Best SMS Marketing · FREE
Best free SMS Marketing (2026)
3 sms marketing that offer a genuine free plan, ranked by entry price. Every figure links to the public page it was captured from — the vendor's own wherever the vendor publishes the number, otherwise the named public source — with the date we captured it.
Key takeaways
- Cheapest: Klaviyo SMS at $0/mo.
- Qualifying: Klaviyo SMS, Omnisend, Postscript.
- Data current through: 2026-09-14.
Comparison
| # | SMS Marketing | Entry price | Free | HIPAA | SOC 2 | Best for | Source |
|---|---|---|---|---|---|---|---|
| 1 | Klaviyo SMS | $0/mo | Yes | — | — | E-commerce brands wanting unified email + SMS in one data platform | klaviyo.com |
| 2 | Omnisend | $0/mo | Yes | — | — | E-commerce SMBs wanting combined email + SMS at low entry price | omnisend.com |
| 3 | Postscript | $0/mo | No | — | — | Shopify and Shopify Plus brands exclusively | postscript.io |