Growmail vs Sincerely

Growmail provides print and direct-mail services for businesses sending postcards, brochures, flyers, and letter mailers to selected audiences. Targeting can use neighborhood, ZIP code, route, demographics, income, or interests. Products include Every Door Direct Mail, targeted direct mail, and Discount Zone mailers, with QR-code and call-tracking add-ons for campaign measurement. The Direct Mail Manager API syncs customer data, personalizes postcards, and triggers sends from customer actions. Listed connections include Salesforce, Shopify, Intuit, Capsule, Planning Center, and Zapier; other CRMs can connect through webhooks or API calls. Direct Mail Manager states that it has no batching or minimums and guarantees mailing within 48 hours. Most campaigns are produced and mailed within 5–7 business days after proof approval, and every order includes a digital proof requiring approval. Growmail mails across the continental United States, Hawaii, Alaska, Puerto Rico, and the U.S. Virgin Islands. Pricing is on request, with a New Mover Direct Mail option at $69.95, paid once for a minimum of 100 mailers.

Sincerely is web software for B2B direct-mail campaigns using CRM or CSV audiences, personalized printed pieces, and measurement against account-level holdout groups. Salesforce and HubSpot sync account, contact, opportunity-stage, and campaign-membership data, and CSV import is supported. The product drafts personalized writing from account research and links each factual claim to a source. Drafts require human approval before printing, and edits are versioned. Postcards and letters can be mailed; handwritten notes and gifts are not live because their fulfillment adapters are not built. Address verification and correction are included on every plan, with low-confidence addresses routed for review. Every plan includes account-level holdouts, and Sincerely says five of eight campaign types measure lift against a holdout. When a plan reaches its monthly cap, live campaigns pause rather than print additional pieces. The free Audit plan supports imports, a mailability audit, brand designs, and draft editing, but cannot mail. Paid plans start at $250 a month; Pilot is 199.00 USD once.