Handwrytten vs MailStream
Handwrytten
handwrytten.com
MailStream
mailstream.appSide by side
| Figure | Handwrytten | MailStream |
|---|---|---|
| Price from | $100/mo | — |
| Free plan | — | — |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Plans published | 7 | 0 |
| Spec score · Direct Mail Automation Software | 7.9 (#9) | 7.3 (#18) |
| Integrations | The integration page describes Salesforce, HubSpot, Zapier, Make, and a documented JSON API; the company page also lists CDK Global and Dealervault. | The integrations page describes Planning Center as available and lists several others, including Shopify, Zapier, Make, and n8n, as coming soon. |
| Security | Handwrytten states it maintains a SOC 2 Type II compliance program covering Security, Confidentiality, and Availability. | The security page states that API traffic uses TLS 1.2+, customer data and artwork use AES-256 encryption at rest, and PII is access-controlled and purged on set retention schedules. |
| Support | The company lists [email protected] and phone number +1 (888) 284-5197. | The security page says MailStream will share SOC 2 reports, complete security questionnaires, and arrange calls with its security team. |
Plans
Handwrytten
- Silver$100 a month
- Gold$200 a month
- Platinum$382 a month
- AgencyPrice not published
- ElitePrice not published
- EnterprisePrice not published
- ProPrice not published
In their own words
Handwrytten
Handwrytten has no write-up on Specifiction yet; its figures are above.
MailStream
MailStream provides a self-serve platform, REST API, and MCP server for sending physical postcards and letters domestically. Postcards are offered in 4×6, 6×9, and 6×11 inch sizes, while letters use HTML templates or uploaded PDFs in white #10 double-window envelopes. A browser HTML and CSS editor supports personalized designs, reusable templates, and print proofs. Variable fields can add names, offer codes, QR links, account numbers, and balances. MailStream says it CASS-verifies addresses before printing and flags invalid or incomplete entries. USPS Intelligent Mail barcodes expose status through the dashboard, API, or webhooks. Printing and USPS handoff are listed at 1 to 2 business days, for campaigns targeting 10 to 100,000 addresses. Integrations include Shopify, Zapier, Make, n8n, and HTTP tools. The hosted MCP server lists 27 tools. A free plan is available; paid access starts at $99/mo. Security features include TLS 1.2 or higher, AES-256 at-rest encryption, annual SOC 2 Type 2 audits, and HIPAA handling with BAAs.