Essentials), 12× (Standard) or 15× (Premium) your contacts. source
- Going over the contact or send limit on a paid plan adds overage charges rather than pausing sending. source
- Free plan: 250 contacts and 500 emails/month (250/day), no automation flows, Mailchimp branding stays. source
- Annual billing is only available through sales (Standard and Premium, 10,000+ contacts). On 2026-10-20 the page offered 15% off the first 12 months at 10,000+ contacts. source
Head-to-head comparisons
Klaviyo vs Mailchimp · Klaviyo vs Omnisend · Omnisend vs Mailchimp
Sources: Klaviyo pricing (checked 2026-10-27), Omnisend pricing (checked 2026-10-27), Mailchimp pricing (checked 2026-10-27); plan notes link to each platform's own help or pricing pages above.
FAQ
Which is cheapest: Klaviyo, Omnisend, Mailchimp?
In our data (monthly billing, cheapest plan that covers the list): basic newsletter, Omnisend is cheapest at 1,000 subscribers; Mailchimp is cheapest at 5,000, 10,000 and 25,000 subscribers. With automations, Omnisend is cheapest at 1,000 subscribers; Mailchimp is cheapest at 5,000, 10,000 and 25,000 subscribers. Prices verified 2026-10-27 on each platform's official pricing page.
Which has the biggest free plan?
Klaviyo: free up to 250 subscribers. Omnisend: free up to 250 subscribers. Mailchimp: free up to 250 subscribers. None covers more subscribers for free than the others; free plans also cap emails, automations and branding (see the table).
How much do they cost at 10,000 subscribers?
Basic newsletter: $150/mo on Klaviyo Email, $132/mo on Omnisend Standard, $110/mo on Mailchimp Essentials. With automations: $150/mo on Klaviyo Email, $132/mo on Omnisend Standard, $110/mo on Mailchimp Essentials.
Which is cheapest with automations at 1,000 subscribers?
$30/mo on Klaviyo Email, $20/mo on Omnisend Standard, $26.50/mo on Mailchimp Essentials. "Limited" in the tables means the plan's automation features are capped. Note: with automations, Mailchimp wins on a plan where automations are capped; uncapped automations start at Standard (from $20/mo) on Mailchimp (see Key differences).
Related guides: Klaviyo Free plan limits (2026) · Klaviyo SMS pricing (2026) · Is Omnisend free? Free plan limits (2026) · Mailchimp SMS pricing (2026) · Brevo SMS pricing (2026) · Brevo WhatsApp pricing (2026) · Newsletter platform refund policies (2026) · Mailchimp to Klaviyo migration · all guides
Comparisons: Klaviyo vs Mailchimp · Klaviyo vs Omnisend · Omnisend vs Mailchimp · Cheapest for 500, 1,000, 2,500, 5,000, 10,000, 25,000 subscribers
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