Ecommerce marketing platforms Omnisend and Klaviyo differentiate themselves from other email marketing tools with their specific focus on helping online stores grow. The difficult question is, which one do you choose? We compare the features, support, and pricing of Omnisend vs Klaviyo below to help you select the best one for your business.
Omnisend vs Klaviyo Email Marketing Tool Comparison Chart
Name | Omnisend | Klaviyo |
![]() | ![]() | |
Price | Check Price at Omnisend.com | Check Price at Klaviyo.com |
Email Sends per Month | Free: 15,000 Standard: 12x List Pro: 15x List Enterprise: 60x List | Free: 500 Paid: 10x List |
Contacts | Free: Up to 200,000 Standard: Up to 200,000 Pro: Up to 200,000 Enterprise: 200,000+ | Free: 250 Paid: 150,000+ |
Drag and Drop Builder | Yes | Yes |
A/B Testing | Yes | Yes |
Segmentation | Limited | Unlimited |
Behavioral Targeting | Yes | Yes |
Visual Automation | Yes | Yes |
Forms and Landing Pages | Yes | Yes |
SMS Marketing | Yes | Yes |
Push Notifications | Yes | No |
Facebook Messenger | Yes | No |
24/7 Support | Yes | No |
Mobile App | No | Yes |
Integrations | 10+ | 100+ |
Email Campaigns
Omnisend lets you send more emails per month than Klaviyo.

Omnisend lets you send out more emails every month compared to Klaviyo. Comparing their Free plans, Klaviyo only lets you send out a maximum of 500 emails while Omnisend gives you 30 times more. Moreover, Omnisend doesn’t limit how many contacts you can have in their Free plan, while Klaviyo requires that you move up to a paid plan when you go over 250 contacts.
Email sends and subscriber count limits work differently for Omnisend and Klaviyo. Omnisend has a more traditional pricing tier system. Their Standard, Pro, and Enterprise plans let you send emails up to 12x, 15x, and 60x your subscriber list every month, with a minimum of 15,000 email sends. There are no listed contact count maximums, but anything over 200,000 contacts requires a custom plan.
Meanwhile, Klaviyo has a flexible pricing system that scales up quite steeply as your contact list increases. However, you can send an unlimited number of email every month until your contacts exceed 50,000. At this point, your monthly email sends will be maxed at 10x your list. This can make Klaviyo a bit more attractive if you don’t have a sizable list yet.
Email Building and Testing
Both Omnisend and Klaviyo provide preset templates and drag-and-drop builders to help you get started on creating emails. They make designing email simple and easy, and you can pull products directly from your online store. Omnisend does have a few more ecommerce-friendly content blocks such as unique discount codes, gift boxes, and scratch cards.
On the other hand, Klaviyo’s A/B testing options are more plentiful. You can test different variables such as sender name, subject lines, discount values, color schemes, send times, and content. Omnisend is limited to pretty much the first two.
Other Marketing Channels
Omnisend covers more marketing channels than Klaviyo.

In addition to email marketing, Omnisend and Klaviyo both include SMS marketing in their platforms. Omnisend includes free SMS credits per month on the Pro and Enterprise plans though, while you only get SMS credits on Klaviyo if you pay for them.
Recently, Omnisend added web push notifications and Facebook Messenger to their list of marketing channels, providing more ways for users to reach customers. Browser notifications can be an effective way of reminding site visitors of promos and cart checkouts. The inclusion of Facebook Messenger further allows campaigns and cart activity to be more successful at securing sales. Klaviyo doesn’t have either of these but it does allow iOS app push notifcations.
Both can be integrated into Facebook ad campaigns, letting you sync lists and segments so that you can reach optimal audiences when launching ads on the social media platform. Omnisend further adds syncing with Google Ads, giving it a slight edge.
Automation and Segmentation
Klaviyo allows unlimited segmentation while Omnisend limits segments per tier.

A big difference between Omnisend and Klaviyo’s subscriber list features is that you can create and save as many segments as you like on Klaviyo. You can choose from various criteria, such as profile data, campaign activity, and shopping behavior, to ensure you’re as specific as possible in determining members of each segment. In contrast, on Omnisend you’re limited to a number of segments depending on which plan you’re on. You get 5, 20, 50, and 200 segments for the Free, Standard, Pro, and Enterprise tiers, respectively.
Automation is a big part of why Omnisend and Klaviyo continue to be integral to their ecommerce customers. Both provide a visual automation workflow that you can customize with conditional splits and trigger splits to target specific users. You can design your customer lifecycle as you wish and map out the ideal experience each one gets end-to-end. It can result in some pretty complex workflows that still remains easy to understand because of the visual diagrams.
Omnisend has started inching up on their automation features, though, allowing you to integrate other marketing channels into your workflows. This lets you follow up with an SMS reminding them of an abandoned cart, engage them the next time they visit your store with a push notification, and even send a discount code days later.
Integrations, Support and Pricing
Klaviyo has more app integrations while Omnisend has 24/7 customer support.

Ecommerce enterprises that already have a well-developed marketing stack are going to find Klaviyo to be better prepared for syncing data. It has more integrations with popular ecommerce platforms and other marketing tools compared to Omnisend. This allows for even better targeting and automation, as well as improved reporting and ROI measurement.
If you need help with Omnisend’s features, they have a 24/7 live chat and email support standing by. Klaviyo has a more limited time frame, with their email support only being available during 6 am to 10 pm ET on weekdays and 10 am to 4 pm ET on weekends. Chat support is even more restricted, as it’s only available for paid customers and only during weekdays, 9 am to 5 pm ET. This can pose some challenges if you’re located in a different time zone.
As for the actual plans, Omnisend locks certain features depending on tier while Klaviyo makes all features available as soon as you start a paid subscription. Of note here is that certain app integrations in Omnisend are only available on Pro and Enterprise plans, though it does grant priority support and a dedicated account manager for the latter. Connecting Facebook Messenger is also an Enterprise-only feature.
Both Omnisend and Klaviyo are among the pricier email marketing tools today. Omnisend’s Pro plan costs roughly close to Klaviyo’s paid plan based on subscriber counts. The difference is you get free SMS credits equal to the price of your monthly plan in Omnisend, while Klaviyo has no such freebies.
Verdict
Omnisend offers more value and a wider toolset than Klaviyo.
Omnisend clearly stands out in this comparison, as it offers more monthly emails, higher subscriber counts, more marketing channels, and constantly available support. Its Free plan is particularly enticing for brand new businesses or those interested in its services, since it lets you send up to 15,000 emails per month. The Standard plan is a cost-efficient way to start automating your marketing efforts, while the higher tiers unlock even more channels to explore.
Klaviyo‘s strength is its highly developed list of app integrations, allowing businesses to sync data with more current tools. The ability to create unlimited list segments as well as conduct more varied A/B testing also lets you conduct more experimentation and fine-tuning to perfect your campaigns.