Postscript vs SMSPortal
Postscript
postscript.io
SMSPortal
smsportal.comSide by side
| Figure | Postscript | SMSPortal |
|---|---|---|
| Price from | $100/mo | $0.08/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Plans published | 5 | 6 |
| Spec score · SMS Marketing Software | 7.9 (#24) | 8.6 (#7) |
| Integrations | Postscript's integration directory groups connections into categories including ecommerce platforms, email, customer support, loyalty, reviews, analytics, and workflow automation. | Official platform integrations listed are Optimove, MoEngage, Adobe Campaigns, Plumb5, Zapier and RapidAPI. |
| Product | Postscript describes itself as an agentic retention marketing platform across SMS, RCS, email, and future channels. | SMSPortal describes itself as a cloud-based omnichannel messaging platform for business communications. |
| Support | Customer Experience Advocates provide live chat Monday–Friday from 6am PT to 5pm PT and email support; Professional and Enterprise plans include dedicated onboarding and priority support. | The pricing page lists live chat support as business-hours for Free and 24/7 for Standard and Enterprise, with agent calls during business hours across plans. |
Plans
Postscript
- StarterFree
- Growth$100 a month
- Professional$500 a month
- Postscript AI Plan$699 a month
- EnterprisePriced on request
SMSPortal
- FreeFree
- Standard$0.08 a month
- FreeFree
- Standard$0.08, paid once
- Standard$0.08, paid once
- EnterprisePriced on request
In their own words
Postscript
Postscript is an agentic retention marketing platform for ecommerce brands using SMS, RCS, email, and future channels. Marketing plans include a visual flow builder, automation templates, subscriber acquisition tools, segmentation, analytics, response management, and custom attribution windows. Its Agentic Context Platform stores brand and customer context so AI agents can act at individual subscriber level, and it is included with every plan at no extra cost. The AI Plan adds Brand Center controls for message tone and knowledge, Infinity Testing for message variants, and Shopper for personalized journeys. Integrations cover ecommerce, email, support, loyalty, reviews, analytics, and workflow automation. Professional includes API access, with documentation for the API, JavaScript SDK, and webhooks. The listed Starter plan is free with a $49 monthly minimum spend; other named plans run from $100 to $699 monthly, while Enterprise pricing is custom. A trial provides $100 credit for 30 days.