HealthiOS, Web10 weeks Sprint Delivered by Zovintra

FitPlan

Flexible Dieting & Nutrition Coaching App

10 weeks

Production Delivery Time

100%

Milestone IP Handover

Zero Debt

Architectural Scalability

About the Project

FitPlan offers a non-restrictive approach to weight management with personalized calorie targets, flexible meal suggestions, and 1:1 nutrition coaching.

Requirements & Objectives

Calculate personalized calorie deficits.
Provide flexible meal plan suggestions.
Enable 1:1 coaching with in-app messaging.
Track food intake, weight, and adherence.

The Engineered Solution

1Goal-Based Calculator

Personalized daily calorie and macro budgets from user metrics.

2Flexible Meal Planner

Suggestions fitting remaining daily budget with swap options.

3Coaching Module

In-app messaging with certified nutrition coaches.

4Progress Tracker

Visual dashboards for weight trends and streaks.

System Architecture & User Flow

Calorie and macro targets are calculated from each member goal, body, and activity level.

Meals stay flexible while still hitting the day numbers, so the plan fits real life.

A coach reviews progress weekly and adjusts the plan, keeping members accountable.

Weight, workouts, and streaks are tracked over time so progress is always visible.

The flexible dieting loop

Set your goal

Calorie and macro target

Plan meals

Fit your daily budget

Track intake

Weight and adherence

Coach check-in

1:1 messaging

Why the flexible approach works

No. FitPlan calculates a personalized calorie and macro budget, and any food fits as long as it stays within that budget.

In-app messaging connects users directly with certified nutrition coaches for accountability and adjustments.

Visual dashboards track weight trends and streaks, which reduced churn versus rigid-plan alternatives.

Engineering Process

Built native iOS app with HealthKit integration.
Developed nutrition calculation engine.
Built in-app messaging for coaching.
Created companion website for program signup.

Production Tech Stack

Layer / Component	Production Technologies
Mobile App	Swift (iOS)
Health Data	HealthKit
Messaging	Real-time chat
Website	Web portal
Architecture	MVVM

Outcome & Business Impact

FitPlan achieved higher retention than rigid-plan alternatives. The flexible approach reduced churn and coaching drove premium conversions.