MailerBot vs Postronomy
MailerBot
mailerbot.comPostronomy
postronomy.comSide by side
| Figure | MailerBot | Postronomy |
|---|---|---|
| Price from | $99/mo | $199/mo |
| Free plan | — | — |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| API | Yes | Yes |
| Plans published | 3 | 2 |
| Spec score · Direct Mail Automation Software | 8.7 (#4) | 7.3 (#19) |
| Integrations | The integrations page describes an MCP server for Claude, ChatGPT, Cursor, and other MCP-compatible clients, authenticated through OAuth 2.1. | The FAQ says CRM integration is available in most cases through a Zapier integration configured by support using an API key. |
| Product | MailerBot creates, personalizes, and sends postcards, letters, and invoices through an API or dashboard. | Postronomy describes itself as a platform for automating business direct mail and gifting. |
| Support | Launch includes community and email support with a stated 48-hour response, while Scale adds priority email and chat during business hours. | The plans include one-on-one live chat and Zoom support, and the FAQ says subscribers receive one-on-one onboarding and ongoing support. |
Plans
Postronomy
- Pro Premium - Self Service$199 a month
- Business - Concierge$499 a month
In their own words
MailerBot
MailerBot creates and sends physical postcards, letters, invoices, EDDM and custom print pieces through an API or dashboard. Users can design postcards, write letters in a rich text editor or upload print-ready PDFs. Designs support merge fields, links, QR codes and coupon codes with usage tracking. Contacts can be imported from CSV, checked against addresses and grouped into targeted lists. Campaign analytics track spend, volume and delivery rates, with date filters and report export. The REST API has more than 50 endpoints and supports JWT and API key authentication. Scale adds automated drip sequences, triggered sends and multi-touch flows. MailerBot says it prints, stamps and mails pieces, with delivery-status tracking; Launch includes USPS Intelligent Mail Barcode tracking on each piece. Scale costs $99/month, with letters priced at 69¢ for the first page plus 15¢ per additional page and postcards at 49¢. Command costs $399/month. The site presents the service for retail, nonprofits, home services, startups and digital nomads.
Postronomy
Postronomy has no write-up on Specifiction yet; its figures are above.