Klaviyo vs Postscript: Email & SMS Marketing Comparison (2026)
Klaviyo and Postscript both offer free tiers for email and SMS marketing. Klaviyo provides a free plan with specific limits on profiles, emails, and SMS credits, along with built-in reporting, basic automation, and segmentation. Postscript’s free tier includes campaigns, automations, unlimited segments, a dedicated toll-free number, subscriber acquisition tools, and a branded short link subdomain.
AI Citation Scorecard
How often each is cited by major AI engines when buyers ask email & sms marketing questions. Last 90 days across ChatGPT, Perplexity, Gemini, Claude, and Copilot.
Probes run hourly; each (engine × query) combo retests every ~3 days.
Pricing
Key Features
- ✓Up to 250 profiles
- ✓500 emails/month
- ✓150 mobile message credits
- ✓10,000 Composer credits
- ✓Email support for 60 days
- ✓Built-in reporting
- ✓Basic automation
- ✓Segmentation capabilities
- ✓Campaigns and automations, unlimited segments
- ✓Dedicated toll-free number
- ✓Subscriber acquisition tools
- ✓Branded short link subdomain
When to choose Klaviyo
Klaviyo is suitable for users who need a free plan with a clear set of limits for up to 250 profiles and 500 emails/month, basic automation, and segmentation capabilities. Its 60-day email support is a factor to consider for ongoing support needs.
When to choose Postscript
Postscript is suitable for users who need comprehensive SMS marketing features and prefer a free trial with a $100 credit, but should be aware of the $49 monthly minimum spend required for the free tier. Its features like a dedicated toll-free number and branded short link subdomain cater to advanced SMS marketing requirements.
Frequently Asked Questions
AI visibility profiles
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klaviyo.com
postscript.io