OuroPoster

The pain

Ouro Printer rents printers to grocery stores, butchers, bakeries and pharmacies, and wanted its customers to use the printer every week. The idea was to bundle a system for shops to make their own sale posters.

On the other side of the counter, the pain was familiar. A neighborhood shop owner changes deals every week, and the poster is either hand-made on poster board, crooked and hard to read from a distance, or depends on someone who sends the file on Monday with last week's prices, or eats an hour in a generic design app. Then there is the risk few people see: a sale with no end date or a product with no price per kg gets the store in trouble with consumer protection.

Who I designed it for

The shop owner, who uses a phone standing at the counter between customers, often one-handed. They know WhatsApp and their price list, not software. The system only works if they come back the next week, so I designed for the second poster, not just the first.

How I solved it

I built the whole project solo, from design to code to the server. Before designing, I went through the competitors the way a shop owner would, from sign-up to printing, and that changed the product's positioning before it reached any customer.

The flow has four steps: what to print, the list, the look, save and print. The preview is always in view, and what shows on screen is what comes out on paper. The screen only uses store words: sale, valid until, was/now, kg, buy/pay. And nothing is lost if the phone locks halfway through.

Every test round and every piece of feedback from Ouro Printer became a fix, usually the same day.

What the shop owner gets

They paste the list they already send on WhatsApp, pick the look and download a PDF ready for the store's printer. Price per kg or liter is calculated automatically, and before the download the app flags anything consumer protection requires that is missing. The same deal becomes a poster, flyer, banner, Story, Post and in-store TV screen, with themes for each section: butcher, produce, bakery, pharmacy.

Launch

I also designed the landing page and the Instagram launch grid, telling the same story: the shop owner's pain, how it works and the decision.

Result

OuroPoster is live. Ouro Printer offers it bundled with its printer rentals and as a subscription for shops that already have a printer. A shop owner who used to depend on poster board or on someone else gets a finished poster in under two minutes, straight from the phone.