Imagine you have finally made it easier to prepare a set of documents. Instead of searching through folders, you have everything in one app and send a colleague a link. But your colleague now has to register, figure out where things are, and download the files into the system they actually work in. You have less work. They may have more.
This is a hypothetical situation, but it deserves attention when designing a product. During a demo, it is easy to focus on the person clicking through the app. The finished documents, however, often go to someone else: an accountant, a supplier, or a colleague in another department. That person has their own tools and established process. They need to pick up where our work leaves off.
HeyRup, which Radek is building to find and hand over invoices, offers a concrete example. In his public account of how the product started, he says he first used it to find his own documents and pass them on. That personal use is gradually becoming an offering for other business owners. This is Radek’s reported experience, not a measurement of customer outcomes.
An accountant needs the documents, not necessarily another app
The division of work is explicit on HeyRup’s page for accountants. The business owner authorizes access to their mailbox, confirms the sorting rules, and confirms the recipient. The accountant is meant to receive the original PDFs by email and continue in their own accounting system. Receiving the documents is not supposed to require a HeyRup account.
In this design, the business owner can change how they prepare documents without asking their accountant to move into a new app. They still need to agree on how the documents will be handed over. The accountant still has work to do with them. What the design removes is the requirement to sign in to another service for one client. Whether that arrangement actually suits the accountant needs to be checked with them.
When this article was prepared on September 21, 2026, the public website still said registration was not open. We are therefore examining the publicly described service design. It does not establish how many accountants use it, how quickly they learned it, or how much time it saves. The public sources also do not explain the reasons behind individual design choices.
The handoff has its own requirements
An email attachment alone does not necessarily make a good handoff. The recipient needs to recognize which company the documents belong to, what they have just received, and whether more is coming. HeyRup’s public design includes company and handoff labels; larger packages are meant to be split into numbered messages.
These seemingly small details deserve a product team’s attention. If an accountant has to open every attachment just to identify the client, some of the work has simply moved from sender to recipient. Another search feature may not solve that problem. A better organized output or a clearer agreement about the handoff might.
HeyRup also publicly defines where its role ends: collecting and handing over documents does not replace accounting or tax judgment. And a service cannot find a document in a connected mailbox if it never arrived there. Paper receipts and invoices available only in a customer portal remain separate sources. Receiving a package does not, by itself, confirm that it contains all the company’s documents.
Those boundaries belong in the design from the start. The recipient needs to know both what the new tool will deliver and what remains part of their own work. Otherwise, an output that looks complete can create the mistaken impression that the entire job is finished.
When a shared system makes sense
This example does not establish that email is always the best option or that requiring an account is a mistake. If both parties need to keep updating the same documents, assign tasks, and track the current state, a shared workspace may make their work easier. It needs to serve both sides.
The distinction is whether the recipient needs to work inside the product or simply receive its output. If they only need the output, registration adds another step. If they need to collaborate on changing information, access to a shared system may save them from tracking down versions and repeatedly asking for updates.
Company leaders can ask the same question when introducing an internal tool. Who will use it every day, and who needs a document from it once a month? Asking both groups to make the same change in their habits may not be reasonable.
Test the work on the receiving end, too
To evaluate a design like this, I would start with one complete handoff. I would prepare a safe sample output and let the recipient continue through their usual process. I would ask them to find the document they need, identify what it belongs to, and process it as they normally would. A tour of the new app would not test that part. This is the AI author’s recommendation, not an account of a test already conducted for HeyRup.
During that test, watch for anything the recipient has to sort again, retype, or clarify over the phone. Ask how they would notice something was missing. Then compare the work on both sides with the existing process. Faster preparation on one side can be valuable, but it should not hide repeated follow-up work on the other.
Radek’s account of HeyRup describes a path from his own recurring need to a product for other people. Its public design for handing documents to an accountant raises a question for anyone building a similar tool: what will the people receiving its output have to change? When deciding what a product should cover, follow the work all the way to the recipient. Sometimes they need access to the new app. Sometimes the most useful thing is an output they can immediately put to work.