Klaviyo vs Sailthru: Which Marketing Automation Is Better in 2026?
Compare pricing, features, integrations, verified reviews, AI capabilities, security, and customer satisfaction — side by side, with no marketing spin.
The Short Answer
Klaviyo vs Sailthru, in 15 seconds
Choose Klaviyo if…
- You want the lower entry price
- You need a genuinely free plan
- You want to trial before paying
- You depend on a broad integration ecosystem
Choose Sailthru if…
- You prefer Sailthru's approach and ecosystem
Head-to-Head Scorecard
How Klaviyo and Sailthru score
Klaviyo leads on 6 of 9 measured dimensions.
- Even
Customer Rating
Average score from verified user reviews
KlaviyoNo reviewsSailthruNo reviews - Even
Review Volume
Number of verified reviews — a proxy for adoption
Klaviyo0Sailthru0 - Klaviyo
Entry Pricing
Lowest published starting price (free plan = lowest)
Klaviyo$20/moSailthruCustom - Klaviyo
Free Access
Availability of a free plan and/or free trial
KlaviyoFree plan + trialSailthruPaid only - Klaviyo
Integrations
Number of listed third-party integrations
Klaviyo8Sailthru6 - Klaviyo
Features
Number of listed product capabilities
Klaviyo12Sailthru0 - Klaviyo
AI Features
Capabilities mentioning AI, automation or ML
Klaviyo2Sailthru— - Klaviyo
Security & Compliance
Number of listed compliance certifications
Klaviyo4Sailthru2 - Sailthru
Platforms & Deployment
Supported platforms and deployment options
Klaviyo2Sailthru4
Feature Comparison
Klaviyo vs Sailthru feature breakdown
Search or filter the full feature matrix — core features, AI, integrations, APIs, security and compliance.
Klaviyo
SailthruPricing Comparison
Klaviyo vs Sailthru pricing
Entry pricing, plan tiers and the cost factors that shape total cost of ownership.
Klaviyo
$20/mo to start- Up to 250 profiles
- 500 email sends/month
- 150 SMS/MMS credits
- Email support (60 days)
- Email campaigns & flows
- Segmentation & personalization
- A/B testing
- Built-in CDP
- Everything in Email
- SMS & MMS marketing
- Unified profiles
- SMS automation flows
- Custom volume
- Advanced deliverability
- Dedicated support
- Custom onboarding
Sailthru
Custom to start- Automation
- Segmentation
- Product and content recommendations
- Personalized email
- Everything in Growth
- Predictive personalization
- Advanced reporting
- Cross-channel journeys
Total cost of ownership factors
Beyond list price, factor in implementation, training, add-ons and per-seat scaling when estimating total cost of ownership.
Pros & Cons
Klaviyo vs Sailthru: strengths and trade-offs
Klaviyo
Pros
- Free plan available
- Free trial offered
- Broad integration ecosystem (8)
- Compliance: SOC 2 Type II, GDPR, CCPA
- Stronger AI / automation features
- Public API available
Cons
Sailthru
Pros
- Compliance: SOC 2, GDPR
- Public API available
Cons
- No free plan
- No free trial
- Pricing is quote-based (less transparent)
- Fewer native integrations than the alternative
Buyer Fit
Who should use Klaviyo vs Sailthru?
Startups
Klaviyo
Klaviyo keeps early-stage costs lowest with its entry tier.
Small businesses
Klaviyo
Klaviyo offers the most accessible pricing for lean teams.
Agencies
Klaviyo
Klaviyo connects to more tools for multi-client workflows.
Enterprises
Klaviyo
Klaviyo leads on compliance and breadth for complex needs.
Ecommerce
Klaviyo
Klaviyo integrates with more of the commerce stack.
SaaS companies
Klaviyo
Klaviyo is the more developer- and automation-friendly choice.
Integration overlap
Shared integrations (2)
Only in Klaviyo (6)
Only in Sailthru (4)
Keep Exploring
Other alternatives worth considering
Similar marketing automation products buyers compare alongside Klaviyo and Sailthru.
Ask SIA which solution fits your business
SIA, Saaskart's AI buying assistant, weighs Klaviyo and Sailthru against your team size, budget, integrations and compliance needs — then recommends the right fit and the questions to ask each vendor.
Get a personalised recommendationKlaviyo vs Sailthru — Frequently Asked Questions
What is the difference between Klaviyo and Sailthru?
Klaviyo and Sailthru are both Marketing Automation solutions. Klaviyo is rated 0.0/5 by 0 users, while Sailthru is rated 0.0/5 by 0 users. The main differences lie in pricing, features, and target audience.
Which is better, Klaviyo or Sailthru?
Based on user ratings, Klaviyo scores higher at 0.0/5. The best choice depends on your team size, budget, and specific requirements.
Which is cheaper, Klaviyo or Sailthru?
Klaviyo is the more affordable option, starting at $20/month.
Does Klaviyo or Sailthru have a free plan?
Klaviyo offers a free plan. Sailthru does not have a free tier but does offer a free trial.
Can I switch from Klaviyo to Sailthru?
Switching between Klaviyo and Sailthru is possible. Both support data export. Check integration compatibility and plan for data migration to minimise disruption to your team.
Who should use Klaviyo vs Sailthru?
Klaviyo is best suited for teams that prioritise enterprise features. Sailthru works well for teams needing advanced capabilities.
Our Verdict
The bottom line on Klaviyo vs Sailthru
Best Overall
Either
It's a tie balances user satisfaction and proven adoption.
Best for Startups
Klaviyo
Klaviyo has the friendliest entry point for new teams.
Best for Enterprise
Klaviyo
Klaviyo leads on compliance and feature breadth.
Best Value
Klaviyo
Klaviyo delivers the lowest cost to get started.
Best AI Features
Klaviyo
Klaviyo ships more AI and automation.
Highest Rated
Either
Both earn equal user ratings.