Overview
VitaTrack is an iOS fitness and nutrition app that we designed and built as a product. Its centrepiece is the first-run experience: instead of asking a new user to complete a long intake form, it collects baseline health information through a short conversational flow that feels like talking to a coach.
The Challenge
Health apps depend on data about the user, such as goals, habits and body metrics, yet the first moment a person opens the app is when patience is lowest. A page of dropdowns and text fields is the classic point where new users quit. The product needed to gather enough information to personalise itself while making the process light, human and quick, and without asking people to type more than necessary.
Who Uses It and How
A new user might be someone resolving to get fitter, a person managing weight or someone who wants to understand their eating. On first launch they answer a series of questions about their goal, activity level and body metrics, and decide whether to allow access to Apple Health data. The product team reviews how far people get and adjusts questions.
Our Approach
We treated onboarding as a dialogue. Each question appears on its own, in plain language, and the user answers one thing at a time. We borrowed the visual language of voice interaction: a voice-waveform input suggests the user is simply speaking with the app, which reduces the sense of filling in paperwork. A progress bar stays alongside, because knowing the end is near is one of the strongest reasons people finish. We built natively in Swift so the flow feels at home on iOS and can use Apple frameworks directly.
What We Built
The onboarding sequence is a series of short conversational steps, each focused on a single piece of baseline health information with a clear way to respond. The voice-waveform screen responds as the user interacts, and a progress indicator stays visible. When the flow completes, the collected details form the user profile the rest of the app builds on. HealthKit integration lets the app work with health data already held on the device instead of asking users to re-enter it.
Architecture and Data
The app holds the onboarding state locally, so a user who is interrupted can resume without starting over. On completion, it sends the profile to the backend through a REST API, which stores it and returns it when the user signs in on another device. HealthKit access is requested per data type, at the moment it becomes relevant, and the app should work sensibly if the user declines: HealthKit reads can return no data, and the flow should offer manual entry.
Security, Privacy and Quality
Health and fitness data is sensitive personal information. Apple requires apps using HealthKit to explain why they access data and restricts using it for advertising. Depending on where the product is offered, laws such as GDPR, or in some cases HIPAA if the app acts for a covered health provider, may apply. We recommend transport over HTTPS, protected storage of tokens on the device, a plain-language privacy explanation before permissions are requested, and account deletion. Testing covers interrupted flows, permission denial and VoiceOver, since a voice-styled interface must stay accessible.
Technology
Swift and native iOS tooling give us smooth animation, accessibility support and direct access to HealthKit, which is central to any app dealing with fitness and nutrition data. A REST API keeps the client and server cleanly separated so the backend can evolve without forcing constant app changes.
Outcome
VitaTrack gives new users a way into a health app that feels like a conversation rather than a form. The design captures the information the product needs, keeps people oriented with visible progress and connects to Apple Health data.
Frequently asked questions
How much does it cost to build a fitness or nutrition app?
Cost depends on the feature set (tracking, plans, social features), platforms, backend and integrations such as HealthKit, design depth, and the level of data protection needed. Onboarding and profile features are one part of the total. We scope by feature after a discovery call.
Can an iOS app read data from Apple Health?
Yes, through HealthKit, with the user's permission for each type of data. Apps must explain why they need access, and users can change permissions at any time, so the app has to handle missing data gracefully.
Why use conversational onboarding in a health app?
Long forms cause drop-off at the moment a user is least committed. Asking one question at a time in plain language makes setup feel lighter and lets the app collect the same information without overwhelming the user.
Highlights
- Conversational, one-question-at-a-time onboarding
- Voice-waveform input interface
- Progress bar that tracks users through setup
- Apple HealthKit integration for baseline health data
- REST API connection for storing user profiles