kitio.aiKlaviyo vs PLG OS
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Klaviyo has the lower starting price: about $20 a month, against $49 for PLG OS.
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
- Onboarding flows
- In-app user assistance
- Feedback surveys
- Loyalty and gamification
- Audience segmentation
- Feature flags
| Feature | Klaviyo | PLG OS |
|---|---|---|
| Best for | Email and SMS marketing for ecommerce with AI agents | AI-built in-app onboarding, surveys and loyalty components |
| Category | Marketing | Marketing |
| Pricing model | Freemium | Freemium |
| Starting price | $20/mo | $49/mo |
| Free plan | Yes | Yes |
| Made by | Klaviyo | Questera |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Klaviyo has the lower starting price: about $20 a month, against $49 for PLG OS.
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
4 plans
Free
Free
- 100 tracked users
- 1 component
- 1 integration
- Campaign analytics
Starter
$49/mo
- 1,000 tracked users
- 2 components
- 2 integrations
- API support
Growth
$149/mo
- 3,000 tracked users
- 5 components
- Segmentation and feature flags
Scale
Contact sales
- Custom tracked users
- Unlimited components
- UI variants
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
PLG OS
- Free tier to test
- Quick SDK integration
- Covers onboarding to loyalty
- Free tier allows one component
- Limits based on monthly tracked users
- Scale pricing needs a conversation
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 PLG OS if you want:
- Free tier to test
- Quick SDK integration
- Covers onboarding to loyalty
Watch out: free tier allows one component.
Klaviyo vs PLG OS FAQ
What is the difference between Klaviyo and PLG OS?
Klaviyo: Email and SMS marketing for ecommerce with AI agents. PLG OS: AI-built in-app onboarding, surveys and loyalty components. Both are marketing tools.
Is Klaviyo or PLG OS cheaper?
Klaviyo has the lower starting price: about $20 a month, against $49 for PLG OS.
Do Klaviyo and PLG OS have free plans?
Klaviyo: Yes. PLG OS: Yes.
Who makes Klaviyo?
Klaviyo is made by Klaviyo, based in United States.
Who makes PLG OS?
PLG OS is made by Questera.
Which should I choose, Klaviyo or PLG OS?
Choose Klaviyo if you value deep ecommerce data and strong automation. Choose PLG OS if you value free tier to test and quick sdk integration.