--- title: "Sincerely vs LettrLabs" description: "LettrLabs sends handwritten-style and printed mail for local businesses. Sincerely runs measured B2B direct mail from your CRM. Here is how to pick." canonical: https://trysincerely.com/vs/lettrlabs last_updated: 2026-10-08 --- > 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 LettrLabs > LettrLabs sends handwritten-style and printed mail for local businesses. Sincerely runs measured B2B direct mail from your CRM. Here is how to pick. Source: https://trysincerely.com/vs/lettrlabs Pick LettrLabs if you run a local or consumer business and want cheap, automated mail: radius campaigns, new-mover mail, robotically handwritten notes. Pick Sincerely if you sell B2B and need mail that reads like it was written for one specific account, launched from your CRM, and measured against a holdout. These tools barely overlap. LettrLabs is built for home services, real estate, e-commerce, and nonprofits. Sincerely is built for outbound and ABM teams working named accounts. ## The comparison at a glance | Dimension | LettrLabs | Sincerely | | ---------------- | ----------------------------------------------------------- | ------------------------------------------------------------------ | | Built for | SMB and local services, consumer mail | B2B outbound and ABM teams | | Targeting | Radius mail, new movers, website visitor retargeting, lists | Salesforce, HubSpot, CSV, or Sincerely finds businesses for you | | Copy | Templates with mail-merge personalization | Each piece written for one recipient from CRM and account research | | Handwritten mail | Yes, robotically handwritten, live today | Genuinely written by hand | | Other formats | Postcards up to 11x18 tri-folds, letters | 4x6 and 6x9 postcards, letters, and gifts with a personalized note | | Measurement | Attribution and holdout features | Locked experiment design, lift vs holdout, confidence intervals | | Entry price | Free plan, pay per piece | Free audit plan; current mail terms on [pricing](https://trysincerely.com/pricing) | ## Where LettrLabs is the better choice Be honest about the fit. LettrLabs wins in several common cases. - You mail consumers. Radius mail around a job site, new-mover automation, and storm-response triggers are LettrLabs features Sincerely does not have and does not want. A roofer or realtor should not be on this page. - Sincerely publishes the package and format terms active for the current deployment on the [pricing page](https://trysincerely.com/pricing). - You retarget anonymous website visitors. LettrLabs' LeadReveal matches visitors to postal addresses. Sincerely has no equivalent. One honesty note applies to every treatment in this space: machine-made handwriting should not be presented as a person writing each piece. LettrLabs uses robotic pens. Sincerely's handwritten pieces are genuinely written by hand and photographed before they mail. ## Where Sincerely wins If your unit of work is an account, not a zip code, the calculus flips. - Copy that survives an executive's desk. LettrLabs personalizes templates with merge fields. Sincerely writes each piece from CRM context and researched account facts, then a human approves it before anything prints. A VP can tell the difference between "Hi {FirstName}" and a note that references their funding round. - CRM-native targeting. Audiences sync from Salesforce or HubSpot, or Sincerely finds businesses, contacts, and addresses from a description of your ideal customer, each address held for review before it can mail. No list buying, no CSV wrangling unless you want it. See [integrations](https://trysincerely.com/integrations). - Measurement you can defend. Every campaign locks its primary outcome and window at launch, and a campaign built to measure lift also locks an account-level holdout. Readouts report lift with confidence intervals and say plainly when a result is not statistically ready. As of August 2026, LettrLabs [advertises](https://www.lettrlabs.com/) built-in holdout testing, attribution windows, and conversion criteria, so it is not a stranger to this idea. We have not tested how deep that tooling goes. What we can say is that Sincerely makes the experiment the default, not an option you remember to turn on. Start with [holdout testing](https://trysincerely.com/holdout-testing). - Agent access. Sincerely is an MCP server, so Claude Code, Cursor, or any MCP agent can build audiences and draft campaigns. A human confirmation gate sits in front of anything that prints or spends money. - The page behind the