Klaviyo
Klaviyo is an email and SMS marketing platform that combines list data, automation flows and AI agents for ecommerce brands. It is used to build segmented campaigns, automated flows and product review requests from one dashboard.
#6 in Marketing ToolsEmail Marketing SoftwareFree plan
Who it's for
Best for
Ecommerce marketers who need deep segmentation and automated flows
Retail teams with large lists that benefit from advanced automation
Not for
Small stores on tight margins that cannot absorb profile-based billing
Teams that need a phone line and a fast human reply during a launch
Features
Composer AI marketing agent
Composer spots revenue opportunities in store data, then plans and launches personalized campaigns across channels, with every result measured after approval.
Agent for service questions
The service agent resolves 65% of questions autonomously, pre-trained on a brand's details from day one and customizable with skills.
Channels in one platform
Email, SMS, WhatsApp, mobile push, reviews and social marketing run from a single platform so each message responds to real-time behavior.
Klaviyo Data Platform
Klaviyo Data Platform unifies behavioral, transactional and engagement data in real time so it can be put to work across every touchpoint.
Personalization models
Models decide who to reach, what to say, where to send and when for each individual, powered by 9B+ profiles with controls that can be seen and adjusted.
What users say
Pros
- The interface for building campaigns, flows and WooCommerce integrations is cleaner and easier to work in than general CRM tools.
- Emails consistently reach inboxes, with open rates strong enough that leaving the platform feels risky.
- Product reviews sync automatically into existing flows through the WooCommerce reviews add-on, without major setup headaches.
Cons
- The monthly cost runs high for small stores, making cheaper alternatives look far more attractive.
- Billing counts every profile on the list, so dormant and unsubscribed contacts keep adding to the monthly bill.
- Billing follows a pre-cleanup snapshot of the list, and plans upgrade automatically even with auto-upgrade switched off.
- Cancelling or closing an account takes repeated attempts, and charges can continue long after a store closes.
- Chat requests hit an AI bot and ticket queue, with replies arriving hours late and issues bounced between departments.
- Accounts get suspended without warning or explanation, wiping out campaigns and flows already built.
A selection of the review sources we used:
Summarized from public user reviews and community discussions. View details
Global Traffic Rank
Top 50k
Alternatives
Rank#6 in category#7 in category#12 in category#13 in category
Free planYesYesYesNo
ProAdvanced segmentation, clean interface, strong open ratesNo-engineer email building, quick chat fixes, all-in-one toolFree tier, campaigns plus API, fast setup, deep reports, supportFair proration, loyalty credits, stacking vouchers
Better forStoring large contact lists without per-profile billing, with paid plans starting at $9/month.
Weaker atBuilding complex ecommerce flows quickly in a clean, smooth campaign and automation editor.