--- title: Compare PostalForm with other online mailing services description: "PostalForm handles a single letter from document to USPS: upload a PDF or write in the browser, check the address and printable preview, and pay without creating an account. Start with USPS First-Class Mail, then add Certified Mail or Electronic Return Receipt when the letter needs those records. Guided forms and agent tools are available whenever you need them." seotitle: Compare PostalForm, LetterStream, Click2Mail, Mailform, Lob and PieterPost seo-description: Choose PostalForm for no-account letters, included PDF preview, address assistance and optional Certified Mail. Compare prices, setup and supported workflows. group: resources indexable: true llms: true nav: false schema: article eyebrow: Compare mailing services published: 2026-10-15 updated: 2026-10-15 path: /compare --- # Compare PostalForm with other online mailing services PostalForm handles a single letter from document to USPS: upload a PDF or write in the browser, check the address and printable preview, and pay without creating an account. Start with USPS First-Class Mail, then add Certified Mail or Electronic Return Receipt when the letter needs those records. Guided forms and agent tools are available whenever you need them. ## Why choose PostalForm for a single letter? PostalForm combines account-free checkout, a browser letter editor or PDF upload, address assistance, and a printable preview before payment. A single letter follows three tasks: prepare, address, and approve. USPS First-Class Mail is the starting service; Certified Mail, receipts, guided forms, and automation are available as needed. ## What you get with PostalForm | Your priority | PostalForm includes | Start here | | --------------------------------------- | -------------------------------------------------------------------------------------- | --------------------------------------- | | Mail one letter without setup | No account or minimum batch; browser editor or PDF upload | [Send one letter](/send-letter-online) | | Check the document before paying | Printable PDF preview and the complete order quote | [Upload a PDF](/mail-pdf-online) | | Reduce address-entry mistakes | Loqate-backed lookup and verification for selected suggestions | [Prepare a letter](/send-letter-online) | | Choose the evidence your letter needs | USPS First-Class Mail, eligible Certified Mail, and optional Electronic Return Receipt | [Compare pricing and proof](/pricing) | | Prepare the document as well as mail it | Guided forms and published machine-fillable form schemas | [Find a form](/forms) | | Send from an assistant | MCP tools that prepare a reviewable draft and hosted checkout | [Connect an agent](/mcp) | ## Compare by the job | Service | Useful starting point | Account and order context | Detailed comparison | | ------------ | --------------------------------------------------------------------------------- | --------------------------------------------------------------------------------- | ----------------------------------------------------------------- | | PostalForm | One-letter checkout with PDF review, address assistance and optional guided forms | No account required for the ordinary single-letter checkout | [Full-disclosure pricing](/pricing) | | LetterStream | An account-based business mailing workflow | Free account; no minimum quantity advertised | [PostalForm vs LetterStream](/compare/postalform-vs-letterstream) | | Click2Mail | Broad print formats and mailroom integrations | No minimum volume or subscription fees advertised; product workflows vary | [PostalForm vs Click2Mail](/compare/postalform-vs-click2mail) | | Mailform | PDF mailing and business software integrations | Single-recipient quick start advertises no signup; API requires an account | [PostalForm vs Mailform](/compare/postalform-vs-mailform) | | Lob | Building mailing into an application | Developer plan has no platform subscription fee; printing and postage are charged | [PostalForm vs Lob](/compare/postalform-vs-lob) | | PieterPost | Browser letters, postcards, API, or MCP | Basic letters and public MCP support account-free hosted payment | [PostalForm vs PieterPost](/compare/postalform-vs-pieterpost) | Each comparison shows where PostalForm fits, where another service may suit the job, and which official sources support the differences. ## The single-letter path to checkout | Task group | PostalForm PDF upload | PostalForm browser letter | | ----------------------- | ----------------------------------------------------------------------- | ----------------------------------------------------------------------- | | 1. Prepare the document | Upload the finished PDF and inspect its pages | Write the letter and inspect the generated PDF | | 2. Add mailing details | Enter sender and recipient addresses; choose print and delivery options | Enter sender and recipient addresses; choose print and delivery options | | 3. Review and pay | Confirm the preview, addresses and full quote, then pay | Confirm the preview, addresses and full quote, then pay | The three task groups work for one letter without setting up a campaign or