How we make this list: we compare pricing pages, product documentation and public user reviews. Ratings come from G2, Capterra or Trustpilot, with the date we checked them.
Key takeaways
- Klaviyo and Attentive lead for stores that want email and SMS in one system, with AI agents and unified customer profiles.
- Postscript pitches lower sending costs with no profile fees, which matters most for high-volume SMS programs.
- SimpleTexting, SlickText, EZ Texting, and Textedly suit smaller stores and general businesses with simpler pricing and faster setup.
- ROI claims on vendor homepages are marketing figures. Measure revenue per message and list growth on your own store before scaling spend.
Quick comparison
| Tool | Best for | Starting price | Free plan |
|---|
 Klaviyo | Email plus SMS in one platform | Free | Yes |
 Attentive | AI-driven SMS and email | See website | No |
 Postscript | Shopify SMS with lower send costs | See website | No |
 Yotpo SMS | SMS plus loyalty and reviews | See website | No |
 SimpleTexting | Small business texting | See website | Free trial |
 SlickText | Easy setup and support | See website | Yes |
 EZ Texting | Compliance-first mass texting | See website | Free trial |
 Textedly | Scalable bulk SMS and MMS | See website | Yes |
Is your product missing or out of date?
We review this list regularly. Vendors can request a listing, send updated pricing or ask about featured placement.
#1Klaviyo
Best for: Email plus SMS in one platform4.6/5 on
G2 (1,368 reviews, checked Oct 2026)
Visit klaviyo.com
Starting priceFree
Free planYes
Klaviyo has moved from an email tool to a full B2C CRM that unifies customer data with email, SMS, RCS, WhatsApp, and mobile push. Its AI agent, Composer, audits flows, segments, and forms, then builds campaigns from customer data with human approval at each step. For e-commerce stores, the payoff is coordination: a cart abandonment flow can switch channels based on what the customer actually does, rather than blasting every channel at once.
The free plan covers core features, which makes Klaviyo the easiest premium platform to trial. The catch is that paid pricing scales with contact counts and channel usage, so a growing list raises costs on two axes at once. Stores already using Klaviyo for email get the most ROI, since SMS rides on the same data and segments.
What we like- Free plan with core features
- Unifies email, SMS, RCS, WhatsApp, and push
- 205,000 plus brands and 350 plus integrations
Watch out for- Pricing scales with contacts and channel usage
- Platform depth can overwhelm small teams
#2Attentive
Best for: AI-driven SMS and email4.6/5 on
G2 (1,078 reviews, checked Oct 2026)
Visit attentive.com
Starting priceSee website
Free planNo
Attentive pitches AI-powered personalization across SMS, email, RCS, and push, with a single customer ID that recognizes the same shopper across channels. Its homepage claims 2x higher list growth and 2x higher ROI versus prior setups, plus a 97x ROI figure for SMS journeys from customer stories. Send Time AI and Audience AI adjust timing and targeting from historical and real-time data.
Those ROI figures are vendor marketing, not guarantees, but the platform mechanics are genuinely strong for larger stores: built-in compliance tools, deliverability support for peak periods, and hands-on guidance from in-house experts. The missing piece is price transparency, since the homepage shows no plans. Attentive suits mid-size and larger stores that can use a demo and a managed onboarding.
What we like- AI personalization across SMS, email, RCS, and push
- Single customer ID across channels
- 20 plus countries
Watch out for- No prices on the homepage
- Enterprise-leaning positioning may price out small stores
#3Postscript
Best for: Shopify SMS with lower send costs4.8/5 on
G2 (161 reviews, checked Oct 2026)
Visit postscript.io
Starting priceSee website
Free planNo
Postscript rebuilt its platform for retention marketing across SMS, RCS, and email, with an agentic context platform that gives AI agents full customer context at the individual subscriber level. Its sharpest commercial claim is cost: lower base rates, no hidden fees, no profile fees, with compliance tooling included. For high-volume SMS programs, per-message rates drive ROI more than any feature, so that pitch deserves attention.
