Sincerely
- Android app
- Not listed
- Free plan
- Yes
- Paid plans from
- $250/mo
- Runs on
- Web
Summary
Sincerely is B2B direct-mail software that uses CRM or CSV audiences to create personalized printed mail and measure campaigns against account-level holdout groups. It connects to Salesforce and HubSpot, syncing account, contact, opportunity-stage, and campaign-membership data; CSV import is also supported. The software drafts personalized writing from account research and attaches a source to each factual claim. Drafts need human approval before printing, and edits are versioned. Postcards and letters are available, while 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 sent for review. All plans include account-level holdouts, and Sincerely says five of eight campaign types measure lift against one. The free Audit plan supports imports, a mailability audit, brand designs, and draft editing, but cannot mail. Paid plans start at 250.00 USD per month; the Pilot costs 199.00 USD once. Campaigns pause when a plan reaches its monthly cap.
Who it is for
It suits B2B teams that want to send personalized postcards or letters to CRM or CSV audiences and measure campaigns using account-level holdouts. Teams should be prepared to approve drafts before printing.
What is good
- Connects with Salesforce and HubSpot.
- CSV audience import is supported.
- Address verification and correction are included on every plan.
- Draft edits are versioned.
- Plans include account-level holdouts.
What to know first
- The free Audit plan cannot mail.
- Handwritten notes and gifts are not live.
- Campaigns pause at the monthly cap.
- There is no free trial.
Verdict
Sincerely combines personalized direct mail with holdout-based campaign measurement and human approval before printing. Its free plan cannot send mail, and campaign volume is limited by each plan's monthly cap.
Sincerely plans and pricing
All plansCompared on direct mail automation software
- Free plan
- Yestrysincerely.com
- Paid from
- $250/motrysincerely.com
- Mail formats
- 4x6 postcards; 6x9 postcards; letterstrysincerely.com
- Personalization level
- one-to-onetrysincerely.com
- API access
- Notrysincerely.com
- CRM connections
- Salesforce; HubSpottrysincerely.com
- Address verification
- Yestrysincerely.com
- Delivery scope
- bothtrysincerely.com
Facts
- What it does
- Sincerely describes itself as software for B2B direct mail that uses CRM or CSV audiences, personalized printed pieces, and measurement against holdout groups.trysincerely.com · 4 Oct 2026
- Personalized writing
- The product generates personalized drafts from account research and pins each factual claim to a source.trysincerely.com · 4 Oct 2026
- Live mail formats
- Postcards and letters can be mailed today; handwritten notes and gifts are not live because their fulfillment adapters are not built.trysincerely.com · 4 Oct 2026
- Integrations
- Salesforce and HubSpot sync account, contact, opportunity-stage, and campaign-membership data, and CSV import is also supported.trysincerely.com · 4 Oct 2026
- Campaign measurement
- Every plan includes account-level holdouts, and the page says five of eight campaign types measure lift against a holdout.trysincerely.com · 4 Oct 2026
- Address checks
- Sincerely says address verification and correction are included on every plan, with low-confidence addresses routed to review.trysincerely.com · 4 Oct 2026
- Human approval
- Drafts require human approval before printing, and the product versions edits.trysincerely.com · 4 Oct 2026
- Security
- The privacy policy says data is encrypted in transit, access is scoped per workspace, and state-changing actions are written to an audit log.trysincerely.com · 4 Oct 2026
- Data use
- Sincerely says it does not sell personal information or use CRM data to train models or benefit another customer.trysincerely.com · 4 Oct 2026
- Mail providers
- Lob prints US postcards and letters, while a Canadian provider prints Canadian pieces; customers contract with neither vendor through Sincerely.trysincerely.com · 4 Oct 2026
- Billing limit
- When a plan reaches its monthly cap, live campaigns pause rather than print additional pieces.trysincerely.com · 4 Oct 2026
- Agent access
- Sincerely supports MCP clients through browser sign-in and OAuth, while actions that print or spend are not available to agents.trysincerely.com · 4 Oct 2026
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Sources
- trysincerely.com/terms· checked 4 Oct 2026
- trysincerely.com· checked 4 Oct 2026
- trysincerely.com/formats· checked 4 Oct 2026
- trysincerely.com/integrations· checked 4 Oct 2026
- trysincerely.com/campaigns· checked 4 Oct 2026
- trysincerely.com/pricing· checked 4 Oct 2026
- trysincerely.com/privacy· checked 4 Oct 2026
- trysincerely.com/agents· checked 4 Oct 2026