2026 Goals Start Here
Track body composition, not just weight.
Stop juggling 5 apps. Track body fat %, muscle mass, sleep, glucose, and mood in one place—and discover what actually moves the needle.
Free during beta
Your scale is lying to you.
Weight alone doesn't tell the story. You could be gaining muscle and losing fat—and the scale would say you're "failing." Body composition tracking shows what's really happening.
Body Fat %
Track actual fat loss, not just water weight fluctuations. See real progress week over week.
Muscle Mass
Make sure your workouts are building muscle, not just burning you out. Track gains over time.
Sleep + Activity
Connect your Fitbit or Garmin. See how recovery affects your body composition over time.
See what actually works.
Not what you think works. The AI correlation engine finds patterns in your data that you'd never spot manually.
Sleep quality correlates with body fat % loss
Better sleep → better results
Days with 8k+ steps show better sleep quality
Movement matters more than you think
Reaction time drops when dehydrated
Track hydration, see the difference
Automatic Discovery
Just log your data. The AI scans for statistically significant correlations across all your metrics—body composition, sleep, activity, glucose, mood.
You don't need to be a data scientist. BioLogger surfaces the insights that actually matter for your goals.
Connect what you already use.
Sync automatically or log manually. Your choice.
Fitbit
LiveGarmin
LiveLibre
LiveManual Entry
AlwaysImport Blood Tests
Upload PDFs from your lab. AI extracts the values and tracks them over time. See how your biomarkers change with your habits.
Export Everything
Your data is yours. Export to CSV anytime. No vendor lock-in. If you leave, your data comes with you.
Open Beta
Free while I build this.
I'm a solo developer (and new parent) building the health tracking tool I wanted but couldn't find. You get full access for free during beta. When I add pricing later, early users stay free.
Everything Included
Early adopters get grandfathered into free tier forever.
- ✓ Body composition tracking (body fat %, muscle mass)
- ✓ Fitbit, Garmin, Libre integrations
- ✓ AI correlation discovery
- ✓ Blood test PDF import
- ✓ Sleep, mood, hydration, glucose tracking
- ✓ CSV export (your data is yours)
Beta means: things might break, support is just me via the support page, and I'm shipping fast based on user feedback.
What "beta" means
What you get:
- • Full feature access, no paywalls
- • Direct support via built-in contact form
- • Your feedback shapes the roadmap
- • Lifetime free access as thanks
What to expect:
- • Occasional bugs (I fix them fast)
- • UI changes as I improve things
- • One-person support (not 24/7)
- • Features ship weekly
Start your 2026 with data.
Join people building better habits through body composition tracking and correlation discovery.