Mailform or paperplane: how to choose.
By Justin Winter · Updated October 6, 2026
The short answer
Mailform mails documents through USPS and also offers FedEx and UPS overnight, an API on every plan and office-suite add-ons. paperplane lists a lower first-page price and needs no account for one letter; Mailform covers overnight and mailroom use.
The math
The total for one send, all in.
| Send | paperplane |
|---|---|
| 1-page letter, First-Class | $0.99 |
| 5-page letter, First-Class | $1.99 |
| 1-page Certified Mail | $12.99 |
| 5-page Certified + Return Receipt | $15.99 |
Black and white, printing, envelope and postage included. Price the same page count in the other service's cart before you compare.
paperplane and Mailform, side by side
| paperplane | Mailform | |
|---|---|---|
| First page, First-Class | $0.99 all-in for a one-page First-Class letter | $2.99 for the first page; $0.49 per added page |
| Certified Mail | $12.99 all-in | Listed as $8.99 extra on top of the letter price |
| Overnight | USPS Priority from $24.99; no FedEx | FedEx Standard Overnight from $51.99 extra; UPS Next Day Air listed |
| API | REST and MCP; sandbox mode | API access on every plan, including Free |
| MCP server | Yes, at /api/mcp | MCP server not listed on mailform.io (as of October 2, 2026) |
| Best for | A single letter from a phone, or an agent sending after you approve. | Overnight delivery, W-2 and statement batches, and office-suite workflows. |
Where Mailform wins: FedEx and UPS overnight options. Mailroom and office use: Google Docs and Microsoft Office add-ins, bulk pricing calculator. Free plan with API access and unlimited users.
Where paperplane wins: No account for one letter. A lower listed first-page price. An MCP server with an approval step.
Nothing to migrate for a single letter. Open the send flow and mail the letter. For API users, quote first and send with the confirmation token.
Neither service is the right tool for everything. Competitor details were read from Mailform's own pages and last checked October 6, 2026.
Competitor details were read from their own pages and last checked October 6, 2026; they may change, so check their site for current pricing. Mailform is a trademark of its owner; no affiliation or endorsement implied. See also Certified Mail services compared.
Keep reading
Questions before you send
Why not pick the cheaper one?
If price is the only thing, do. A label service costs less when you own a printer. paperplane is for when you want the whole send done: no account, no printer, the exact pages previewed free, your address checked with USPS before you pay, one all-in price.
If something goes wrong, do I pay?
If we cannot mail the letter, the hold on your card is released and you are not charged. If a letter fails after your card is charged, you are refunded automatically and in full.