MVP Hackathon

QR Carrot


Project lead & Design in team of

1 UX & 1 UI


2.5 days


Figma, Miro, Notion

abstract project cover


Marco manages two coffee shops in Berlin. As a small business owner, he doesn’t have a marketing budget to acquire new customers. Therefore, he relies on returning customers to keep his business healthy. Currently, Marco manages his community on social media, where he likes to reward customers that posts about his coffee shop, by offering them a free drink on their next visit. However, the process is messy for Marco and is employees, and not trustworthy for the customers.

The coffee shops in Berlin Prenzlauer Berg and Pankow. Pictures from @KiezKaffeeKraft


Before starting the hackathon, Marco shared with me his idea to digitalize the process of issuing rewards through QR codes, in order to increase the convenience and efficiency. The technical requirement were tested prior with a developer.


How to issue single use QR codes that allow customers to easily redeem a free drink on their next visit, without affecting the businesses’ current workflow?


Our goal as a team for the hackathon was to launch an MVP that has limited functionalities, in order to test Marco’s idea with early adopters later on. Therefore, we focused on one specific use case for one target audience: “A small coffee shop owner manages his business by himself and employs short term contract waiters. He needs a quick and easy way to send individual QR codes coupons to his customer base on Instagram, once or twice a week.”

We created a complete solution based on the individual user journeys of the three audiences: business owner, customers and employees.

1 . The coffee shop owner issues a QR code on the app to send to the customer

2 . The customer receives an image to show to the coffee shop employees

3 . The coffee shop employees scan the image with an iPad and get redirected to a confirmation screen

Thank you for reading 👌🏼

© 2023 by Julia Marten-Deflache in Framer Sites
© 2023 by Julia Marten-Deflache in Framer Sites
© 2023 by Julia Marten-Deflache in Framer Sites