Trying to decide between Klaviyo and Attentive for your SMS marketing? You’re not alone. Both platforms promise powerful features, better customer engagement, and massive results, but which one actually lives up to the hype? We tested both platforms to find out. If you’re looking to make a smart choice for your SMS marketing, this guide has you covered.
We’ll explore:
- Standout features and unique strengths of each platform
- What users appreciate and what to consider before choosing
- Real feedback, comparisons, and which platform fits your needs
TL;DR
| Feature | TxtCart | Klaviyo | Attentive |
|---|---|---|---|
| Pricing | Starts at $29/mo | Starts at $60/mo | Custom pricing |
| Free Trial | Yes, 14-day trial | Yes | Yes |
| SMS Marketing Features |
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| Data Security & Compliance | Built-in TCPA & GDPR compliance | Built-in TCPA, CPPA & GDPR compliance | TCPA, CCPA, CTIA, GDPR, CASL, ADA compliant |
| Integrations | Shopify, Klaviyo, Alia, ChargeFlow, Zendrop and more | Shopify, Salesforce, Wix, Zapier and more | Shopify, Salesforce, Zendesk, Aftership and more |
| Customer Support & Community | World-class customer support, known for its responsiveness and fast replies | Friendly and helpful support, though some users note slower responses | Quick and reliable support, including White Glove service |
| Rating | 4.8/5 (297 reviews) | 4.6/5 (3,366 reviews) | 4.2/5 (52 reviews) |
Which One Should You Go With?
- Klaviyo: Great for brands already using email and looking to integrate SMS into the same platform. It offers strong automation, deep segmentation, and data-driven tools like predictive analytics. If you value control and detailed customer data, Klaviyo is a better option.
- Attentive: Best suited for larger businesses needing global SMS reach, white-glove onboarding, and deep personalization. If you’re after a premium platform with robust AI features and don’t mind the higher cost, Attentive could be a strong fit.
- TxtCart: This is perfect for Shopify brands that want to maximize ROI with less effort. TxtCart’s conversational AI engages like a real sales assistant, recovering carts, upselling, and boosting revenue. With a low $29/mo starting price, 10x ROI guarantee, and 24/7 customer support, it’s built to help stores grow with ease.
Klaviyo Overview

Klaviyo helps ecommerce businesses grow through email and SMS marketing. It’s known for using customer data to power personalized messages, smart automations, and detailed audience targeting. With user-friendly tools and strong integrations, Klaviyo makes it easy to send the right message at the right time, helping brands boost engagement and drive more revenue.
Key features
- Advanced automation: Set up flows based on customer behaviors, like cart abandonment or post-purchase follow-ups.
- Customer data insights: Track and use customer data to personalize content and improve the customer journey.
- Predictive analytics: Forecast customer lifetime value, churn risk, and expected next order date with AI-powered tools.
- Segmentation tools: Build detailed audience segments based on actions, preferences, and purchase history.
- Campaign performance tracking: Get real-time reports on open rates, click-through rates, and conversions for both email and SMS.
Pricing Starts at $60 for Both Email & SMS…
Klaviyo offers a free plan, with paid plans starting at $45/month for email and $60/month for the email + SMS bundle.
Attentive Overview

Attentive is an AI-powered SMS marketing platform trusted by ecommerce and retail brands. It offers advanced features like customizable sign-up forms, two-tap opt-ins, and strong integrations to boost customer engagement, conversions, and revenue.
Key features
- Two-tap sign-up: Attentive’s patented mobile opt-in makes it easy for users to subscribe, helping businesses grow their SMS list quickly.
- Personalized messages: Use AI to deliver SMS campaigns tailored to customer behaviors and preferences for better engagement and conversions.
- Advanced analytics: Get actionable insights through detailed reports to improve campaign performance and marketing strategy.
- Pre-built integrations: Easily connect with over 100 platforms across ecommerce, loyalty, and support tools to strengthen your tech stack.
- Global reach: Supports SMS and email marketing internationally, helping businesses reach customers and drive more revenue worldwide
Pricing Isn’t Publicly Available…
Attentive offers custom pricing, based on your contact list size and SMS usage. They offer a free trial, but the exact costs aren’t listed on their site. Sources like Flowium estimate plans start around $300/month, with $0.01 per SMS plus carrier fees of $0.0025–$0.0035 per message.
What Users Like About Klaviyo
- User-friendly: Many users say the platform is easy to navigate, even when building email and SMS campaigns for the first time.
- Strong analytics: The platform’s reports and dashboards are praised for helping marketers make quick, data-driven decisions.
- Deep segmentation: Users appreciate the ability to segment based on behavior, message activity, and purchase data to improve engagement.
Considerations before going with Klaviyo
- No refund policy: Many reviews highlight frustration with Klaviyo’s no-refund policy, even for quick cancellations after billing.
- Delayed customer support: Customers report slow or unhelpful responses from support, even on paid plans.
- Billing concerns: Some users faced surprise auto-upgrades and trouble managing or downgrading their plans.
Read More: Klaviyo Alternatives
What Users Like About Attentive
- Outstanding support: Users praise fast, friendly help, with White Glove onboarding and dedicated success managers.
- High customization: Reviews highlight powerful automation, segmentation, and personalized campaign options for better targeting.
- Smart features: Users value AI-powered suggestions, two-tap sign-up tech, and regular feature updates.
Considerations before going with Attentive
- Price vs. features: Some users feel Attentive is expensive for what it offers, with fewer advanced features compared to alternatives.
- Data issues: Limited data retention and trouble moving subscriber lists make managing customer data more difficult.
- Billing clarity: Users mention surprise charges, highlighting the need to keep a close eye on SMS spending.
Read More: The 7 Cost-Effective Attentive Alternatives for Shopify
TxtCart is the Favorite Among Users
Here’s a small glimpse of customer feedback from the $50M+ in revenue we’ve helped brands generate through TxtCart’s conversational SMS.
TxtCart is the #1 Klaviyo/Attentive Alternative
TxtCart’s current pricing uses simple monthly plans plus plan-based SMS/MMS rates, with no performance fees. New brands get a 14-day free trial with $500 in free credits. Current plans start at $29/month, with Growth at $79/month, Pro at $399/month, and Managed at $999/month for done-for-you SMS. Carrier fees are passed through at cost, with no contracts, setup fees, hidden fees, or performance fees.