NuList 
A  Zero-Waste Grocery Planner

The Problem

People who want to reduce food waste often struggle with grocery planning. Common issues include overbuying produce, forgetting pantry items, and choosing packaged foods because planning takes too much effort. Many grocery apps also lack features for bulk shopping, inventory tracking, or waste focused planning.

Problem Statement

People who want to reduce grocery waste lack planning tools that support zero waste habits, leading to food spoilage and unnecessary packaging.

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Research

To understand user behavior, I conducted 12 user interviews, collected 45 survey responses, and completed a competitive analysis of Mealime and AnyList.

Key insights

Many users reported produce spoilage as their biggest source of waste. Bulk sections often felt intimidating because people were unsure how much to buy. While users cared about sustainability, saving time and money was equally important. Many people created grocery lists but forgot to check what they already had at home. Users also preferred guidance that felt helpful rather than guilt driven.

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Personas

Eco Enthusiast Emma (32)
A busy professional who values sustainability but needs tools that work within a hectic routine.

Budget Conscious Ben (28)
New to zero waste habits and motivated by saving money. He needs simple guidance and help with portion planning.

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Ideation

Using How Might We questions and early sketching, I explored several concepts including gamification and store navigation tools. To keep the project realistic, I narrowed the focus to features that support planning before grocery shopping.

Core features

Inventory Check helps users build meal plans around ingredients they already have.
Meal Planner adjusts portions and suggests lower packaging alternatives.
Bulk Shopping Guide provides quantity guidance for bulk bins.
Progress Tracking gives encouraging feedback that reinforces sustainable habits.

Primary Flow

Onboarding - Inventory - Meal Plan - Shopping List - Review

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Design Process

I began with grayscale wireframes to focus on layout and usability before moving into visual design.

Key decisions included using bottom navigation for quick access to Plan, Shop, and Track, simplifying filters in the meal planner, and replacing complex settings with short onboarding quizzes. Accessibility improvements included scalable text and higher contrast.

The visual design uses warm earth tones and friendly icons to create an approachable experience.

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Usability Testing

I tested the interactive prototype with eight users using think aloud tasks.

Users initially found bulk quantity tools confusing, so I added tooltips and examples. Onboarding also felt too long and was reduced from three steps to two. Several users also requested dark mode.

One user noted that the experience felt encouraging rather than judgmental.

 

Final Design Highlights

Smart Swaps suggest bulk or low waste alternatives while users build grocery lists.
Inventory First Planning helps reduce duplicate purchases and forgotten food.
Accessibility features include screen reader support, scalable text, and color blind friendly modes.
The design focuses on core planning tools while leaving room for potential future community features.

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Outcomes

Usability testing produced an average ease of use rating of 4.5 out of 5. Users also reported that the app would help them maintain zero waste habits in their everyday grocery routines.

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Reflection

This project reinforced how important positive reinforcement is for habit building tools. Keeping the feature scope focused also improved usability. Sustainability focused products work best when they encourage progress rather than perfection.

 

Future improvements could include recipe integrations and partnerships with local grocery stores.