Oura is the best passive sleep tracker most people can buy. Its readiness and sleep scores are genuinely useful - and genuinely limited, because a ring can't see your nutrition, your ferritin trend, or the fact you started creatine three weeks ago. Cuilvor sits above: it takes Oura's numbers (or your own words), your meals, your supplements and your lab results, and turns the whole picture into one short weekly review with at most two changes.
| Cuilvor | Oura | |
|---|---|---|
| What it is | AI coach across all your health data | Smart ring + sleep/readiness app |
| Hardware required | None - ring optional | Oura ring (~£300 + subscription) |
| Sleep staging & readiness | ◐ Via your ring or manual log | ✓ Excellent, automatic |
| Food & macros | ✓ One sentence, parsed with UK brand accuracy | ✗ Not meaningful |
| Blood work | ✓ Any lab PDF/screenshot, trended | ✗ Not supported |
| Compounds (meds/supplements/TRT/peptides) | ✓ Dose, route, cycle - correlated with bloods | ✗ Tags at best |
| Coaching output | ✓ Weekly written review, 1-2 concrete changes | ◐ Scores + generic advice cards |
| Data ownership | ✓ Your database, export anytime | ◐ Oura cloud |
Yes - Oura's API can feed Cuilvor's database, and until then you can log sleep in plain words. Cuilvor is designed to read wearables, not replace them.
Oura's guidance only sees ring data. Cuilvor cross-references sleep with food, training, supplements and blood biomarkers - so it can say 'your ferritin trend explains the fatigue, see your GP' rather than 'try going to bed earlier'.
No hardware. You bring your own AI key (Anthropic or OpenAI) so the intelligence runs on your account at cost price.
Each account's rows are isolated at the database level; AI keys are encrypted at rest; nothing is sold or shared. It's your record.
Your data is already telling the story. Cuilvor reads it.
Join the waitlist