# #2 Klaviyo

Klaviyo is a marketing platform, mainly for ecommerce brands, that combines a customer data profile with email, SMS and other mobile messaging, automated flows, segmentation, reviews and reporting. Website: klaviyo.com. Category: [Email Marketing & Lifecycle](https://gtmranked.com/best/email-marketing/). Score 54/100 (15 positive, 8 mixed, 3 negative of 26 independent comments).

**Verdict:** Independent users in r/ecommerce and r/Emailmarketing broadly treat Klaviyo as the most capable email tool for online stores, crediting segmentation and flows built on real purchase data, and several who moved from Mailchimp say they would not go back. The main trade-off is cost and effort: users report the bill climbing fast as a list grows past a few thousand to 30k contacts, and say it takes a dedicated owner to get value from it. About half the comments in this corpus were promotional, including a cluster of near-identical posts from different accounts pitching a switch to Omnisend, plugs for smaller SMS, popup and email tools, and agency owners; those were excluded.

**What users like:**
- Segmentation and flow logic built on store purchase data are rated the strongest of the ecommerce email tools discussed [1](https://www.reddit.com/r/Emailmarketing/comments/1rq28cb/_/o9qhp4l/) [2](https://www.reddit.com/r/ecommerce/comments/1riq0i0/_/o8e52pm/) [3](https://www.reddit.com/r/Emailmarketing/comments/1rq28cb/_/o9xmgdz/) [4](https://www.reddit.com/r/ecommerce/comments/1rra19p/_/o9ztob0/) [5](https://www.reddit.com/r/Emailmarketing/comments/1myowww/_/nalk3n7/)
- Users who moved from Mailchimp say it is clearly better, and some call it easy to use [1](https://www.reddit.com/r/Emailmarketing/comments/1rq28cb/_/o9qhp4l/) [2](https://www.reddit.com/r/Emailmarketing/comments/1p7frf6/_/nqyr1ls/) [3](https://www.reddit.com/r/ecommerce/comments/1ue8aup/_/otoptk2/) [4](https://www.reddit.com/r/Emailmarketing/comments/1riegyt/_/o869tea/) [5](https://www.reddit.com/r/Emailmarketing/comments/1rq28cb/_/o9v0i2i/)
- The deep Shopify integration makes it a natural source of truth that other store apps feed customer data into [1](https://www.reddit.com/r/ecommerce/comments/1suxc6k/_/oi7cv1z/) [2](https://www.reddit.com/r/ecommerce/comments/1s3pwbo/_/ocj6s14/) [3](https://www.reddit.com/r/ecommerce/comments/1s3pwbo/_/ock4l2o/)
- Handles standard abandoned-cart flows well for smaller stores, and its own academy is called better than most paid courses [1](https://www.reddit.com/r/ecommerce/comments/1sqkutt/_/oh8w2y4/) [2](https://www.reddit.com/r/ecommerce/comments/1u5ysm2/_/orsax7m/)

**What users complain about:**
- Price climbs quickly as the contact list grows; users cite it hurting at a few thousand contacts and around 25k to 30k, and suppress inactive profiles to slow tier jumps [1](https://www.reddit.com/r/ecommerce/comments/1o6awha/_/oojfbym/) [2](https://www.reddit.com/r/Emailmarketing/comments/1rq28cb/_/o9upqs7/) [3](https://www.reddit.com/r/ecommerce/comments/1ostcbr/_/nr6ol00/) [4](https://www.reddit.com/r/Emailmarketing/comments/1rq28cb/_/o9qhp4l/) [5](https://www.reddit.com/r/Emailmarketing/comments/1rq28cb/_/oll1c4x/)
- Complex to run: users say it can become a part-time job without a dedicated owner and is not easy to use or migrate to [1](https://www.reddit.com/r/ecommerce/comments/1ue8aup/_/otq3etn/) [2](https://www.reddit.com/r/ecommerce/comments/1riq0i0/_/o88usst/) [3](https://www.reddit.com/r/Emailmarketing/comments/1qb35c8/_/nzbvr7t/)
- One auditor of seven-figure brands reports that Klaviyo's attributed revenue largely credits sales that came from paid traffic, overstating its real impact [1](https://www.reddit.com/r/ecommerce/comments/1suxc6k/_/oic5eix/)

**Best for:** Shopify and WooCommerce stores that want flows and segments built on purchase behaviour; Brands outgrowing Mailchimp or Shopify Email that have someone to own email; Teams using it as the central customer profile that other store apps feed into.
**Skip it if:** Small stores with large, low-engagement lists that only need basic newsletters; Teams with no one to set up and maintain flows; Businesses outside ecommerce.
**Pricing (vendor-stated, checked 2026-10-14):** Free plan for up to 250 active profiles with 500 email sends/month, $5 of mobile messages and $5 of Composer AI usage per month, and 60 days of email support. Paid Email starts at $20/mo for 500 active profiles and 5,000 emails/month, priced by active profiles; SMS costs from $0.01 plus carrier fees per send (US toll-free), and other products (Customer Hub, social, reviews, Composer) are add-ons. Prices are shown per month; the page does not state an annual option.

Full review: https://gtmranked.com/tools/klaviyo/