We build custom wellness apps for fitness, mental health, nutrition, sleep, and corporate well-being. Every build is HIPAA-compliant, wearable-ready, and backed by AI personalization your team owns.
HIPAA
ISO 27001
GDPR Ready
SOC 2 Type II
Trusted Software Development Company By
Certifications and Accreditations
From single-focus fitness trackers to multi-modal corporate platforms, we build apps that are clinically informed and consumer-grade.
Goal-based workout planning, activity logging, GPS route tracking, VO2 max estimation, and HealthKit or Google Health Connect sync. Built for consumer apps and B2B employee wellness programs.
Mood journaling, CBT-based self-help tools, guided meditation flows, therapist access modules, and PHQ-9 screening integration. Designed to meet HIPAA and GDPR data sensitivity requirements.
Barcode-scan food logging, macro tracking, AI-generated meal plans, allergen flagging, and integration with nutritionist portals. Supports condition-specific plans including diabetic and renal diets.
Sleep stage analysis via wearable SDKs, sleep diary logging, HRV trend tracking, smart alarm triggers, and relaxation audio libraries. Paired with Fitbit, Oura, and Apple Watch data streams.
Streak visualization, push notification logic, habit stacking frameworks, behavioral insight dashboards, and peer accountability group features. Includes AI coach prompts via LLM integration.
Cycle tracking with symptom correlation, fertility window prediction, perimenopause logging, hormone insight dashboards, and clinical note sharing with OB/GYN integrations.
Multi-tenant B2B architecture, SSO with Okta and Azure AD, HRIS connectors for Workday and ADP, aggregate wellness dashboards with privacy-preserving analytics, and configurable challenge modules.
Diabetes glucose logging, hypertension medication reminders, asthma trigger tracking, care team messaging, and EHR integration via FHIR R4. HIPAA-compliant from the data layer up.
Off-the-shelf platforms give you someone else’s engagement model. Engagement drops when the app can’t adapt to a user’s actual patterns, actual conditions, or actual goals. You end up with generic push notifications, static content libraries, and no pathway for clinical integration.
The harder problem is compliance. Collecting health data without a HIPAA-grade architecture is not a gap, it’s a liability. And in corporate wellness, employee privacy expectations mean aggregate-only analytics is not optional; it’s the baseline.
We build from those constraints, not around them. The AI layer is on-device where it needs to be. The data model is auditable. The user experience is personalized.
Our wellness apps use on-device ML models via TensorFlow Lite and Core ML for real-time pattern recognition. Behavioral data stays on device. Aggregate trends power coaching prompts without routing personal health data through cloud inference.
The architecture supports LLM-driven coaching loops, such as user journeys that adapt week over week based on activity variance, mood trends, and goal completion rates. You own the model. You own the data.
On-Device ML: TensorFlow Lite and Core ML inference runs locally. No personal health data leaves the device for model scoring.
LLM Coaching Loops: Behavioral adaptation via fine-tuned language models. Prompts evolve based on user patterns, not static content trees.
Wearable SDK Integration: Apple HealthKit, Google Health Connect, Fitbit Web API, Garmin Connect IQ, and Oura REST API. Real-time and historical data pipelines.
FHIR R4 Interoperability: Clinical-grade data exchange for apps that integrate with EHRs, care team portals, or payer platforms.
Privacy-Preserving Analytics: Differential privacy and k-anonymity for corporate wellness dashboards. Individual data is never surfaced.
Offline-First Architecture: Full functionality without connectivity. Background sync via WorkManager and BackgroundTasks framework.
Tell us your product concept. We will map the build in a free 30-minute session.
Book a Free Discovery CallEvery engagement produces a complete, production-ready system. Here is what gets delivered.
▪ iOS (Swift/SwiftUI) and Android (Kotlin/Jetpack Compose) native builds
▪ React Native cross-platform where performance requirements allow
▪ HealthKit, Google Health Connect, and third-party wearable SDK integrations
▪ Push notification infrastructure with behavioral trigger logic
▪ In-app AI coaching layer with configurable prompt templates
▪ HIPAA-compliant data storage with AES-256 encryption at rest
▪ Biometric authentication (Face ID, Touch ID, Android Biometric API)
▪ Role-based access controls for multi-user platforms (corporate, clinical)
▪ Admin dashboard for content management, user analytics, and cohort reporting
▪ App Store and Google Play submission support
Whether you are launching a consumer product or a managed B2B platform, the build requirements differ. Here is where we operate.
We map your user personas, product goals, integration requirements, and compliance obligations. You walk away with a defined scope, a data flow diagram, and a feature priority matrix before any code is written.
We define the technical architecture, select the SDK and API stack for your device integrations, and produce HIPAA-reviewed data models alongside UX wireframes. Named senior engineers are assigned at this stage.
Sprint-based delivery with daily updates, weekly demos, and continuous integration on TestFlight and Firebase App Distribution. Wearable integration, AI coaching logic, and compliance controls are built in parallel.
Full regression testing, HIPAA audit trail verification, App Store submission, and L1/L2/L3 SLA support post-launch. Free maintenance period included. Clients also have the option of a money-back guarantee on milestone delivery.
Defined scope, defined budget. Works for well-specified MVPs and feature builds where requirements are locked.