The platform leans heavily on Shopify brands, with logos like Ruggable, Dr. Squatch, and HexClad on the homepage. Stores on other platforms should confirm integration depth before committing. Postscript suits Shopify stores sending serious SMS volume who want costs kept visible and low.
What we like- Lower base rates with no hidden fees or profile fees
- Rebuilt platform for AI-era retention
- Compliance advocacy included
Watch out for- No prices on the homepage
- Shopify-centric focus limits fit for other platforms
Starting priceSee website
Free planNo
Yotpo bundles SMS with loyalty programs, reviews, referrals, and AI visibility tools, so a text can trigger a loyalty reward or follow a review request in one system. The homepage shows results like 38 percent higher sales from repeat customers at Goodr and 8x ROI from loyalty at Revolution Beauty, though those figures cover the loyalty suite rather than SMS alone. With 180 plus integrations, Yotpo fits stores that want retention tooling beyond messaging.
The trade-off is focus. SMS is one module inside a broad platform, so stores that only want texting may pay for breadth they never use. Yotpo suits brands already investing in reviews and loyalty who want SMS to amplify those programs rather than stand alone.
What we like- SMS sits beside loyalty, reviews, and referrals
- 180 plus integrations
- Strong e-commerce brand roster
Watch out for- SMS is one module of a larger suite
- Pricing requires a demo
Starting priceSee website
Free planFree trial
SimpleTexting keeps the pitch simple: import contacts or build a list with text-to-join keywords and popups, send targeted blasts, hold two-way conversations, and automate welcome and behavior-based texts. Its homepage cites 17,000 plus paying customers and billions of texts delivered, with case studies showing coupon redemption gains and faster registrations. A free trial with no credit card lets stores test the workflow on their own number first.
The limit is e-commerce depth. SimpleTexting covers SMS well but lacks the unified customer profiles and AI orchestration of the premium platforms. It suits small stores and service businesses that want reliable texting without enterprise complexity or pricing.
What we like- 10 plus years in business with 17,000 plus paying customers
- Free trial with no credit card
- 1,000 plus integrations
Watch out for- E-commerce automation is lighter than Klaviyo or Attentive
- Pricing not shown on the homepage
#6SlickText
Best for: Easy setup and support4.8/5 on
G2 (1,934 reviews, checked Oct 2026)
Visit slicktext.com
Starting priceSee website
Free planYes
SlickText positions itself as the easiest SMS platform to start, with a free tier, list growth tools like web forms, tap-to-join links, keywords, and QR codes, plus a drag-and-drop workflow builder for automated journeys. Its homepage reports over 124,000 text programs powered and 4.8 out of 5 stars across G2, Capterra, GetApp, and Software Advice, with US-based support behind it.
The platform trades depth for simplicity. Analytics cover campaigns, workflows, inbox, and messaging, but the automation is template-driven rather than AI-orchestrated. SlickText suits small and mid-size stores that value fast setup and human support over advanced personalization engines.
What we like- Free starting tier
- 124,000 plus text programs powered
- 4.8 out of 5 stars across review sites
- US-based support
Watch out for- Analytics depth trails enterprise platforms
- E-commerce flows are template-based rather than AI-driven
#7EZ Texting
Best for: Compliance-first mass texting4.5/5 on
G2 (744 reviews, checked Oct 2026)
Visit eztexting.com
Starting priceSee website
Free planFree trial
EZ Texting leads with compliance, which is a real ROI factor since carrier blocks and fines can erase campaign gains. The platform captures opt-in consent, adds one-tap STOP links, and aligns with CTIA rules and carrier 10DLC registration, with deliverability monitoring built in. Text-to-pay links let customers pay from a text in a few clicks, and multilingual texting covers English, French, Spanish, Hebrew, Arabic, and Korean.
The e-commerce feature set is thinner than the dedicated retention platforms, with fewer AI-driven flows and less store-data personalization. EZ Texting suits businesses that send high-volume promotional and transactional texts and want compliance handled by default rather than managed manually.
