Yuni Chun

FlashGrub

Clarifying a concept-dense product through iterative, user-driven app design.

Role

Product & Operations

Timeline

September 2025 – Present

Team

Solo contributor (report to CEO)

NDA Notice
Due to confidentiality agreements, detailed designs and implementation specifics are not shown. I’m happy to discuss my process, decision-making, and learnings in more detail in conversation.

Challenge

FlashGrub is a pre-launch mobile app that connects users to local restaurants and markets that have surplus food. It sells pre-made meals and unsold food at a discount, reducing waste and supporting families in accessing affordable meals.

As both a subscription service and a pay-as-you-go discount app, first-time users struggled with:

Ultimately, the core challenge was making a complex idea feel intuitive within just a few screens.

How Might We...

  • ...communicate a multi-part value proposition efficiently without overwhelming users?
  • ...introduce a subscription model without requiring users to fully understand the business mechanics behind it?
  • ...guide users toward meaningful actions while still allowing free exploration?

Qualitative Outcomes

  • The app became more informative and easier to understand for first-time users
  • User testing showed improved comprehension of FlashGrub’s concept
  • The subscription offering was communicated more clearly and confidently
  • Abstract ideas were translated into concrete, testable product decisions

My Role

As a Lead Product and Operations Intern, I work closely with the founder to iterate on the app experience and prepare it for launch, focusing on helping users understand FlashGrub’s value proposition and navigate a product that blends the functionality of traditional marketplace and subscription apps. I worked independently, owning the end-to-end iteration process while checking in weekly with the founder to review findings, challenge assumptions, and align on next steps. My process consists of:

Prototyping and feedback-driven iteration are the most central parts of my role.

Approach: Research, User Testing, Iteration

Designing for Users, Not Assumptions

A key shift in my process was learning to design based on observed user behavior rather than personal intuition.

Reflections & Learnings

Learning to Direct Without Overwhelming

One of the biggest lessons was learning how effective products subtly guide users toward next steps without making those paths feel forced.

Furthermore, continually engaging in feedback loops sharpened my product thinking — decisions were grounded in observed behavior, and iteration became more focused and defensible.