Add custom health scores to your app, designed by health scientists.
Raw wearable data doesn't retain users. A score that tells them something actionable does. We design and implement custom health scoring layers: built on open algorithms, tuned for your user population, delivered on your infrastructure.
Built Health Products for
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Health scores built for your users, not for everyone.
We design scoring algorithms based on your user population: their activity profiles, health goals, and data sources. Then we implement and deliver them on your infrastructure.
Sleep score
Not just hours slept. Quality based on HRV, sleep stages, and resting heart rate - weighted against the user's individual baseline, not population averages. Tells users whether last night actually restored them.
Recovery score
Overnight recovery measured against the user's own baseline. Based on HRV trend, resting HR, and recent strain accumulation. Tells users whether today is a full-effort or rest day before they make the wrong call.
Strain score
Cumulative cardiovascular load across training and daily activity. Calibrated to individual capacity so a hard day for one user isn't the same as a hard day for another. Tracks whether load is building sustainably or spiking toward injury.
Resilience score
How well the body adapts to accumulated stress over time. Combines sleep quality, recovery trend, and HRV baseline to give users a longer-horizon view of their health trajectory.
Readiness score
A single daily signal that tells users whether today is a day to push or a day to recover. Combines sleep quality, overnight recovery, and accumulated strain into one actionable number.
Custom scores
Your product may need something we haven't listed. Readiness score for clinical populations. Metabolic load for weight management platforms. Cognitive recovery for performance products. We scope it in discovery.
BUILT ON OPEN SOURCE
We built the health scoring layer in Open Wearables.
Open Wearables is an open-source wearable data platform we built and maintain. The health scoring algorithms inside it were designed by our in-house health scientist and implemented by our engineering team. Not licensed from a third party. Not a black box. When you work with us on custom scores, you work with the team that wrote the original algorithms.
Healthcare products built by our team
Medication Management App That Improved Adherence by 38% Among Senior Patients
Flutter medication management app built for Egis Pharmaceutical. Automated reminders handling complex dosing schedules, senior-friendly interface with 94% ease-of-use rating, offline-first architecture, and monthly reporting for healthcare providers. Cross-platform delivery on iOS and Android.
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Cross-Generational Caregiving Platform That Simplified Health Coordination for Families
We partnered with Caily to build a cross-generational caregiving platform from the ground up, combining healthcare-grade security with family-friendly UX. Together, we delivered a subscription-based, cross-platform product integrated with EHR systems.
From Days to Minutes: How We Helped LabPlus Digitize Medical Testing
We approached Caily as more than a development project. This was about understanding the emotional dynamics of family caregiving and translating them into technology that actually works.
Fitness-to-Insurance Rewards App With Multi-Device Wearables Integration
Momentum joined forces with Steppie to create a groundbreaking mobile app that transforms physical activity into insurance rewards. This innovative solution not only encourages users to lead healthier lives but also promotes sustainable insurance practices, creating a win-win situation for both individuals and insurance providers.
Scores that drive retention.
Users come back for the score
A number that changes daily and explains why creates a habit loop. Users return to see if they improved, recovered, or need rest. That's retention built into the product, not bolted on.
Data stays on your infrastructure
No third-party scoring API. No user data leaving your environment. Self-hosted means full data sovereignty: essential for HIPAA-eligible products and enterprise health platforms.
No black box
Every algorithm is open and auditable. Every threshold is documented and explainable. When a user asks why their recovery score dropped, you can answer. When a compliance team asks how scores are calculated, you have the methodology.
Designed by a health scientist, not just engineers
Anna Zych, PhD, our in-house health scientist, leads algorithm design. Scoring methodology grounded in published research, validated against real wearable data. Not a product decision dressed up as a clinical one.
From clinical question to precise answer in seconds
From discovery to delivery
Discovery and architecture
We map your user population, data sources, and product goals. What devices do your users have? What behavior are you trying to drive? What does a good day look like for your user? One call, one week turnaround on scope.
