UX Research · User Research Case Study

Sustainable
Eating
App Research

A dual-audience research study exploring the viability of a food waste reduction app in Dublin — combining quantitative surveys, focus groups, literature review, and market analysis to define product opportunities and user needs.

RoleUX Researcher
MethodsSurveys · Focus Group · Literature Review
Participants112 total (84 customers · 28 business owners)
82%
of customers would use the app
89%
of restaurant owners willing to join
70%
motivated by reducing food waste
9
focus group participants, online via Zoom

Understanding both sides
of a two-sided marketplace

Nearly one-third of all food produced globally is wasted each year. This research project set out to explore whether a food-rescue app — connecting restaurants with surplus end-of-day food to local consumers at a discount — was both desirable and viable in the Dublin market. The research intentionally addressed two separate stakeholder groups: customers and business owners, recognising that both needed to be convinced for the product to succeed.

The Problem

Food waste is a major environmental and social issue. Restaurants discard substantial quantities of quality food at the end of each day, while a significant portion of the population cannot regularly afford takeaway food.

The Opportunity

A marketplace app connecting restaurants with surplus food to cost-conscious and environmentally motivated consumers — reducing waste, expanding access to quality food, and building a sustainable business model.

The Research Question

Would both restaurant owners and customers be willing to participate in such a platform? What features, pricing structures, and trust mechanisms would be essential for adoption?

A multi-method approach
to a dual-audience problem

The research combined quantitative and qualitative methods, chosen deliberately to complement each other. Surveys captured breadth and statistical confidence; the focus group provided depth, nuance, and unexpected insights that numbers alone could not reveal.

📋

Quantitative Survey — Customers

An anonymous Google Forms survey distributed to restaurant and takeaway customers across Dublin, capturing attitudes toward food waste, app adoption intent, pricing expectations, and desired features.

84 responses
🏪

Quantitative Survey — Business Owners

A parallel survey targeting restaurant and takeaway owners, exploring willingness to join a discount food network, acceptable discount thresholds, and concerns about brand and quality perception.

28 responses
💬

Qualitative Focus Group

A structured online focus group (Zoom) with 9 participants exploring the concept in depth — product feasibility, potential challenges, marketing approaches, and fundraising strategies.

9 participants · Zoom

Research design note

The decision to run two separate surveys — rather than a single combined instrument — was deliberate. Restaurant owners and customers have fundamentally different relationships with the product, different risk perceptions, and different success criteria. Conflating them into one survey would have obscured the distinct patterns that emerged from each group. This dual-audience design is a core strength of the research.

What the numbers revealed

Both surveys produced strong, consistent signals. The data below represents the most strategically significant findings from each stakeholder group.

Would you use the app?
Customer survey · 84 responses
82% Yes
Yes — 82.1%
No — 9.5%
Maybe — 8.3%
Would you join the restaurant network?
Business owners survey · 28 responses
89% Yes
Yes — 89.3%
Maybe — 10.7%
No — 0%
Which features would you value most in the app?
Customer survey · 84 responses · multiple choice
Search by km/miles radius
66.7%
Search for different cuisines
56%
Delivery options
52.4%
Acknowledging different diets
47.6%
Search by time range
44%
What would make you order more often?
Customer survey · 84 responses
Reducing food waste
70.2%
Less packaging waste
56%
Lower price
52.4%
Discover local food offers
19%
Discount rate consensus
Customers vs business owners — a rare alignment
Customers
20–30% discount
63.1%
40–60% discount
36.9%
Business Owners
20–30% discount
67.9%
40–60% discount
25%
"
The project was welcomed with general enthusiasm. Stakeholders were happy to reduce the environmental impact of their food production and consumption, as well as benefiting from exposure to a broader audience.

Focus Group Summary · 9 Participants

What the research
actually told us

82%

Customer demand is strong

The vast majority of customers expressed willingness to use the app, with environmental motivation outweighing price sensitivity as the primary driver.

89%

Supply-side viability confirmed

Restaurant owners showed overwhelming openness to joining the network — critically, zero respondents said no. This removes the most significant supply-side risk for the product.

63%

Pricing consensus exists

Both customers and owners independently converged on the 20–30% discount range as acceptable — an unusual and valuable alignment that de-risks the core business model.

Customer Insights

Environmental motivation is the strongest driver — 70.2% said reducing food waste would increase their ordering frequency, above price (52.4%).

Location-based search (66.7%) and cuisine filtering (56%) are the highest-priority features, suggesting discovery and relevance matter more than loyalty mechanics.

90.4% would bring their own container for an additional discount — confirming strong sustainability intent beyond the core transaction.

91.7% would donate €1 per order to enable charities to access the service free — an unusual finding that opens an additional social impact layer.

Dietary needs are a significant consideration — 21.4% are vegetarian/vegan, and dietary filtering ranked as the top desired feature.

Business Owner Insights

Zero business owners said no to joining the network — even the 10.7% "maybe" responses represent an opportunity for further engagement rather than active resistance.

67.9% of owners prefer the 20–30% discount range, matching customer expectations exactly and creating a natural pricing equilibrium.

64.3% would offer extra discounts for customers bringing their own containers — showing genuine alignment with sustainability values beyond commercial interest.

78.6% would contribute to a charity access model — mirroring customer willingness and suggesting a platform-level social impact feature could succeed.

53.6% have 2–5 years of industry experience, suggesting an engaged, established operator base rather than newer, more risk-averse entrants.

Two stakeholders,
one ecosystem

The research was designed with a two-sided marketplace in mind — both groups must find value for the product to work. The data confirmed this alignment exists, which is a strong validation signal for the product concept.

Customers · 84 respondents

What customers need

Primary motivationReducing food waste
Preferred discount20–30%
Top featureLocation search (km radius)
Would bring own container90.4%
Would donate €1 to charity access91.7%
Main age bracket27–35 years (28.6%)
Business Owners · 28 respondents

What owners need

Willingness to join89.3% yes · 0% no
Preferred discount to offer20–30%
Would offer container discount64.3%
Would donate to charity model78.6%
Urban location89.3%
Established operators (2–5yr)53.6%

What this research
demonstrated

Methods applied

Quantitative survey design Dual-audience research Focus group facilitation Literature review Market analysis Stakeholder mapping Data synthesis Business model research Ethical analysis Google Forms Zoom research facilitation

The most significant finding of this research was not any single data point but rather the alignment between the two stakeholder groups. Customers and business owners independently arrived at the same acceptable discount range (20–30%), both expressed willingness to support a charity access model, and both showed genuine sustainability motivation beyond transactional self-interest. This convergence is rare and represents a strong product-market signal.

The decision to survey both sides of the marketplace separately — rather than relying on one group to represent the other — was the most important methodological choice. It revealed that the product was not simply desirable to customers but actively welcomed by the businesses that would need to supply it. Without this dual-audience design, that critical insight would have been invisible.

The focus group added qualitative texture that the surveys could not capture: enthusiasm, spontaneous feature suggestions (loyalty cards, rating systems), and realistic challenges around logistics and food quality standards. Together, the methods produced a layered picture of both the opportunity and the conditions needed for success.

If this research were extended, the natural next step would be competitive analysis against existing solutions (Too Good To Go entered the Irish market subsequently), followed by persona development and user journey mapping to translate research findings into design decisions.