What we like- Built-in compliance with opt-in capture, STOP links, and 10DLC alignment
- Text-to-pay links
- Multilingual texting in six character sets
Watch out for- E-commerce-specific features are thinner than Klaviyo or Postscript
- Pricing not shown on the homepage
#8Textedly
Best for: Scalable bulk SMS and MMS4.6/5 on
G2 (1,451 reviews, checked Oct 2026)
Visit textedly.com
Starting priceSee website
Free planYes
Textedly pitches scale without contracts: month-to-month plans from 500 to 500,000 messages, unlimited contacts, two-way texting, drip campaigns, smart auto-replies, and MMS support. The homepage claims 82 percent of texts are opened within five minutes and a 99 percent delivery rate, figures consistent with industry SMS benchmarks. Day-one onboarding and 24/7 live human support lower the setup burden for small teams.
The homepage pricing slider displayed placeholder figures during this review, so real plan costs need a signup or sales check. Textedly suits stores and organizations that need bulk SMS at scale with simple pricing logic and no long-term contract.
What we like- Free signup
- Scales from 500 to 500,000 messages
- Unlimited contacts with no caps
- 24/7 live human support
Watch out for- Pricing slider shows placeholder figures on the homepage
- AI voice agents are a newer add-on
How we chose
We opened each vendor homepage and compared channel coverage, e-commerce integrations, automation depth, compliance tooling, free tiers, and pricing transparency. Where homepages showed no prices, we recorded "See website" rather than inventing figures. Vendor ROI claims are reported as vendor claims, not measured results, since real ROI depends on list quality, offer strength, and send frequency on each store.
Measuring SMS ROI on your own store
Vendor ROI multiples make good headlines and poor budgets. The numbers that matter are revenue per message, cost per message including platform fees, unsubscribe rate, and list growth rate. Track revenue attributed to SMS flows separately from campaigns, since flows like abandoned cart and welcome series usually outperform one-off blasts.
Frequency is the hidden lever. Sending more texts raises short-term revenue and long-term unsubscribes at the same time, so test one extra send per week against a holdout group before adopting it. Keep an eye on carrier compliance too: a blocked number or a spam complaint spike can pause a program entirely, which costs more than any single campaign earns. Review the opt-in source for every new batch of subscribers, since purchased or borrowed lists destroy deliverability fast. A clean list beats a large list every time.
Frequently asked questions
Is SMS marketing worth it for small e-commerce stores?
Often yes, because open rates far exceed email. Start with a free or trial tier, build a compliant opt-in list, and measure revenue per message before scaling volume.
How much does SMS marketing cost?
Costs combine a platform fee and per-message carrier charges. Some platforms bundle credits, others charge separately. Check whether profile fees, MMS surcharges, and carrier fees apply before comparing headline prices.
Do I need consent before texting customers?
Yes. US carriers and the law require express opt-in consent for marketing texts, with clear opt-out instructions. Platforms here provide opt-in tools, but the store remains responsible for consent records.
Which platform is best for Shopify stores?
Postscript is built around Shopify, and Klaviyo integrates deeply with Shopify as well. Both suit Shopify-first stores, while SimpleTexting and SlickText suit stores that want simpler standalone texting.
What is a good SMS ROI benchmark?
Vendor claims range widely and should not be treated as benchmarks. Measure your own revenue per message and unsubscribe rate over at least a month, then compare platforms on those figures.
Can I use SMS and email together?
Yes, and the strongest platforms here are built for it. Use email for longer stories and SMS for time-sensitive offers, and avoid sending the same offer on both channels at the same moment.
Sources we checked (8)
- https://www.klaviyo.com/
- https://www.attentive.com/
- https://postscript.io/
- https://www.yotpo.com/
- https://simpletexting.com/
- https://www.slicktext.com/
- https://www.eztexting.com/
- https://www.textedly.com/
Is your product missing or out of date?
We review this list regularly. Vendors can request a listing, send updated pricing or ask about featured placement.
Shihab Mia · Founder, Rankite
Shihab has 5+ years in B2B and SaaS SEO. He writes Rankite's software buying guides from pricing pages, documentation and public user reviews. More about Shihab.