Letter Friend vs PostBridge
Letter Friend
letterfriend.comPostBridge
postbridge.aiSide by side
| Figure | Letter Friend | PostBridge |
|---|---|---|
| Price from | — | $39/mo |
| Free plan | — | — |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Plans published | 1 | 2 |
| Spec score · Direct Mail Automation Software | 8.0 (#7) | 7.9 (#10) |
| Integrations | Letter Friend describes an open API, email-to-mail integration, and Zapier connectivity. | The site lists integrations including Clio, QuickBooks, Salesforce, HubSpot, Zoho Books, Zoho Invoice, Harvest, Google Sheets, Airtable, Google Drive, OneDrive, Dropbox, SharePoint, Google Docs, and Canva. |
| Security and privacy | The privacy policy says it uses security measures to protect stored personal information and does not sell, trade, or rent users’ personal identification information. | PostBridge describes itself as GDPR compliant and SOC 2 aligned, and says documents and contact data are not sold or used to train AI models. |
| Support | The site offers a free consultation and lists phone support at 1-201-500-7766 and [email protected]. | The site lists support at [email protected]. |
Plans
PostBridge
- Business/Profile$39 a month
- Enterprise & high-volume mailPriced on request
In their own words
Letter Friend
Letter Friend has no write-up on Specifiction yet; its figures are above.
PostBridge
PostBridge helps teams print and mail business documents from PDFs or connected workflows while keeping tracking and mailing records together. Its workspace supports letters, postcards, stamps, shipping labels, tracked delivery, verified delivery, and address verification. A team reviews the quote, and a member must approve a job before it prints. Connections include Clio, QuickBooks, Salesforce, HubSpot, Zoho Books, Google Sheets, Airtable, Google Drive, OneDrive, Dropbox, SharePoint, Google Docs, and Canva. Postal automation is available through REST API endpoints, MCP tools, GPT Actions, SDKs, and agent workflows. PostBridge serves the United States, United Kingdom, and France through USPS, Royal Mail, and La Poste. It is available on web, iOS, Android, and inside ChatGPT. The Business/Profile plan costs $39 a month; it includes five licensed Team members, unlimited free viewers, and separately charged postal usage. An eligible workspace receives one 14-day first trial; a qualifying carrier-QR first trial lasts 28 days. Proof documents can be downloaded for seven years, while letter content and uploaded files have shorter retention periods.