Postscript vs SMSGlobal API
Postscript
postscript.io
SMSGlobal API
smsglobal.comSide by side
| Figure | Postscript | SMSGlobal API |
|---|---|---|
| Price from | $100/mo | — |
| Free plan | Yes | — |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Plans published | 5 | 1 |
| Spec score · SMS Marketing Software | 7.9 (#24) | 8.3 (#10) |
| Spec score · Business Text Messaging Software | 7.9 (#18) | 8.2 (#11) |
| Integrations | Postscript's integration directory groups connections into categories including ecommerce platforms, email, customer support, loyalty, reviews, analytics, and workflow automation. | SMSGlobal documentation describes integrations with HubSpot, Zapier and Salesforce. |
| 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 HTTP API page lists 24/7 support via SMSGlobal’s support team. |
Plans
Postscript
- StarterFree
- Growth$100 a month
- Professional$500 a month
- Postscript AI Plan$699 a month
- 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.
SMSGlobal API
SMSGlobal API has no write-up on Specifiction yet; its figures are above.