K
Klaviyo
klaviyo.com · Klaviyo SMS Marketing · scored Dec 2025Klaviyo blocks known litigators, bills you per profile
Best forData-driven e-commerce brands on Shopify scaling SMS revenue
Unified email and SMS platform for e-commerce brands, built on one customer profile.
The thing people get wrong
You only pay for the SMS messages you send
Billing is based on active profiles, plus SMS credits, even for contacts not messaged
Source: plivo.com
Upside
- Unified email and SMS profiles
- Known Litigator suppression feature
- Carrier fees included in pricing
Catch
- Bills for active profiles, not just sends
- Steep learning curve reported
- SMS limited to a few regions
Editor's takeKlaviyo scores 9.5 out of 10 for data-driven personalization, the top mark among SMS tools rated here. Its Known Litigator feature automatically suppresses contacts tied to TCPA lawsuits, rare among rivals. Billing charges for active profiles, so cost can climb even without sending more messages.
What is Klaviyo's Known Litigator feature?
It automatically blocks contacts known or suspected of threatening TCPA lawsuits from subscribing to SMS, reducing legal risk.
How does Klaviyo's SMS pricing work?
Plans start at $20 a month with a free tier available. Cost is based on active profiles plus SMS credits, and carrier fees are included.
The evidence: 6 criteria, 3 penalties (−0.15 points)
Score adjustments−0.15 points in total