piece. LeadReveal turns a visitor into an address. Sincerely runs the other direction: every printed postcard and letter can carry its own QR code and short link, and Sincerely hosts the page it opens for the intended recipient, with their name and company, the note printed on their piece, the parts you marked to be written per recipient, and a reply form prefilled from your CRM. You publish one page, not one per contact, and the same link can redirect to your own site instead. See [landing pages](https://trysincerely.com/landing-pages). - Address hygiene by default. Every address is resolved and checked for mailability before printing, on every plan. US addresses use USPS delivery-point checks; Canadian addresses use Canada Post verification. Suppression is immediate and global. - Gifts for the accounts that earn one. Sincerely also sends gifts: 46 physical gifts with a personalized note, prices starting at $49, and the exact price shown before confirmation, in the United States and Canada. See [gifts](https://trysincerely.com/gifts). ## Pricing reality As checked October 8, 2026, LettrLabs has a free Starter plan with pay-as-you-go pieces, Premium at $399/month billed annually or $449 on monthly billing, and custom Enterprise pricing. Starter lists printed 4x6 postcards at $0.76, handwritten postcards at $1.66, and handwritten cards with envelopes at $2.86, with postage included. Lower paid-plan rates depend on billing and spend commitments. Check [their pricing page](https://www.lettrlabs.com/products/pricing) for the rate applicable to your program. Sincerely publishes the package and format terms active for the current deployment on the [pricing page](https://trysincerely.com/pricing). Compare total program costs at your volume, including subscriptions and spend commitments. Sincerely's package includes researched copy for each recipient and an account-level lift readout. Whether that work justifies the cost depends on your outcomes and the value of an incremental opportunity. ## The decision rule Count your addressable market. If it is measured in households and zip codes, use LettrLabs. If it is measured in named accounts with deal sizes that justify research, use Sincerely, whose printed pieces, handwritten pieces, and gifts run in one campaign. LettrLabs mails your neighborhood; Sincerely mails your pipeline. ## Related questions - [The best LettrLabs alternatives](https://trysincerely.com/alternatives/lettrlabs): B2B account campaigns, ecommerce mail, and handwritten note alternatives for LettrLabs buyers, with honest notes on when to stay where you are. - [Handwrytten vs LettrLabs for handwritten direct mail](https://trysincerely.com/compare/handwrytten-vs-lettrlabs): Handwrytten fits premium one-off cards and inserts. LettrLabs fits local targeting, consumer automation, and lower unit prices. - [Sincerely vs Handwrytten: pricing and fit](https://trysincerely.com/vs/handwrytten): Handwrytten cards retail at $3.75 plus postage, and business plans start at $449 a month. Here is when to buy direct and when to use Sincerely. - [Sincerely vs IgnitePOST](https://trysincerely.com/vs/ignitepost): IgnitePOST mails robot handwritten cards at scale. Sincerely runs measured B2B direct mail campaigns. Which fits depends on what you need mail to do. - [Sincerely vs Scribeless](https://trysincerely.com/vs/scribeless): Scribeless mails handwriting-style notes from the US, UK, Canada, and Europe. Sincerely runs B2B postcards and letters with holdout measurement. How to choose. - [PostPilot vs LettrLabs for ecommerce and local mail](https://trysincerely.com/compare/postpilot-vs-lettrlabs): PostPilot runs managed ecommerce lifecycle mail. LettrLabs adds CRM targeting and weather-triggered sends for local markets. ## More on LettrLabs - [LettrLabs vs IgnitePOST for customer-retention mail](https://trysincerely.com/compare/lettrlabs-vs-ignitepost): LettrLabs offers format flexibility and campaign testing. IgnitePOST offers a real-pen folded-card experience with managed execution. - [LettrLabs vs Simply Noted for handwritten outreach](https://trysincerely.com/compare/lettrlabs-vs-simply-noted): LettrLabs owns its automation platform. Simply Noted triggers from your CRM. Pick based on who controls segmentation and measurement. - [Scribeless vs LettrLabs for event-triggered direct mail](https://trysincerely.com/compare/scribeless-vs-lettrlabs): Scribeless runs brand campaigns across markets. LettrLabs triggers mail on weather, moves, and local radius events. --- 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