Best SMS Marketing Platforms Comparison in 2026: 9 Platforms Compared

Klaviyo starts free for up to 250 profiles, and paid email plans start at $20 per month. SMS is charged at per message dollar rates, with a small amount of mobile message value included on the free plan. That model rewards careful targeting: you can build flows for abandoned carts, post purchase follow up, and back in stock alerts that use email first and SMS only when it adds value.

The strength of Klaviyo is data. Segments can combine purchase history, browsing, and past message engagement, so a text goes to people who are likely to act rather than to the whole list. The weakness is complexity. Small teams may need time to set up flows, consent collection, and quiet hours correctly, and SMS bills can climb if you send frequent broadcasts to a large list.

Attentive is built for brands that treat SMS as a major revenue channel, not a side channel. It supports sign up units, two way conversations, triggered journeys, and AI assisted personalization, with tools for TCPA compliance, quiet hours, and opt out handling. Larger accounts get onboarding and strategy support, which matters when list growth and deliverability need close attention.

The honest catch is price transparency. Attentive does not publish a simple starter price, and reports put entry costs well above budget tools, with per message fees on top. That can still be worth it for a brand sending high volume campaigns with strong returns, but a small store should start with a free or low cost plan elsewhere and move up when SMS revenue justifies a dedicated platform.

Postscript offers a free starter tier with a minimum monthly spend, and paid growth plans from around $100 per month in published comparisons. SMS is priced per message, with MMS at a higher rate, plus carrier fees. The platform is Shopify native, so order data, discounts, and customer tags flow in without custom work.

Postscript stands out for conversation. Two way messaging, smart replies, and live chat style inboxes help a store answer questions and close sales by text, not just broadcast offers. The limit is scope: if you leave Shopify or need email in the same tool, you will need a second platform. For a Shopify store that wants SMS done well, that focus is a benefit, not a flaw.

SimpleTexting starts at $29 per month in published comparisons, with a trial available. It covers mass texting, scheduled campaigns, keywords for list growth, two way replies, and simple automations. That makes it a good fit for clinics, gyms, churches, schools, and local service businesses that need reminders and announcements more than complex purchase flows.

SimpleTexting is easy to learn, which is its main advantage over ecommerce heavy platforms. The trade off is depth. You will not get the same purchase based segmentation or Shopify flow library as Klaviyo or Postscript, and credit based plans mean you should model your monthly send volume before choosing a tier. Unused credits and rollover rules vary, so check the plan terms.

EZ Texting starts at $25 per month in published comparisons, with credits for messages. It is designed for businesses that want to announce sales, send reminders, and grow a list from a storefront, event, or website form. Keywords, short codes or toll free numbers, and simple scheduling cover most local use cases without a long setup.

The platform is less suited to a store that needs deep order based flows or AI driven product recommendations. For a restaurant, salon, or retail shop, that simplicity is often the right trade. Watch MMS costs, since image messages use more credits, and confirm carrier registration requirements for your sending number before your first campaign.

SlickText starts at $29 per month for 500 credits, with a 14 day trial. One SMS equals one credit and MMS uses three credits in published descriptions, and all features are included on every plan rather than gated by tier. Paid plans include unlimited contacts and rollover credits, which helps seasonal businesses that send heavily in some months and lightly in others.

SlickText is a good pick for teams that value clear pricing and direct support. Live phone, chat, and email support are part of the offer, which is not true for every budget tool. The limit is integration depth: if you need complex Shopify or CRM automation, you may still need Zapier or a second tool. For straightforward campaigns, polls, and list growth, SlickText covers the job well.

Omnisend offers a free plan for up to 250 contacts in many descriptions, with paid Standard plans from around $16 per month. It combines email, SMS, and web push, with prebuilt flows for welcome series, cart recovery, and order follow up. That makes it a strong low cost alternative to Klaviyo for a new store that wants one tool for several channels.

SMS is the constraint. Free and low tier plans include limited SMS sends, and international SMS rates vary, so a store that plans to lean on texting should price the Standard or Pro plan with its expected volume. Omnisend still wins on value for email heavy stores that add SMS for key moments, such as cart recovery and shipping updates, rather than daily broadcasts.

Textedly focuses on mass texting for businesses, nonprofits, and community groups. Users can import contacts, schedule campaigns, set up keywords, and track delivery and replies from a simple dashboard. A free trial lets teams test list import and sending before committing.

Textedly is best for straightforward broadcast use: event updates, appointment reminders, and promotions to an opted in list. It is not the strongest choice for a store that needs deep purchase segmentation or two way sales conversations at scale. Because published pricing for Textedly varies across sources, we list starting price as See website and recommend checking the current plan page with your expected monthly volume.

Sakari is useful when SMS is part of sales and service work, not only marketing blasts. Teams get shared inboxes, contact management, scheduled messages, and integrations that sync conversations with a CRM. That helps a service business follow up on leads, confirm appointments, and keep a record of text conversations alongside email and calls.

Sakari is less focused on large promotional campaigns than Klaviyo, Attentive, or Postscript, so a high volume ecommerce brand may find its campaign tools lighter. For a B2B or service team that already uses HubSpot or a similar CRM, Sakari fills a gap that a pure marketing platform leaves open. Confirm pricing on the current plan page, since Sakari sells by plan and message volume.