Oura shows the tag. Corio shows the nights.
You tag your nights — late meal, workout, magnesium, hot room. Oura keeps the list and analyzes almost none of it: custom and repeating tags never get a Discovery. Corio takes every tag, including those, and shows the nights behind it against your own baseline — so you know what moved your HRV and sleep, and what didn't.
Oura says what. Corio says why.
WHAT THE DEVELOPER'S OWN 298 NIGHTS SHOWED
Real numbers from one Oura Ring, computed the same way Corio does it for you — each tag's nights against your own 7-night baseline. No averages from other people.
• Late bedtime → sleep score 84 → 76. Every hour later cost about 5 points and 40 minutes of sleep.
• Late bedtime → HRV: 0%. Same nights, HRV didn't move (31.3 vs 31.7). The drop was sleep duration, not recovery. The score can't tell you that — the tags can.
• One warm night, no AC → HRV 49 → 29, resting heart rate 53 → 59, on a night with 8.7 h of sleep and a sleep score of 91. The score looked fine. The body didn't.
HOW IT WORKS
1. Connect — sign in with Oura. Corio pulls your nights and the tags you already log in the Oura app. They keep arriving even when Corio is closed.
2. Tag as usual — in Oura or in Corio. Late meal, caffeine, workout, travel, illness — anything. Late meals, workouts and late bedtimes are tagged for you automatically.
3. Get the receipt — every morning: what changed, by how much, and the exact nights that prove it. A preliminary read after 3 nights, the full receipt at 5. Share it if you like.
ALSO INSIDE
• Readiness, HRV, resting heart rate, SpO2 and body temperature against your own baseline
• Sleep stages, bedtime rhythm, latency and efficiency; night HRV and heart rate hour by hour
• Stress vs recovery minutes across the day
• Training load with heart rate zones from real per-second data
• Nutrition with photo logging, macros, and food-to-sleep correlations
• A coach that answers from your own week — one thing to do today
• Compare recovery with friends — something your ring app doesn't do
BUILT FOR THE RING YOU ALREADY OWN
Corio syncs your Oura history automatically. Apple Health works too, and WHOOP, Garmin and Polar are supported — but Oura is where Corio is at its best.
FREE AND PREMIUM
Your first tag receipt is free. Premium unlocks every tag, the coach, food photo analysis and deep correlations.
SUBSCRIPTION
Corio Premium is an auto-renewable subscription. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple Account settings.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://marendych.github.io/corio-privacy/privacy.html
Corio is not affiliated with Oura Health. Oura is a trademark of Oura Health Oy.
• Faster start: Corio opens without freezing, even with a long workout history
• Tag effects and night recaps are now calculated in the background
Version 1.0.64
The developer, Yevhenii Marendych, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
Health & Fitness
Location
Contact Info
User Content
Identifiers
Usage Data
Diagnostics
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Yevhenii Marendych
Size
34.9 MB
Category
Health & Fitness
Compatibility
Requires iOS 26.0 or later.
iPhone Requires iOS 26.0 or later.
iPad Requires iPadOS 26.0 or later.
Mac Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
Apple Vision Requires visionOS 26.0 or later.
Location
This app may use your location even when it isn’t open, which can decrease device battery life.