Discovery and architecture
We map your user population, data sources, and product goals. What devices do your users have? What behavior are you trying to drive? What does a good day look like for your user? One call, one week turnaround on scope.
Scoping
We propose the scoring architecture: which metrics, which algorithms, how scores surface in your product. You get a technical spec and a delivery timeline before anything is built.
Scoping
We propose the scoring architecture: which metrics, which algorithms, how scores surface in your product. You get a technical spec and a delivery timeline before anything is built.
Development and integration
Algorithms implemented and deployed on your infrastructure. API endpoints, documentation, and a dashboard view included.
Development and integration
Algorithms implemented and deployed on your infrastructure. API endpoints, documentation, and a dashboard view included.
Compliance and QA
Every score ships with documented methodology and auditable thresholds. Ready for security questionnaires and compliance review.
Compliance and QA
Every score ships with documented methodology and auditable thresholds. Ready for security questionnaires and compliance review.
Launch and support
We stay available for tuning in the first 30 days post-launch. Your team gets handover documentation and direct access to the engineers who built it.
Launch and support
We stay available for tuning in the first 30 days post-launch. Your team gets handover documentation and direct access to the engineers who built it.
Our Solutions
Built on Tools We Created
The health products we build run on open source infrastructure we maintain. Open Wearables is the wearable data platform we built from scratch, including the health scoring algorithms inside it. Not third-party dependencies. Tools our team built, running in production across our clients' platforms.
Open Wearables
Unified Health API for multi-vendor wearables data integration. Build personal health insights applications without vendor lock-in.
FHIR MCP Server
Natural language AI interface for FHIR servers - query clinical data using conversational prompts instead of complex FHIR queries.
HealthStack
Terraform modules for HIPAA-compliant cloud infrastructure - production-ready AI software for healthcare architecture.
Apple Health MCP Server
AI agents that understand Apple Health data through conversational queries - enabling personal health recommendations.
Notetaker (AI Scribe)
AI-powered medical documentation and clinical note generation - automated transcription with structured FHIR output.
FHIRBoard
Interactive analytics and visualization for FHIR healthcare datasets - transform clinical data into actionable health insights.
"They took our team 'zero to hero' in healthcare development."
"Their user-centered approach and technical expertise resulted in extraordinary retention rates even among our elderly users."
aligning their solutions with our vision."
"We think they are great developers and we learned a lot from them."
"Having Momentum gives us the ability to move so much faster than we could without them."
Let's design your health scores.
Tell us about your project and we'll get back to you within one business day.
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Healthcare Web Application Development FAQ
What is a custom health score?
A health score is a single number computed from raw wearable data that tells a user something actionable: how well they slept, whether they're recovered, how much strain they've accumulated. Custom means the algorithm is designed for your user population, not generic thresholds built for everyone.
How is this different from scores built into wearable devices?
Device scores are black boxes. You can't read the methodology, adjust the thresholds, or explain to a user or compliance team how the number was calculated. Our scores are open, auditable, and explainable - and they work consistently across any device your users have.
Where does the data go?
Nowhere it shouldn't. Scores are computed on your infrastructure. No user data leaves your environment. This is essential for HIPAA-eligible products and enterprise platforms with data sovereignty requirements.
Do we need Open Wearables to use custom health scores?
No. We can deliver custom scoring algorithms on top of your existing data pipeline. Open Wearables makes it faster, but it's not a requirement.
Do you integrate mobile apps with wearables and health devices?
We connect mobile health apps to data from Apple Health, Garmin, Oura, Whoop, and more. Through our Open Wearables platform, you integrate once and access normalized health data across all supported devices instead of building separate integrations for each vendor.
What if we need a score that isn't on your list?
That's what the discovery call is for. We've built scoring logic for clinical populations, weight management platforms, and performance products. If you have a specific health behavior you want to drive, we'll scope an algorithm for it.
