Best email & SMS tools for 2026

The right email/SMS stack depends on list size and whether you need SMS. Start on a free tier, upgrade only when volume forces it.

Email/SMS platforms range from free-to-start to enterprise. For a DTC brand the choice is mostly Klaviyo vs lighter alternatives, plus whether you add SMS in the same tool. Pick by list size, SMS need, and budget, not brand name. AI browses current pricing into a comparison; you confirm the live numbers before committing.