Add custom health scores to your app, designed by health scientists.
Raw wearable data doesn't retain users. A daily score that explains itself does. Custom scoring algorithms designed by scientists, deployed on your infrastructure, live in 4-6 weeks. The result: an app users open every morning and a daily habit loop your competitors can't copy.
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The feature that brings users back,
every single day.
The score is why they open the app tomorrow
Imagine your users opening the app first thing every morning – not to log anything, but to check their score. The score changed overnight. They need to know why. That's the habit loop you've been trying to build.
Deployed on your infrastructure
The scoring algorithms run on your servers. No external API calls, no data routed through our systems, no third-party dependencies in your production stack. You own the compute, you own the pipeline, you own the data - from raw wearable input to the score your users see.
Every threshold documented, every score explainable
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.
Health scores built for your users, not for everyone.
Your users aren't average. Their scores shouldn't be either. We design algorithms around their actual activity profiles, health goals, and data sources – then deploy everything 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.
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Health scoring designed by a scientist, not just engineers.
Most health scoring in consumer apps is engineers guessing what HRV means. Ours isn't. Anna Zych (PhD, exercise physiology) leads every scoring methodology we ship.
When your compliance team asks how the scores work, the answer holds up. When your users ask, the answer makes sense. When a partner or investor asks about your retention strategy, you have something to point at.
Your app. Before and after custom health scores.
- ✕Users see raw numbers. No context, no action.
- ✕Session opens. Nothing to do. Session closes.
- ✕Your app does what 50 others do – tracks. None of them retain.
- ✕Users don't know if today is a push day or a rest day. They guess wrong.
- ✕D7 retention under 20%. Investors keep asking why.
- ✕CAC keeps rising. LTV stays flat. The math stops working.
- ✕Garmin user, Apple Health app. Score: unavailable.
- ✕Third-party scoring API holds your users' health data. You don't.
- ✓One number. Tells them exactly what today means.
- ✓Score changed overnight. They need to know why. They come back.
- ✓Daily score creates a daily habit loop. No push notifications needed.
- ✓A reason to open the app tomorrow that isn't a discount or a nudge.
- ✓Higher D7 retention. The metric your investors actually ask about.
- ✓Score explains itself. Every day. In plain language.
- ✓Any device. One consistent scoring layer.
- ✓Algorithms on your infrastructure. Your users' data never leaves your environment.
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.
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 - your servers, your environment, zero external dependencies. 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.
Built for your users. Not for everyone.
Tell us about your product and who uses it. We'll design a scoring architecture tuned to their activity profiles, health goals, and data sources – not generic thresholds built for a million-user average.
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Custom health scores 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 - not sent to a third-party API, not processed externally. No user data leaves your environment.
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.
