Open Wearables vs ROOK API
Open-Source Alternative
ROOK scores your users' health data without showing its work. Open Wearables gives you the same wearable integrations with open algorithms, self-hosted infrastructure, and no per-user fees.
One platform for wearable data and health intelligence.
MIT-licensed, self-hosted, and free per user. Built and maintained by Momentum, a healthtech software house with 10 years of experience.
Unified API
Connect wearable providers through a single REST API. One integration, all devices.
Open health scores
Sleep, HRV, recovery, VO2 max. Every algorithm published under MIT license and fully customizable.
AI-ready
MCP-compatible interface connects your LLM stack directly to wearable data. No proprietary intermediary.
Self-hosted
Docker Compose or one-click Railway. FastAPI, PostgreSQL, Redis, Celery. Your infra, your data.
Looking for a ROOK alternative? Open Wearables and ROOK both connect wearable data to your application and provide health scoring on top of it. The key difference is transparency. ROOK's scoring logic is proprietary. You get a number, not an explanation. Open Wearables publishes every algorithm. Sleep, HRV, recovery, VO2 max. All open, all auditable, all customizable.
Beyond scoring, the two platforms differ on hosting model, pricing, and data ownership. The comparison below covers what matters most when evaluating both.
Side by side.
| Aspect | ROOK | Open Wearables |
|---|---|---|
| Pricing | Proprietary pricing, per-user model | $0 per user. You pay for your own infrastructure. |
| Hosting | Cloud-only | Self-hosted. Your servers, your data. |
| Source code | Closed source | MIT licensed. Fully open. |
| Health algorithms | Proprietary ROOK Score. No access to logic. | Open: sleep, HRV, recovery, VO2 max. Auditable and customizable. |
| Wearable providers | Selected providers via ROOK SDK | Garmin, Polar, Whoop, Strava, Apple Health, Samsung Health, Google Health Connect, Suunto, Oura |
| Data ownership | Data processed on ROOK's cloud | Full. Data never leaves your infrastructure. |
| GDPR / HIPAA | Dependent on ROOK's DPA | Self-hosted by design. You control compliance. |
| Deployment | SaaS only | Docker Compose or one-click Railway |
| License | Proprietary | MIT |
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Why teams choose Open Wearables as a ROOK alternative.
Open algorithms, not a black box
ROOK Score is a proprietary health score. You cannot see how it is calculated, what inputs it weights, or whether it fits your specific use case. For clinical tools, sports performance platforms, or any product where health outcomes matter, a score you cannot audit is a risk.
Open Wearables publishes every algorithm in the repository. You can read the code, modify the weights, or replace a scoring model entirely. Health intelligence should be explainable.
Self-hosted means you own the data
With ROOK, your users' wearable data is processed on ROOK's cloud before it reaches your application. That introduces a third-party dependency in your data pipeline and compliance obligations that follow from it.
Open Wearables runs on your infrastructure. Your database. No data leaves unless you decide to send it.
No per-user fees at any scale
ROOK charges per user. At small scale that cost is manageable. As your product grows, so does every user in your system. Open Wearables has no per-user fees. You pay for the compute you run, nothing else.
No vendor lock-in
Open Wearables is MIT-licensed. You are not tied to a vendor's roadmap, pricing decisions, or acquisition outcomes. The source code is yours to run, fork, or modify.
Who uses Open Wearables instead of ROOK.
Wellness and consumer health apps
Connect multiple wearables, compute open health scores, and build personalized experiences without paying per user or explaining black-box outputs to your team.
Clinical and digital health platforms
Full data ownership and self-hosted architecture means wearable data never leaves your infrastructure. Designed for environments where GDPR and HIPAA compliance are non-negotiable.
Sports performance and coaching tools
Open algorithms for HRV, recovery, strain, and VO2 max. Customizable scoring that fits your methodology, not a vendor's proprietary model.
Corporate wellness programs
Zero per-user fees at any scale. Connect devices across a large workforce without cost compounding with headcount.
Who is the ROOK alternative for?
Open Wearables
Open Wearables fits teams building health products where algorithm transparency matters, where GDPR or HIPAA compliance requires full data ownership, or where per-user SaaS costs do not scale with the business model. It requires self-hosting on Docker or a managed platform like Railway.
ROOK
ROOK fits teams that want a managed SDK with minimal infrastructure overhead and are comfortable with proprietary scoring and cloud-based data processing.
How to get started.
Open Wearables is open-source and available on GitHub. Deploy via Docker Compose or one-click Railway, then connect to the wearable providers you need.
Each provider (Garmin, Whoop, Oura, Strava and others) requires its own developer credentials, which you obtain directly from the provider. Open Wearables handles authentication, data normalization, and the unified API layer.
The full setup guide is in the docs. For teams that want to talk through the integration first, the Momentum team is available for a demo.
Frequently asked questions.
What wearable providers does Open Wearables support vs ROOK?
Open Wearables integrates with Garmin, Polar, Whoop, Strava, Apple Health, Samsung Health, Google Health Connect, Suunto, and Oura. For the full and current provider list, check the docs.
Can I customize the health scoring algorithms?
Yes. Open Wearables publishes all scoring logic under the MIT license. You can audit, modify, or replace any algorithm. ROOK's scoring is proprietary and not customizable.
Is Open Wearables production-ready?
Open Wearables is at v0.3.0-alpha. Layer 1 (wearable data ingestion) is production-ready. Health scoring (Layer 2) is in active development. Check the GitHub releases for the current status of each component.
What does self-hosting actually require?
Docker Compose for a standard setup, or one-click deploy on Railway. The stack is FastAPI, PostgreSQL, Redis, and Celery. If you can run a containerized backend, you can run Open Wearables.
Who maintains Open Wearables?
Open Wearables is built and maintained by Momentum, a healthtech software house with 10 years of experience. MIT-licensed, backed by a commercial team with long-term skin in the game.
Open Wearables is built and maintained by Momentum, a healthtech software house with 10 years of experience. The platform is MIT-licensed and actively maintained. Momentum offers commercial services on top for teams that need custom integrations, enterprise deployment, or SLA-backed support.
Open algorithms. Zero black boxes.
Deploy Open Wearables on your infrastructure. MIT licensed. $0 per user.