account. They are not measured click counts or completion times. Address validation helps check the entered address; confirm the intended recipient and unit number before payment. ## Delivery speed and proof matrix | PostalForm option | Use when | Evidence to expect | Timing distinction | | ------------------------------------- | ---------------------------------------------------------------- | ------------------------------------------------------------- | ------------------------------------------------------------------------- | | USPS First-Class Mail | Ordinary correspondence without a signature requirement | Available order and carrier updates; no recipient signature | Printing and handoff precede carrier transit; see the checkout estimate | | Certified Mail | Mailing and delivery tracking matter for an eligible U.S. letter | Certified tracking and delivery or attempted-delivery events | Certified is a proof service, not an express upgrade | | Certified + Electronic Return Receipt | A separate electronic signature record is needed | Certified tracking plus the electronic receipt when available | Receipt availability follows the carrier's signature process | | Express with signature | Faster eligible service and a recipient signature are needed | Tracking and signature records for the selected service | Review production cutoff and the actual carrier/service shown at checkout | An attempted-delivery scan is not completed delivery. Mailing evidence does not itself establish that a notice satisfies a court, statute, or contract. [Delivery estimates and stages](/delivery-times) explain the distinction between payment, preparation, handoff, and carrier transit. ## Compare prices on the same basis Use the same document pages, address/cover-sheet treatment, color, simplex or duplex setting, envelope, destination, service, receipt option, quantity, and applicable tax. A stamp price excludes printing and preparation. A Certified price without Electronic Return Receipt is not the same product as a price including it. PostalForm's [canonical pricing matrix](/pricing) explains the line items. Use the [calculator](/pricing-calculator) for estimates and the final checkout quote for the actual order. Competitor calculators and account quotes may differ from advertised starting prices. For a one-page black-and-white U.S. document plus its inserted address page, PostalForm starts at $3.40 for USPS First-Class Mail, $11.40 with Certified Mail, or $14.40 with Certified Mail and Electronic Return Receipt. Color, larger packets, destinations and alternate fulfillment routes can change the quote; the canonical matrix defines these examples. ## Which mailing option and proof should you choose? PostalForm offers U.S. letter mailing with different delivery and proof options. First-Class suits routine correspondence; Certified Mail adds mailing and delivery records, and Electronic Return Receipt adds a downloadable signature record. Expedited delivery prioritizes speed. Review the destination, estimated dates, total price, and required proof before paying. | Mailing option | Delivery speed | Proof | Use when | Avoid when | | --- | --- | --- | --- | --- | | USPS First-Class Mail | First-Class Mail delivery estimate shown before payment. | Available processing scans; no recipient signature or Certified Mail receipt. | Routine letters when a signed delivery record is unnecessary. | Your instructions require Certified Mail, a signature, or a deadline this estimate cannot meet. | | Certified Mail | First-Class delivery speed; certification does not make delivery faster. | USPS mailing and delivery/attempt tracking; no Electronic Return Receipt unless added. | You need a recorded mailing and delivery or attempted-delivery status. | You need a downloadable signature record or faster delivery. | | Certified Mail + Electronic Return Receipt | First-Class delivery speed; signature collection may require redelivery or pickup. | Certified Mail records plus a downloadable USPS signature record when available. | Your instructions call for Certified Mail with Return Receipt or you need the signature record. | Your recipient requires an original enclosure, personal service, or another submission method. | | Expedited / Express with signature | Faster estimated delivery range shown at checkout; production cutoff and destination apply. | Carrier tracking and signature option; this is separate from Certified Mail and ERR. | Speed and signature matter and checkout offers the service for your destination. | A rule specifically requires Certified Mail or the displayed estimate misses your deadline. | Availability and delivery estimates depend on the document and destination. Mailing proof does not establish that a recipient accepted a filing or that legal service requirements were met. [Review delivery estimates](/delivery-times) and [full pricing](/pricing). ## Related - [Research and downloadable datasets](/research) - [Send a letter online](/send-letter-online) - [Mail a PDF online](/mail-pdf-online) - [Guided forms](/forms) - [Developer and agent documentation](/developers) ## Ready to send it? [Send one letter](/send-letter-online)