Customer.io vs Postscript Pricing (2026)
How do these two stack up on price? Here's what each one costs, what you get, and where the value sits.
| Customer.io | Postscript | |
|---|---|---|
| Starts at | $100/mo | $100/mo |
| Number of plans | 3 | 4 |
| Free plan | — | |
| Free trial | — | |
| Pricing model | usage-based | usage-based |
Essentials
- 5k profiles (people + objects)
- AI Agent with core execution skills
- 1 million emails per month
- 2 object types
- Visual workflow builder
- LLM actions with 100K credit sample
- Email and community support
- Basic data integrations
Premium
- Custom profile volume & pricing
- Custom email volume & pricing
- 10 object types
- Elevated Agent limits + custom skills
- Daily Routines (scheduled tasks)
- Premium chat & email support
- 90-day onboarding support
- HIPAA Compliance*
- Premium data integrations
Enterprise
- Our best pricing on profile & email volume
- Custom Agent limits + execution skills
- Priority technical support
- Migration support*
- Dedicated Customer Success Manager*
- Dedicated hardware
- Audit logging & data governance
- Dedicated Technical Implementation Specialist*
- Shared Slack channel*
Starter
- Campaigns and automations, and unlimited segments
- Dedicated toll-free number
- Subscriber acquisition tools, with 2 opt-in Keywords
- Branded short link subdomain
Growth
- Unlimited opt-in Keywords
- Live chat and email support
Professional
Popular- Enhanced Analytics
- Priority live chat/email support
- API access for custom integrations
- "Powered by Postscript" removed from opt-in
Enterprise
- Onboarding Launch Specialist
- Send personalized messages with custom product recommendations
- Priority live chat support
- Data Warehouse Push
Customer.io vs Postscript FAQ
- Which one is cheaper?
- They both start at the same price — $100/mo. The difference is in what you get at each tier.
- Can I use either one for free?
- Postscript has a free plan. Customer.io doesn't — you'll need to pay from day one.
- How do they charge?
- Both use a usage-based model, so the comparison is straightforward — it comes down to features and limits at each price point.
- Which one is a better deal?
- Depends on what you need. Customer.io: They're positioned mid-to-upper market for marketing automation — not trying to compete with Mailchimp on price, but undercutting Braze or Iterable on entry cost while targeting the same product-led growth companies. The $100 floor is accessible, but the annual Premium commitment signals they're really after funded startups and scaling SaaS teams. Postscript: Postscript sits in the mid-to-premium range of the SMS marketing space, competitive with Attentive and Klaviyo SMS, and it's clearly chasing DTC/Shopify brands that are already sending enough volume to care about per-message economics. It's not trying to win the hobbyist or ultra-low-volume crowd — the $49 minimum on the 'free' tier filters those out fast.
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