Skip to content
, home

Case study · Productivity

Gousty logo

Gousty, know what to buy and what to eat

An app that starts from your goal and budget to tell you what to buy and what to eat this week, with its API, back office and website.

  • Android
  • API
  • Back office
  • Website
gousty.app website ↗

Screens from the app

Weekly plan and shopping to do
Recipe page with macros and cost

Leveling up with Gousty

  1. The starting point

    Gousty's promise: tell me your goal and your budget, and I'll tell you what to buy and what to eat. The project covered the app, the server, the back office and the pre-launch website.

  2. The challenge

    Keep nutrition and price calculations consistent across platforms: all the business logic lives on the server, described in a single contract whose models are generated for each app.

  3. Challenge met

    Users get their week of meals, a priced shopping list and video recipes, and can adjust everything in a single sentence.

Built from A to Z

  • Budget-based meal plan
  • Shopping list
  • Video recipes
  • AI adjustments
  • Goal tracking
  1. 01

    Native Android app: goal and budget, daily and weekly views, video recipes, shopping list and tracking.

  2. 02

    Versioned API with nutrition, planner, shopping, pricing, profile and subscription modules.

  3. 03

    Adjust the week in one sentence: AI turns the request into levers the engine applies.

  4. 04

    Health Connect and an interface in French, English and Spanish.

  5. 05

    Back office (videos, catalog, prices) and a showcase website with a waitlist.

Project timeline

  1. Level 01

    Scoping

    One promise: a goal and a budget in, a week of meals and a shopping list out.

  2. Level 02

    API contract

    All the business logic (nutrition, planning, shopping, pricing) described in a single contract, before building any screens.

  3. Level 03

    Development

    Native Android app, versioned API, one-sentence week adjustments powered by AI, Health Connect.

  4. Level 04

    Pre-launch

    Back office for videos, catalog and prices, and a showcase website with a waitlist.

Project specs

Stack
KotlinJetpack ComposeTypeScriptFastifySupabaseOpenAPINext.js
Deliverables

Mobile app

API

Back office

Website

Expertise involved
Mobile app development ↗Website design ↗Productivity sector ↗

More case studies

All our work ↗Estimate my project ↗

Ready to unlock your cheat code?

An idea to launch, a website to rethink, an app to build or a brand to evolve?

Talk about my project