DocuPost vs thanks.io

DocuPost lets users upload or compose documents online and have letters, postcards, and checks printed and mailed. Letters can be sent individually or in bulk, in black-and-white or color and single- or double-sided, with mail-merge tokens. The letter service accepts documents up to 500 pages. Mailing options include USPS First Class, Standard Class, international mail, Certified Mail, return receipts, and Priority Mail Express, described as arriving in as little as 1–2 days. Tracking options include USPS Tracking, Certified Mail, Priority Mail, and return receipts. DocuPost describes its letter service as HIPAA-compliant with a signed BAA, while its privacy policy says it cannot guarantee the safety or security of personal information. Listed integrations include Zapier, Clio, FileVine, HubSpot, QuickBooks Online, Xero, Google Docs, and a developer API. The Free plan has no send limits but charges per mailpiece, includes DocuPost branding on cover letters, and retains documents for 90 days. Premium costs $9.95 a month; Enterprise costs $99.95 a month.

thanks.io automates direct mail campaigns for postcards, letters, notecards, gift cards and MagnaCards. Sending is available through its dashboard, REST API, MCP server or integrations. Supported formats include postcards in 4x6, 6x9 and 6x11 sizes, windowed or windowless letters, folded 5x4 notecards, branded gift cards and 6x9 MagnaCards. Campaigns can run as drips, birthday or anniversary sends, holidays, recurring mail, Neighbor Blast radius mailings or paced evenFLOW sends. Recipients can have unique QR codes with scan analytics, available on every plan. A digital handwriting engine uses fonts, AI Fonts and optional Realism Mode; it does not use real pens or human handwriters. ThanksAI Studio can generate campaign designs from plain-English prompts, alongside per-recipient AI copy and dynamic images. Developer tools include REST API v2, webhooks, OAuth2, personal access tokens and MCP servers. Pay as you go is $0/month and includes full API access; Business is $49/month, Professional is $199/month, and Enterprise pricing is custom. Gift card sends require Business, Professional or Enterprise, and postage-included per-piece charges may apply in addition to subscriptions.