Your body never lies.
Are you listening?
Fasting tracker · AI food analysis · Weekly insights Not just tracking — a companion that understands you.
Fat burning is kicking in. Your body is learning a new rhythm.
— end fast —Three moments. One companion.
From the hardest hour to your weekly letter — BIOS is there.
Hour 14. The hardest moment.
Not a cold countdown, but a voice that helps you push through. As time passes, BIOS tells you what's happening inside — fat burning, cell repair, every stage has company.
Fat burning is kicking in. Your body is learning a new rhythm. You've already gone further than most.
Snap it, say it, done.
Photo, voice, or text — pick your way. AI identifies food and nutrition instantly. Logging takes seconds, not minutes.
A letter about the you that you don't know
AI writes you a weekly letter — not a data report, but personalized insights from your food and fasting data. Only BIOS can write this letter.
18 meals logged, 5 fasts completed this week. Protein intake is a bit low, but your overall rhythm is improving.
PRICING
Choose your pace
Core features free forever. AI features unlocked on demand.
1000 Credits/mo · Cancel anytime · Price never increases
Local features, no account needed
- ✓Fasting timer
- ✓Manual food logging
- ✓Local data storage
AI companion + smart logging
- ✓Everything in Free
- ✓1000 Credits / month
- ✓AI food analysis (photo / voice)
- ✓AI personalized weekly report
- ✓Cloud sync
Power user + priority
- ✓Everything in BIOS+
- ✓3000 Credits / month
- ✓Priority support
- ✓Early access to new features
Subscription credits reset monthly · Purchased credits never expire · Top up anytime
GET BIOS
Always with you
Web App (PWA)
Add to home screen, use like an app
Visit heybios.com on mobile to install
Native App
Coming soon — get notified