Postscript
Shopify-native SMS marketing with platform fee plus per-message rates.
Postscript is an SMS marketing platform purpose-built for Shopify e-commerce. Pricing combines a monthly platform fee with per-message SMS and MMS rates that decline as you move up tiers. Starter has a $0 platform fee but a $49 minimum monthly spend, with SMS at $0.009 to $0.015 per message and MMS at $0.045 plus carrier fees. Growth at $100/month brings rates down to $0.008 to $0.010 per SMS and $0.03 per MMS. Professional at $500/month flattens SMS to $0.007 with MMS at $0.024, and unlocks API access, enhanced analytics, and removes Postscript branding. Enterprise is custom-quoted and adds an onboarding specialist, AI product recommendations, and data warehouse integration. Real spend is platform fee plus message volume, so total cost depends on list size and send frequency.
- Category
- SMS marketing
- Free plan
- No
- Plans
- 4
- Verified
Plans & pricing
Headline prices for each Postscript tier, captured from https://postscript.io/pricing on .
Starter
Included
- Campaigns
- Automations
- Unlimited segments
- Dedicated toll-free number
- 2 opt-in keywords
- Branded short links
Not on this plan
- Unlimited opt-in keywords
- Live chat and email support
- Enhanced analytics
- Priority support
- API access
- Removal of Postscript branding
Effective minimum: $49/month. Pure usage on top of zero platform fee.
Growth
Included
- Everything in Starter
- Unlimited opt-in keywords
- Live chat support
- Email support
Not on this plan
- Enhanced analytics
- Priority support
- API access
- Removal of Postscript branding
Professional
Most popular
Included
- Everything in Growth
- Enhanced analytics
- Priority support
- API access
- Removes Powered by Postscript branding
Not on this plan
- Onboarding specialist
- Personalized AI product recommendations
- Data warehouse integration
- Custom SMS rates
Enterprise
Included
- Everything in Professional
- Onboarding specialist
- Personalized AI product recommendations
- Priority support
- Data warehouse integration
- Custom SMS rates
Where Postscript earns its price
- Purpose-built for Shopify e-commerce SMS with deeper integrations than generic ESPs
- Per-message rates decline at higher tiers, giving real volume discounts
- Dedicated toll-free number on Starter is rare at this entry price
- API access on Professional enables custom flows and headless integrations
- Comprehensive automations beyond just one-off broadcasts
Where it falls short
- Platform fees stack on top of per-message costs, so real total can surprise budgeting
- Starter's $49 minimum spend is a soft floor, not a true free tier
- SMS-only positioning means you still need a separate ESP for email
- Enterprise tier required to unlock AI product recommendations
Best for
- Shopify e-commerce stores doing $1M+ GMV with active SMS list growth
- Brands graduating from Klaviyo SMS or Attentive on cost
- Teams wanting a Shopify-native SMS experience separate from email
Not for
- B2B companies, where SMS is not a standard channel
- Creators or info-product sellers whose per-message economics do not match
- Brands without an SMS-friendly Shopify segment to drive ROI
Alternatives to Postscript
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Common questions
- Does Postscript have a free plan?
- No. Postscript does not offer a permanent free tier.
- How much does Postscript cost?
- Postscript starts at Free. Plan prices captured April 30, 2026.
- What plans does Postscript offer?
- Postscript ships 4 plans: Starter, Growth, Professional, Enterprise. Each plan's anchor price, included features, and limits are listed above. Pricing reflects the snapshot captured on April 30, 2026.
- What are the alternatives to Postscript?
- We track 1 in-spine alternative to Postscript with verified pricing: omnisend. See the ranked /alternatives/postscript page for the full list with derived verdict tags.
Source: https://postscript.io/pricing · last verified · capture method: manual
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