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Hostr is an app that helps people manage, organize, and plan social events. It is designed for people who love to socialize but just don’t have the time to plan hangouts. Hostr provides a collection of powerful planning resources such as guest invitation management, flexible scheduling, local shopping options and navigation, and a comprehensive to-do list feature.

My Tasks

User Interview, User Flows, Personas, User Interface, Prototype, Usability Testing.

My Roles

UX Researcher
UI Designer
Collaborated with a
graphic designer

Design Process

Primary Research

User Interviews, Conclusions

To understand user needs, I interviewed six people to define essential features for the app. Each interview was about 15–20 minutes, and the participants’ ages ranged from 24 to 40 years old. After the interview, I came to the conclusion that there are four primary user needs:

Friend Invitation

There is a need to find invitations to friends and keep track of guest lists: who can come or who will bring an extra person. It is nice for the “coming late” notice, party notification, and reminders.

Stay in a budget

Some users want to plan groceries according to their budgets. It is helpful to be able to estimate the total groceries cost.

Time Saving

It is frustrating process to find a market that has all the necessary ingredients. There is a need for a shopping map that can navigate users to nearest stores.

A list maker

Users find it overwhelming to keep track of their to-do’s. A list maker will help users easily organize and edit potential grocery items. It also cooperative with staying under a buget.

UX Strategy

From the interview, the app’s vision was developed according to the 5W+H method: who, what, where, when, why, and how.


Three user personas helped inform the project brief.

User Journey

A detailed user journey brought all the project needs together.

User Flow

A sequence that details the steps in the user’s opening the app and finishing up their planning.

Design & Prototype

Paper Prototype

After sketching, I created a rapid paper prototype to test usability. I tested and got feedback from three people.


After revising the app, I created the wireframe on Figma, and tested it again with three people.


Here is example of screen users will go through when they create guest invitations.
Users can import friend lists from Facebook, mobile contact, email, or other apps.
Guest will response to their invitation by saying “Y”, “N”, or “+ [number]” to bring an extra person.