Turn scattered health and training data into better decisions.
Ozzie connects Garmin, Strava, Intervals.icu, Withings, and more, then uses AI to stitch your data together, remember your context, explain trends, and show what is most likely affecting recovery, readiness, sleep, habits, and blood markers.
Less guessing. More context. Better daily decisions.
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Sunday · sample data
Illustrative — not your account
Morning vitals
HRV
68 ms
+14% vs baseline
Resting HR
47 bpm
−2 vs avg
Sleep
7h 50m
above target
Body battery
82
recharged
Yesterday strain
14.2
of 21
Sleep score
84
of 100
Why 76?
Recovery attribution
Coach
“HRV is 14% above your 30-day baseline — your best reading this block. Load has been steady and sleep is on target. Good window for intensity today.”
Yesterday's journal
Live dashboard — recovery with attribution, strain (activities + steps), sleep stages, journal patterns, and AI insights in one view.
20+
Wearable platforms
8
Connected data sources
13+
Journal habits tracked
95%
Confidence intervals
What Ozzie actually does
Most apps show you numbers. Ozzie explains what is behind them — with honest confidence levels, not fake precision. The first layer is plain English; the science detail is always one tap away.
Habit effects on recovery
See which habits appear to help or hurt, with training load accounted for. Advanced view includes adjusted effects, confidence intervals, and interaction checks (alcohol × stress, late meal × strain).
Blood biomarker tracking
Upload lab results or snap a photo. Ozzie extracts markers automatically, tracks them against your optimal bands, and shows how your habits and training relate to what's changing over time.
Score attribution
When recovery is 62, Ozzie shows why — prior strain, sleep deficit, habit gaps — each with an estimated contribution. You can inspect the reasoning, not just accept the number.
Fasting & body composition
Track fasting protocols with progressive stages and see how they affect recovery. Body composition synced daily from Withings: weight, body fat, and muscle mass trends over time.
Training calendar & goals
Planned sessions from Intervals.icu alongside what actually happened. Set goals, track progress, and let Coach surface relevant context as your plan evolves.
AI coach with real memory
Daily insights and weekly digests written from your actual data — not generic advice. Coach knows your blood trends, upcoming schedule, training history, and the custom rules you define.
Injury & niggle tracking
Log niggles and injuries with severity and location. Coach factors active injuries into training readiness and flags when load progression looks risky against your history.
Any wearable, one view
Connects Intervals.icu, Strava, Garmin, and Withings — covering Oura, Wahoo, Polar, COROS, Zwift, and 20+ platforms. One intelligence layer regardless of which hardware you use.
Depth where it counts
Built for athletes who want the truth about their physiology — not a clean number that hides the complexity.
| Capability | Typical app | Ozzie |
|---|---|---|
| Recovery score | Number shown | Score + full attribution breakdown |
| Habit tracking | Yes/no logging | Strain-controlled causal analysis + CI bars |
| Interaction effects | Single-variable | Alcohol × stress, late meal × strain, etc. |
| Blood biomarkers | Not integrated | Labs + habit correlation + drift forecast |
| Fasting tracking | Not available | Progressive stages + recovery correlation |
| Body composition | Manual entry | Withings sync — daily weight, fat %, muscle |
| Injury logging | Not available | Niggle log + Coach load flagging |
| Custom alert thresholds | Fixed vendor defaults | Your Rules — define your own triggers |
| AI coaching | Generic tips | Written from your actual time series + memory |
| Device lock-in | Often one ecosystem | Any device via Intervals.icu + Garmin direct |
How Ozzie works
Connect everything
Intervals.icu, Garmin, Strava, Withings, and 20+ platforms — one sync pulls months of history.
Understand what changed
Ozzie stitches data into one timeline, remembers context, and explains what is driving your scores.
Decide what to do next
Daily command centre shows what matters today, why, and what to consider doing next.
Not locked to one wearable
Ozzie is built around open fitness infrastructure. You bring your data; Ozzie brings the analysis layer. No proprietary hardware required.
Intervals.icu
Primary hub — wellness, activities, planned workouts, HR zones, training load
Strava
Ride & run detail, cycling power, GPS routes, activity history
Garmin Connect
HRV, sleep stages, body battery, stress, SpO₂ — direct daily sync
Withings
Body composition — weight, body fat %, muscle mass, daily sync
Oura, Polar, COROS, Wahoo, Zwift…
Via Intervals.icu — 20+ platforms covered automatically
Up and running in 3 steps
- 1Sign in with your email — no credit card required. Free trial gives you full access.
- 2Connect Intervals.icu with your API key. The first sync pulls months of wellness and activity history automatically.
- 3Open Intelligence once to build analytics. Then use Dashboard daily — start journaling for behaviour insights, log blood results as you get them, and let the picture compound over weeks.
Built for the quantified athlete
If you've ever wondered whether that supplement is actually doing anything, why your HRV tanked mid-block, what your blood results mean for training, or whether fasting is helping or hurting your recovery — Ozzie is the tool you've been looking for.
Serious endurance athletes
Cyclists, runners, and triathletes who want load management with actual intelligence behind the numbers — and a training calendar that connects plan to reality.
Health-performance hybrids
Athletes who also track blood work, supplements, fasting protocols, and longevity markers alongside their training — and want to see how they interact.
Quantified-self enthusiasts
People frustrated by black-box recovery scores who want every number explained, every habit quantified, and an AI coach that actually knows their history.
Simple, honest pricing
Start free. Upgrade when you're ready.
Pro
£9.99
/mo
or £89.99/yr — save 25%
- Everything in Free
- AI Coach + weekly digest
- Intelligence analytics + CI bars
- Full habit analysis (13+ signals)
- Blood biomarker tracking + AI analysis
- Score attribution breakdown
- Fasting tracker + recovery correlation
- Injury & niggle log
- Training calendar & goals
- Body composition trends (Withings)
- Your Rules — custom alert thresholds
No credit card required
Ready to understand your physiology?
Free to start. Connect Intervals.icu and your first sync pulls months of history. No hardware lock-in — your data, your analysis.