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Consistency
over intensity.

JustFit adapts your workout to your real life — sleep, stress, time, travel. No guilt. No nonsense. Just show up.

Start for free → How it works

How it works

Your plan adapts.
Every single day.

Check in takes 30 seconds. The engine reads your inputs and generates a session that fits today — not a perfect day.

⚡
Daily Check-in
Rate your sleep, energy, and stress. Toggle constraints like no gear, traveling, or limited time. The plan adjusts instantly.
🧠
Rule-Based Planner
7 deterministic rules — not AI guesswork. R510 through R516 cover every real-life scenario. Transparent, predictable, fast.
📈
Consistency Score
Your score rewards showing up, not crushing it. Low-effort sessions count. Resilience is a feature, not a bug.
🏆
Awards
Unlock milestones as you build the habit. First session, 7-day streak, resilience badge — every step forward is recognized.

The Engine

7 rules that cover
real life.

Every plan runs through the same transparent ruleset. No black box.

No time
→ Switches to micro session (≤10 min)
Poor sleep
→ Intensity capped at low
Low energy
→ Volume reduced by 40%
High stress
→ Shifts to mobility / recovery
Pain reported
→ Rest session, no loading
No clothing change
→ Stealth mode (standing, quiet)
Traveling / no gear
→ Bodyweight only

Privacy First

Your data stays yours.

Built for EU users. Designed with privacy as a constraint, not an afterthought.

✓
Email stored separately from fitness data
Identity and health data never share the same table.
✓
No tracking, no ads, no third-party analytics
We don't know your device, browser, or location.
✓
No social features or leaderboards
Your progress is for you, not for engagement metrics.
✓
GDPR compliant — EU hosted infrastructure
Cloudflare edge, data stays in region.

Start today. 30 seconds.

No credit card. No subscription required to start. Just sign up and check in.

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