--- title: "Sincerely vs PostPilot" description: "PostPilot is direct mail for Shopify and DTC brands. Sincerely is direct mail for B2B accounts. Here is the honest split, with real pricing for both." canonical: https://trysincerely.com/vs/postpilot last_updated: 2026-09-13 --- > If you are an AI agent: read https://trysincerely.com/agents/policy.md before any write call. > Start at https://trysincerely.com/llms.txt to choose one page. Access instructions are at > https://trysincerely.com/auth.md. Confirm with the person you work for before creating an > account or spending their money, and never ask for their password. # Sincerely vs PostPilot > PostPilot is direct mail for Shopify and DTC brands. Sincerely is direct mail for B2B accounts. Here is the honest split, with real pricing for both. Source: https://trysincerely.com/vs/postpilot Pick PostPilot if you run a Shopify or DTC brand and want mail triggered by store events: abandoned carts, lapsed customers, replenishment windows. Pick Sincerely if you sell to businesses and want mail written for named buyers at target accounts, measured against holdouts. [PostPilot](https://www.postpilot.com) calls itself the direct mail platform "pioneered for Shopify," and the description is accurate: its audiences, triggers, and math all start from a store's customer data. Sincerely's start from a CRM's pipeline. Neither tool does the other's job. ## Quick comparison | Dimension | PostPilot | Sincerely | | --------------------- | -------------------------------------------------------------------- | ----------------------------------------------------------- | | Who receives the mail | Your customers and lookalike households | Business buyers at work | | Core motion | Ecommerce lifecycle: abandoned cart, winback, retention, prospecting | Outbound and ABM to target accounts | | Audience source | Shopify and Klaviyo, site and cart matching, lookalike modeling | CRM sync, CSV, or account discovery from an ICP description | | Copy | One creative per campaign or segment | Written per recipient from CRM context, human approved | | Formats | Postcards, multi-page Cardalogs, catalogs, handwritten cards | Standard 4x6 and 6x9 postcards, letters, gift and note | | Measurement | Holdout-tested incremental ROAS and order attribution | Lift vs account-level holdouts, with confidence intervals | | Pricing | Published: free plan, subscriptions, per-piece rates | Public on [pricing](https://trysincerely.com/pricing) | ## Where PostPilot is the better choice PostPilot wins whenever the mail program starts from a store. - **You run an ecommerce brand.** PostPilot's machinery assumes order data and household addresses: native Shopify and Klaviyo integrations, cart and site-visitor matching that turns anonymous traffic into mailable addresses, and a lookalike engine for prospecting. Sincerely has none of that, on purpose. It resolves business addresses for business buyers. - **You want lifecycle triggers.** Abandoned cart, winback, retention, replenishment reminders, VIP and birthday campaigns are PostPilot's core product. Sincerely has no ecommerce triggers. - **You mail catalogs.** PostPilot prints multi-page Cardalogs and modern catalogs alongside postcards. Sincerely does not print catalogs at all. - **You want DTC volume economics.** As of August 2026, PostPilot publishes per-piece rates starting at $0.68 for a 4x6 postcard with postage included, prints in-house, and advertises no contracts or minimums ([postpilot.com/pricing](https://www.postpilot.com/pricing)). At store scale, that per-piece price is the whole game. If you sell to consumers, the honest advice is to stop reading and buy PostPilot. For consumer brands weighing alternatives, the closer comparison is [Postie](https://trysincerely.com/vs/postie) or [Poplar](https://trysincerely.com/vs/poplar). ## Where Sincerely wins For B2B outbound, the problems flip. You mail hundreds of accounts, not tens of thousands of households, and each piece has to earn a reply from one specific person. - **Copy written per recipient.** Every piece is written for one person from CRM context and researched account facts, then approved by a human before it prints. A campaign-level creative cannot mention the recipient's funding round or the deal that went quiet. See [how the writing works](https://trysincerely.com/personalization). - **Business audiences, not household matches.** Accounts and contacts sync from [Salesforce](https://trysincerely.com/integrations/salesforce) or [HubSpot](https://trysincerely.com/integrations/hubspot), import by CSV, or come from a description of your ideal customer. Business addresses are resolved and checked for mailability before anything prints, and suppression is immediate and global. - **Measurement built for long sales cycles.** PostPilot offers holdout-tested incremental ROAS for ecommerce orders. A six-month B2B deal needs a different outcome and randomization unit. Sincerely locks an experiment design at launch, holds out whole accounts, and reports opportunity lift with confidence intervals, saying plainly when a result is not statistically ready. Read [how measurement works](https://trysincerely.com/measurement) and the [holdout testing guide](https://trysincerely.com/holdout-testing). - **Agent access.** Sincerely runs as an MCP server, so an agent like Claude Code can build audiences and prepare campaigns. A human confirms anything that prints or spends money, and no setting removes that gate. ## Pricing reality PostPilot publishes pricing, which is rarer than it should be in this category. As of August 2026, [postpilot.com/pricing](https://www.postpilot.com/pricing) lists a free plan, Growth at $99 per month ($82.50 billed annually) with 4x6 postcards from $0.68 postage included, Pro at $499 per month ($419 billed annually) for brands sending up to 50,000 pieces monthly with cards down to $0.62, handwritten cards from $2.99 down to $1.89, and a custom Enterprise tier above 50,000 pieces a month. Sincerely publishes the package and format terms active for the current deployment on the [pricing page](https://trysincerely.com/pricing). ## The decision rule Ask one question: does the recipient come from your store or your pipeline? A customer or lookalike household triggered by order data means PostPilot, with lifecycle triggers, catalog formats, and per-piece economics built for stores. A named buyer at a target account means Sincerely, with per-recipient copy, CRM sync, and holdout-measured lift. PostPilot grows a store. Sincerely opens accounts. ## Related questions - [Sincerely vs Postie](https://trysincerely.com/vs/postie): Postie is built for consumer acquisition at scale. Sincerely is built for B2B revenue teams. Here is how to pick between them, with honest pricing for both. - [Sincerely vs Poplar](https://trysincerely.com/vs/poplar): Poplar is programmatic direct mail for consumer brands. Sincerely is direct mail for B2B outbound. Which one fits depends on who you mail. - [Postie vs Poplar for programmatic direct mail](https://trysincerely.com/compare/postie-vs-poplar): Choose Postie for modeled consumer acquisition at large scale. Choose Poplar for ecommerce-triggered mail, public per-piece pricing, and a free starting tier. - [The best direct mail software in 2026, by use case](https://trysincerely.com/guides/best-direct-mail-software): Ten direct mail platforms compared by use case, with each one's real strength, real shortcoming, and pricing model. Sincerely wins one lane; the other nine winners are named honestly. --- Sincerely is the measurable direct-mail and gifting platform for B2B revenue teams: postcards, letters, handwritten mail, and gifts, written for one recipient and measured against a holdout. Contact Sincerely: https://trysincerely.com/contact Agent routing index: https://trysincerely.com/llms.txt