Stannp, Docmail, Paperplanes, Lob and Rockkt are not competitors. They do three different jobs, and buying the wrong one is why most direct mail programmes die after a single campaign.
Declared interest. Rockkt is one of the five. This page has no price table because quotes in this category are volume dependent and the comparison sites that appear to list prices are mostly out of date. Ours are public and on our pricing page.
Three jobs, three kinds of software
Thousands of identical letters from one data file, at the lowest cost per piece.
Who does it: Stannp, Docmail, Paperplanes
Job twoThe triggered sendA system posts a letter when something happens, like a trial ending.
Who does it: Lob
Job threeOne prospect at a timeAddress found, a letter written for one person, a page made for them, and a reply you can track.
Who does it: Rockkt
Thousands of pieces, one design, a data file, and the goal is the lowest sensible cost per piece with decent print. This is a print and postage problem, and UK mailing houses are extremely good at it. Stannp, Docmail and Paperplanes all live here. If this is your job, stop reading comparison pages and get three quotes.
A system sends a letter when something happens: a trial expires, a basket is abandoned, a customer hits a milestone. What matters is the API, the webhooks, address verification and templates you can version like code. Lob is the best known name for this shape of problem. If your buyer is an engineer, this is your category.
A rep has a good call, or spots the right person on LinkedIn, and wants something physical in front of them this week. Nobody has a clean address file. The letter has to be about that one person. And somebody needs to know whether it worked. This is a sales tool, not a print job, and it is what Rockkt is for.
No file to upload and no address to hunt for. One person, one letter, and you know what happened next.
On LinkedIn or Sales Navigator, click Rockkt One. It reads who they are and where they work.
Rockkt finds and checks their office address from the company and location. Nobody asks them for it.
Your saved letter, envelope and page, ready in two clicks. See Playbooks.
AI writes the letter from their profile, in your voice. You read it and change anything.
On Studio you print and post it. On Managed we print, stamp and post it, with a gift if you like.
A tap or a scan opens a page made for them, and you see it in Rockkt the moment it happens.
Write your own letter or start from a Playbook. Choose a printed letter or a gift with a letter, a handwriting style or a modern font, and add a QR code or NFC sticker that tells you when it is scanned or tapped.
The mistake we see most. A team buys a mailing house to do job three, discovers that everything except the printing is now manual, and quietly stops after one campaign. The printing was never the hard part. Finding the address and knowing what happened next is the hard part.
Which job are you hiring for?
Four quick questions. The answer tells you which kind of software fits, and where Rockkt comes in.
That list is short, and it is the most useful thing on this page.
Address found, letter written, page built, response tracked. Studio Free is free, by invitation, and needs no card.