Klaviyo vs Acoustic
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Klaviyo starts at $20/mo and Acoustic starts at See pricing page. Check both pricing pages for current plans.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Email and SMS campaigns
- Automated flows
- Predictive analytics
- AI campaign builder
- Shopify integration
- Real-time behavioral tracking
- Acoustic AI recommendations
- Unified customer profile
- Email, SMS, WhatsApp and push
- No-code Signal Studio
| Feature | Klaviyo | Acoustic |
|---|---|---|
| Best for | Email and SMS marketing for ecommerce with AI agents | B2C engagement platform that times messages to real-time customer behavior |
| Category | Marketing | Marketing |
| Pricing model | Freemium | Paid |
| Starting price | $20/mo | See pricing page |
| Free plan | Yes | No |
| Made by | Klaviyo | Acoustic, L.P. |
| Based in | United States | United States |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Klaviyo starts at $20/mo and Acoustic starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
3 plans
Free
Free
- Up to 250 active profiles
- 500 email sends/month
- $5 of mobile messages/month
- Built-in reporting
Email
$20/mo
- Starting price, scales with profiles
- Email marketing and flows
Email and SMS
$35/mo
- Starting price, scales with profiles
- Email plus SMS/MMS credits
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Klaviyo
- Deep ecommerce data
- Strong automation
- Good AI features
- Costs climb with list size
- Overkill for non-ecommerce
Acoustic
- Acts on live behavior, not just past purchases
- Many messaging channels
- AI explains why it suggests a move
- Prices aren't shown on the pricing page
- Geared to larger B2C brands
- Setup needs tracking and data work
Which one should you choose?
Choose Klaviyo if you want:
- Deep ecommerce data
- Strong automation
- Good AI features
Watch out: costs climb with list size.
Choose Acoustic if you want:
- Acts on live behavior, not just past purchases
- Many messaging channels
- AI explains why it suggests a move
Watch out: prices aren't shown on the pricing page.
Klaviyo vs Acoustic FAQ
What is the difference between Klaviyo and Acoustic?
Klaviyo: Email and SMS marketing for ecommerce with AI agents. Acoustic: B2C engagement platform that times messages to real-time customer behavior. Both are marketing tools.
Is Klaviyo or Acoustic cheaper?
Klaviyo starts at $20/mo and Acoustic starts at See pricing page. Check both pricing pages for current plans.
Do Klaviyo and Acoustic have free plans?
Klaviyo: Yes. Acoustic: No.
Who makes Klaviyo?
Klaviyo is made by Klaviyo, based in United States.
Who makes Acoustic?
Acoustic is made by Acoustic, L.P., based in United States.
Which should I choose, Klaviyo or Acoustic?
Choose Klaviyo if you value deep ecommerce data and strong automation. Choose Acoustic if you value acts on live behavior, not just past purchases and many messaging channels.