CampaignHQ vs Postscript
CampaignHQ
campaignhq.co
Postscript
postscript.ioSide by side
| Figure | CampaignHQ | Postscript |
|---|---|---|
| Price from | — | $100/mo |
| Free plan | — | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Plans published | 1 | 5 |
| Spec score · SMS Marketing Software | 8.6 (#6) | 7.9 (#24) |
| Audience | CampaignHQ says it serves teams running customer messaging across WhatsApp, email, or SMS, including e-commerce, EdTech, travel, fintech, and SaaS businesses. | Postscript says it helps ecommerce brands design and operate SMS programs that engage customers and drive revenue. |
| Integrations | The site lists Google Sheets, Shopify, and AWS Connect as integrations, and links to API documentation. | Postscript's integration directory groups connections into categories including ecommerce platforms, email, customer support, loyalty, reviews, analytics, and workflow automation. |
| Product | CampaignHQ combines SMS, WhatsApp, and email marketing in one workspace with shared contacts, CRM, automation, and analytics. | Postscript describes itself as an agentic retention marketing platform across SMS, RCS, email, and future channels. |
| Support | CampaignHQ describes its setup, template, and deliverability help as founder-led, with a stated founder-support reply time of under 24 hours. | 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. |
| Trial | CampaignHQ offers a 7-day free trial with no credit card required. | Postscript says a free trial includes $100 in credit usable during the first 30 days, after which or when exhausted additional messages are charged at the Free package rate unless another package is selected. |
Plans
Postscript
- StarterFree
- Growth$100 a month
- Professional$500 a month
- Postscript AI Plan$699 a month
- EnterprisePriced on request
In their own words
CampaignHQ
CampaignHQ combines SMS, WhatsApp, and email marketing in one workspace, with shared contacts, CRM, automation, and analytics. SMS campaigns can target audience segments, personalize messages, include tracked short links, and schedule delivery. Automated flows support event triggers, delays, conditions, branching, conversion suppression, and real-time analytics. A visual journey builder links SMS with WhatsApp and email, while shared contact history and analytics connect activity across channels. The service also supports transactional messages such as order and shipping updates, OTPs, appointment reminders, and payment receipts. For India promotional sends, it supports TRAI DLT-registered sender IDs and templates and filters NCPR/DND numbers; STOP/START opt-outs are automatic. SMS is billed per message, with rates varying by message category, volume, and operator. The listed note says pricing starts at ₹0.25; workspace rates are shown, and high-volume teams can negotiate custom pricing. A seven-day trial requires no credit card. CampaignHQ is available on Android, iOS, web, and API.
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.