Flexible scope with sprint-based billing. Built for products that evolve through user feedback and market testing.
A named team embedded in your product cycle. Handles ongoing development, iterations, and platform scaling.
Compliance is not added at the end. Every wellness app we deliver is designed around HIPAA-grade data handling, audit logging, and access controls from day one of architecture.
We have shipped integrations across HealthKit, Google Health Connect, Garmin Connect IQ, Fitbit Web API, and Oura. SDK-level work, not surface-layer data pulls.
You know who is building your product before you sign. No switching of resources mid-sprint. The team you meet in discovery is the team that ships your app.
Full source code and IP are transferred at delivery. NDA signed by default. You are never dependent on us to run your own platform after launch.
Every project begins with documented requirements, user stories, and wireframes. We do not write a line of code until the scope is agreed and the architecture is validated.
Verified reviews from digital health and SaaS clients. Our 98% client retention reflects what happens after the first project, not just during it.
Most wellness app builds fall between $10,000 and $150,000 depending on scope, AI features, wearable integrations, and compliance requirements. Share your brief and we will scope it accurately.
Their agile way of working, competence, and friendliness are impressive.December 7, 2024
Citrusbug Technolabs handles a data extraction project for an education company. They're also responsible for managing an AI generation project for the client.
Citrusbug Technolabs has laid out and followed a clear project outline and consistently met deadlines. The team communicates well and demonstrates a strong understanding of the client's vision and goals. Their agile approach, high level of competence, and personable approach stand out.
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Their communication and ability to capture exactly what I was asking for were impressive.November 14, 2024
Citrusbug Technolabs built an automated system for a veteran medical company. The system needed to collect and store user data, generate customized letters based on surveys, and use AI to summarize reviews.
Citrusbug Technolabs delivered a functional automated system that successfully organized the client's records and auto-generated statements. The team was quick to respond, addressed all roadblocks, and communicated effectively. Overall, their ability to understand the client's needs stood out.
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They were very calm and talented, and they did bring some of their own ideas.January 28, 2025
Citrusbug Technolabs has developed an MVP for a freight and capacity marketplace. The team has created three different interfaces for three market segments.
Citrusbug Technolabs has successfully developed an effective MVP. The team has delivered the project on time and almost within budget. Moreover, their responses have been timely. Overall, the team has been calm, talented, and innovative. This has led to the client's satisfaction.
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What stood out most about them was their personalized approach and sense of ownership in every aspect of the project."February 27, 2024
Citrusbug Technolabs built a Flutter cross-platform mobile app for an education company. They also developed two web apps and an admin panel and provided DevOps support for the client's infrastructure.
Citrusbug Technolabs' support successfully boosted the client's user engagement by 8x, resulting in an 85% retention rate. The reliable team demonstrated a dedication to delivering on time and promptly responding to concerns and adjustments. Their personalized, client-centric approach stood out.
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They didn't like the phrase "impossible to do", which made them very solution-oriented.February 19, 2024
A healthcare company hired Citrusbug Technolabs to design and develop a user-friendly application. The team provided tailored assistance to meet the client's requirements.
Citrusbug Technolabs successfully delivered an application that was ready for market. The team was highly professional and well-organized; they stayed focused throughout the engagement and were receptive to changes. Overall, they stood out for their trustworthiness and commitment to excellence.
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They're 100% on time and transparent throughout each stage of the project.February 24, 2024
A financial technology company has hired Citrusbug Technolabs to build a custom web application. The team handles the development and design of the app.
The project is ongoing, but the client has been satisfied with Citrusbug Technolabs' services. The team is very professional — they always respect timelines and provide regular updates to ensure everyone's on the same page. Also, their transparent approach makes them a trustworthy partner.
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"I do believe they are exceptional at where they stand."
Citrusbug Technolabs took on a mobile app development project for a Singapore-based development house. They were provided with UX designs to execute. Currently, they're finalizing and fine-tuning the product.
Citrusbug Technolabs contributed to the successful launch of the product, which has garnered over 10,000 users in just three months. The product has also received support from investors. They consistently followed-up with their progress and delivered at a speedy rate. The team is truly stellar.
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A focused MVP wellness app typically ranges from $10,000 to $50,000. Corporate wellness platforms with SSO, HRIS connectors, and multi-tenant architecture run $50,000 to $150,000 or more. Scope, device integrations, and AI components are the main cost drivers.
An MVP with core tracking, user accounts, and one wearable integration takes 8 to 20 weeks. Full-featured platforms with AI coaching, compliance controls, and admin dashboards typically require 20 to 36 weeks.
We build native iOS (Swift/SwiftUI), native Android (Kotlin/Jetpack Compose), and cross-platform (React Native). Platform selection depends on your performance requirements, wearable SDK compatibility, and audience device mix.
Yes. We have production-level SDK experience with Apple HealthKit, Google Health Connect, Fitbit Web API, Garmin Connect IQ, and Oura. We handle both real-time streaming and historical data sync.
We do. Corporate wellness builds require multi-tenant architecture, SSO with Okta or Azure AD, HRIS connectors for Workday or ADP, and privacy-preserving analytics. These are standard capabilities for us, not exceptions.
We provide L1/L2/L3 SLA support options post-launch. Most clients continue with a retainer for ongoing development, A/B testing, and feature iteration based on user analytics.
