Open Wearables vs Spike API
Open-Source Alternative
Spike processes your users' health data on their infrastructure and charges for the privilege. Open Wearables is self-hosted, open-source, and has 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 Spike API alternative? Spike provides a managed API for wearable data aggregation. It handles the integration layer and stores data on their cloud infrastructure. Open Wearables does the same job differently: the platform is open-source, self-hosted on your own servers, and free per user.
If data ownership, compliance, or cost at scale are factors in your decision, the comparison below covers what you need to know.
Side by side.
| Aspect | Spike | Open Wearables |
|---|---|---|
| Pricing | SaaS 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 | Open algorithms: sleep, HRV, recovery, VO2 max. Auditable and customizable. |
| Wearable providers | Selected providers | Garmin, Polar, Whoop, Strava, Apple Health, Samsung Health, Google Health Connect, Suunto, Oura |
| Data ownership | Data stored on Spike's cloud | Full. Data never leaves your infrastructure. |
| GDPR / HIPAA | Dependent on Spike's DPA | Self-hosted by design. You control compliance. |
| Deployment | SaaS only | Docker Compose or one-click Railway |
| License | Proprietary | MIT |
← scroll to see all →
Why teams choose Open Wearables as a Spike alternative.
Your data should not live on someone else's servers
Spike stores wearable data on their cloud infrastructure. That means a third party holds your users' health data, creating dependencies around compliance, data portability, and what happens if the service changes.
Open Wearables runs on your infrastructure. Your database. Your rules. No third-party data storage.
No per-user fees at any scale
Spike charges per user. Open Wearables has no per-user fees. At small scale the difference is manageable. At 10,000 users, the cost gap is significant.
You pay for compute, nothing else.
Open algorithms, not a proprietary layer
Open Wearables publishes all health scoring algorithms under the MIT license. Sleep, HRV, recovery, strain, VO2 max. Every calculation is in the repository and customizable.
Spike's processing logic is closed.
No vendor lock-in
Open Wearables is MIT-licensed. You run it on your own infrastructure, fork it if needed, and are not dependent on a SaaS vendor's roadmap or pricing decisions.
Who uses Open Wearables instead of Spike.
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 Spike alternative for?
Open Wearables
Open Wearables fits teams that need full data ownership, want open health scoring algorithms, or are building for regulated environments where third-party data processing is a compliance concern. It requires running your own infrastructure via Docker or Railway.
Spike
Spike fits teams that want a fully managed wearable data API with no infrastructure overhead, and where cloud-based data storage and proprietary processing are acceptable.
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 requires its own developer credentials. 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.
Common questions.
Which wearable providers does Open Wearables support?
Garmin, Polar, Whoop, Strava, Apple Health, Samsung Health, Google Health Connect, Suunto, and Oura. Full provider list is in the docs.
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.
What if I need enterprise support or custom integrations?
The core platform is free and open-source. Momentum offers paid services on top: custom integrations, specialized ML models, enterprise deployment with SLA-backed support, and BAA for HIPAA-covered environments. Book a demo to discuss your requirements.
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.
Self-hosted. Open-source. $0 per user.
Deploy Open Wearables on your infrastructure. MIT licensed. Full data ownership.
