Email and SMS marketing automation platform that drives revenue through personalized customer journeys and omnichannel campaigns for Shopify merchants.
Klaviyo is one of the best free email marketing apps for Shopify stores in 2025, offering a free tier with 250 contacts, 500 monthly emails, and 150 SMS credits. The platform provides powerful automation tools, AI-powered segmentation, and seamless Shopify integration that helps merchants build targeted campaigns and track real-time revenue performance. With its intuitive drag-and-drop editor and robust analytics, Klaviyo enables store owners to create personalized customer journeys without needing technical expertise.
For free alternatives to Klaviyo, consider Mailchimp which offers a free plan with up to 500 contacts and basic email marketing features, and AfterShip Email Marketing & SMS which provides free email automation tools and SMS capabilities. While these alternatives offer solid basic functionality, Klaviyo stands out with its deeper Shopify integration, advanced segmentation, and omnichannel capabilities that drive higher conversion rates and better ROI for growing e-commerce businesses.
To set up abandoned cart automation in Klaviyo, first integrate your Shopify store with Klaviyo through the Integrations tab. Then navigate to Flows and select 'Create New Flow' > 'Abandoned Cart'. Configure the trigger settings (typically 1-2 hours after cart abandonment), customize your email template with product images and discount incentives, and set up follow-up messages. Use Klaviyo's segmentation to target high-value customers with different messaging, and A/B test subject lines and offers to optimize conversion rates.
To sync Shopify customer data with Klaviyo, go to your Shopify integration settings in Klaviyo and check 'Sync your Shopify email subscribers to Klaviyo' and 'Sync profiles and profile data from Klaviyo to Shopify'. Select your main email list for subscribers and choose which profile data to sync (name, email, phone, subscription status, custom properties). Enable onsite tracking to capture behavioral events like product views and add-to-cart actions, which will enhance your segmentation capabilities with real-time customer behavior data.
To improve email deliverability with Klaviyo, start by maintaining a clean email list and regularly suppressing inactive subscribers. Use Klaviyo's reputation repair AI feature to monitor and improve sender reputation, and implement double opt-in processes for new subscribers. Set up proper SPF, DKIM, and DMSP records in your domain settings, and use Klaviyo's built-in compliance tools to manage unsubscribe requests and honor privacy regulations. Monitor your deliverability metrics and adjust sending frequency based on engagement rates to maintain high inbox placement.
