Features, use cases, pros and cons, and pricing side by side — and which one to pick.
Quick verdict: Mailchimp and Omnisend both offer robust email campaigns and advanced automation. Mailchimp focuses on broad marketing while Omnisend excels at e-commerce automation.
Best for: Small businesses that want email and SMS marketing in one tool, Ecommerce stores running on Shopify, WooCommerce, Wix, or Squarespace
Read the full Mailchimp reviewBest for: Buyers who verify vendor claims themselves before committing, Teams that want to explore a product through self-serve demos or videos first
Read the full Omnisend reviewCommission may apply at no extra cost
Compare key features side by side
Feature Comparison Summary
Omnisend offers 24/7 support across all plans; Mailchimp reserves priority support for Premium users.
Mailchimp users report extremely frustrating support experiences lately. Even personalized onboarding is limited to Standard and Premium tiers. Omnisend boasts award-winning 24/7 live chat and email support for every single customer. Their support is highly praised during migrations from competitors like Klaviyo. Customer reviews rate Omnisend's support as superb and personalized; Mailchimp's erratic service is a major complaint point. Omnisend is the clear winner if you need reliable help at 2 AM on any plan tier. If you value rapid, knowledgeable assistance, Omnisend is the safer choice compared to Mailchimp.
Omnisend is purpose-built for e-commerce; Mailchimp provides strong but generalized marketing tools.
Mailchimp syncs data using 300+ integrations like Shopify and Google Analytics. It drives growth but is not exclusively tailored for online stores. Omnisend emphasizes a 47.7% higher conversion rate via integrated email and SMS marketing. It features robust abandoned cart workflows and dynamic sales discount codes. Omnisend's features like abandoned cart recovery are native and central to the platform’s design. Mailchimp treats e-commerce as one of many use cases across its vast offering. E-commerce shops focused on revenue recovery should find Omnisend’s specialized automations more effective and easier to manage.
Omnisend integrates SMS seamlessly with bonus credits; Mailchimp treats SMS as a complicated, paid add-on.
Mailchimp requires separate application and purchase of monthly SMS credits in select countries only. Unused SMS credits expire monthly and do not roll over. They seamlessly combine email and SMS workflows for better conversion. Omnisend incentivizes omnichannel strategy with Pro plan credits and deep integration. Mailchimp makes SMS a separate, complicated expense that needs careful management.
Mailchimp integrates generative AI for fast content creation; Omnisend does not focus on these tools.
Mailchimp Standard and Premium plans include generative AI tools to help write subject lines and content. This feature aims to speed up and streamline content output significantly. Omnisend focuses automation on sales workflows, segmentation, and dynamic coupon codes. It emphasizes design customization instead of AI writing assistance. Mailchimp is clearly ahead in incorporating smart content creation tools for faster output. Omnisend chooses to focus its efforts on functional e-commerce growth tools. Teams needing to draft large volumes of fresh email content quickly should choose Mailchimp for its superior AI assistance capability.
Mailchimp offers 300+ integrations for broad usage; Omnisend focuses on 160+ core e-commerce apps.
Mailchimp integrates with over 300 platforms like Shopify, Canva, and QuickBooks Online. This robust system supports massive data synchronization for diverse business needs. Omnisend offers single-click integration with 160+ tools, focusing heavily on e-commerce platforms like Shopify and BigCommerce. Integration is quick and reliable. Mailchimp provides broader connectivity covering many vertical markets beyond retail. Omnisend ensures quick, deep data connection within the e-commerce sphere. If you use specialized non-e-commerce adjacent tools, Mailchimp's massive library provides significantly better coverage than Omnisend.
Mailchimp pairs a genuinely usable free tier with polished email design, strong automations, and 300+ integrations, though costs climb with your contact count and top features sit behind pricier tiers. Overall, it's a dependable starting point for small businesses and ecommerce stores — just watch for automatic overage billing.
Omnisend pairs a genuinely usable free plan with clear tiered pricing, free migration, and 24/7 support on every plan. The caveats are real though: headline prices depend on a three-month prepay, contact caps rise quickly, and no refund terms are published. Overall, it's a solid pick for small stores that check billing details before committing.
Mailchimp is an email and SMS marketing platform owned by Intuit. It helps small businesses, ecommerce stores, non-profits, and professional services grow their audience and drive sales. You get a drag-and-drop email builder, marketing automations, AI content tools, reporting, and 300+ integrations with tools like Shopify, Canva, and Salesforce. Plans run from a basic free option up to Premium, so it can scale as your contact list grows.
Omnisend is a software vendor at omnisend.com. In this crawl, its homepage contained only cookie-consent and tracking disclosures — from providers like Cookiebot, Cloudflare, Google, Meta, HubSpot, and LinkedIn.
No plan names, prices, or feature copy appeared. Because of that, this review can't confirm who the product serves from the page alone.
List prices from each vendor's pricing page, before taxes and add-ons. Costs are per month.
| Pricing compared | Mailchimp | Omnisend |
|---|---|---|
| From (cheapest paid plan) | $20/mo Standard | $11.20/mo Standard |
| Free plan | Yes Max 250 contacts; sending pauses if contact or email send limits are exceeded | Yes 500 monthly emails, 250 contacts, 500 web push notifications; no credit card required. |
| Free trial | 14 days | Not stated |
| Money-back guarantee | Not stated | Not stated |
| Annual billing savings | — | — |
| Pricing model | Flat price | Flat price |
| Cost for 1 user | Free Free plan, billed annually | Free Free plan, billed annually |
| Cost for 5 users | $20/mo Standard plan, billed monthly · price per account (user limit not stated) | $11.20/mo Standard plan, billed monthly · price per account (user limit not stated) |
| Cost for 10 users | $20/mo Standard plan, billed monthly · price per account (user limit not stated) | $11.20/mo Standard plan, billed monthly · price per account (user limit not stated) |
| Cost for 25 users | $20/mo Standard plan, billed monthly · price per account (user limit not stated) | $11.20/mo Standard plan, billed monthly · price per account (user limit not stated) |
| Plans | 4 | 4 |
| Prices checked | Vendor page checked Oct 13, 2026 | Checked Oct 13, 2026 |
| Price history | Tracking prices since Oct 1, 2026. No price change detected yet. | Tracking prices since Sep 7, 2026. No price change detected yet. |
For 1 user (billed annually), Mailchimp and Omnisend both cost $0/mo.
Computed from published list prices on the dates shown. Excludes taxes, add-ons and promotions.
Omnisend is the clear winner, offering award-winning 24/7 support across all plans. Mailchimp reserves phone and priority support for its highest-paying Premium customers. Mailchimp users frequently complain about slow or unhelpful responses in reviews.
Omnisend is purpose-built for e-commerce, focusing on sales performance features. Omnisend data shows a 47.7% higher conversion rate using its integrated email/SMS approach. Mailchimp’s marketing tools are effective but less specialized for retail.
Mailchimp includes generative AI tools for writing content and subject lines on Standard and Premium plans. Omnisend does not currently list native generative AI tools. Mailchimp is better if content drafting speed is your priority.