Zestee App Development Case Study | Cross-Platform iOS & Android App

TCU built a cross-platform app for Zestee to launch quickly on both iOS and Android. We designed a smooth user experience with custom meal plans, grocery lists, and recipe guides. The app was developed for speed, scalability, and easy updates. Now Zestee helps users stick to healthy eating anytime, anywhere.

“About App

Zestee is a startup that helps users plan, prep, and stick to healthy eating habits. It offers custom meal plans, grocery lists, and recipe walkthroughs based on user preferences and dietary goals. They needed a cross-platform app that could launch on both iOS and Android — fast.

RecommendedFeatures

Dietary quiz with saved preferences

Grocery list PDF export

Admin dashboard to upload/edit recipes

In-app timers and step-by-step recipe walkthroughs

Weekly goal streak tracker

Push notifications for prep reminders

Growth Goals

Improve user engagement with personalized onboarding.
Increase meal plan completions per week.
Build habit loops with reminders and analytics.

TCU's App Development Approach for Zestee

Discovery & Feature Prioritization

We co-created a product roadmap with the Zestee founders, identifying must-haves for v1 (onboarding, recipes, timers) vs. v2 (habit tracking, macros dashboard). This clarity helped us ship on time without bloat.

UI/UX Wireframes Across Platforms

Using Flutter, we designed wireframes that adapted fluidly to both iOS and Android. Screens included plan selection, meal breakdown, swipeable recipe steps, and a floating action button for quick actions.

Core Feature Development

We built core modules: dietary onboarding quiz, dynamic recipe database, timer feature with sound alerts, and grocery list exports. Users could save favorites and adjust servings easily.

Admin Dashboard & CMS

A secure web dashboard let Zestee staff upload new recipes, tag them by cuisine/diet/goals, and push real-time updates to the app — all without needing to rebuild.

Beta Launch, Testing & Analytics

We ran closed beta testing with early users, added Firebase analytics, and built habit loop data to support future monetization strategies like subscription unlocks and gamified rewards.

PROCESS BREAKDOWN

(Step-by-Step Approach)

Conceptualization

Following deployment, we focused on continuous improvements and incorporated user feedback to refine the product and enhance the overall experience.

Design & Development

Our team crafted a user-centered UI/UX that ensured seamless interaction and intuitive navigation.

Algorithm Integration

We built dynamic modules for personalized fitness and nutrition plans, powered by a flexible rules engine that adapts to user needs and ensures consistency.