Nine health modules. Cross-domain correlation between your labs and your daily behaviors. On-device AI that never uploads a byte — because your health data stays on the hardware you already own.
Sleep88%
Recovery76%
Activity92%Sleep in one app, HRV in another, labs in a PDF you emailed yourself, workouts in a third. None of them talk to each other, and none of them know the whole picture.
Your sleep affects your HRV. Your fasting window affects your glucose. Your cold exposure affects your mood. The pattern is there — you just have no way to measure it across domains.
Every tracker you've tried uploads everything to a cloud you don't control, monetizes the aggregate, and can change its terms whenever it wants. This is the deal nobody agreed to.
IndexedDB by default. Sync is opt-in, not opt-out. There is no server-side copy of your health history that we could lose, leak, or sell — because there isn't one.
Gemma via WebGPU, running inside the tab. Ask it about your labs, your trends, your stack. It reads your data, answers, and forgets — no API call, no round trip, no third party.
Sleep ↔ HRV. Fasting ↔ glucose. Cold exposure ↔ mood. Sunlight ↔ sleep latency. Real r-values with sample sizes, not vibes with confidence.
You've been tracking for years. You know what HRV means. You want to correlate it against everything else without duct-taping six exports into a spreadsheet.
You just got a lab result you don't understand, or a diagnosis you need to make sense of. WaterBear turns the numbers into something you can act on.
You'll try red light, HBOT, cold plunges, and telomere tracking before your doctor has heard of them. You want tooling that keeps up — and doesn't send your biometrics to a cloud.
All nine modules are free forever. Pro unlocks the labs, the AI, and the cross-domain engine — the parts that actually tell you what your data means.
We're rolling out Pro in waves. Drop your email and we'll send your access link plus a 7-day free trial — no card required.
Running a clinic, school, or training program? Check the practitioner box and we'll follow up separately.
Your access link is on its way. If you checked the practitioner box, we'll follow up separately within two business days.
The point of tracking isn't the tracking. It's the patterns you can act on — and the ability to prove what's working to the person whose opinion matters.
IndexedDB local storage by default. No analytics, no trackers, no third-party scripts. Optional Supabase sync if you want it — off until you turn it on.
Semantic HTML, ARIA where it counts, focus-visible states, and reduced-motion support that goes further than disabling animations — it disables the effects engine entirely.
Add to home screen on iOS, Android, desktop. Works with no network. Loads in under a second on a mid-range phone. No app store gatekeeping.
WaterBear is a PWA. Open it, install it, and your data starts living on your device — not anyone else's.
