The scale lies.Your trend doesn't.
Noise-free Steady Weight. Caloric balance without logging a single meal. All on your device. Forever.
Steady Weight. The math spacecraft use.
The same math used in spacecraft navigation separates your real weight direction from daily fluctuations caused by water, sodium, and digestion.
Steady Weight. The math spacecraft use.
The same math used in spacecraft navigation separates your real weight direction from daily fluctuations caused by water, sodium, and digestion.
Your body already knows how many calories you ate.
Your weight trend reveals your energy balance. No scanning barcodes, no guessing portions, no meal tracking.
Your body already knows how many calories you ate.
Your weight trend reveals your energy balance. No scanning barcodes, no guessing portions, no meal tracking.
Personal Body Clock
Learn your body's daily weight rhythm. Morning vs evening? TrendBody adapts to your personal pattern.
Personal Body Clock
Learn your body's daily weight rhythm. Morning vs evening? TrendBody adapts to your personal pattern.
Focus on Direction, Not Numbers
Direction Mode replaces exact weights with a simple trend arrow — up, steady, or down. Same science-backed tracking, gentler on your mind.
Focus on Direction, Not Numbers
Direction Mode replaces exact weights with a simple trend arrow — up, steady, or down. Same science-backed tracking, gentler on your mind.
Realistic Goal ETA & Equilibrium
See when you'll actually reach your goal — accounting for metabolic adaptation, not just simple calorie math.
Cycle-Aware Trend
Menstrual cycle data helps the trend filter account for hormonal weight fluctuations. Pro feature.
Psychologically Kind by Design
No red numbers. No guilt. Progress framed as behavior, not identity. Advanced metrics hidden until you're ready.
Core tracking is free. Forever.
Everything else. One time. From $6.99.
| Feature | Free | Pro |
|---|---|---|
| Weight logging | Included | Included |
| Steady Weight trend | Included | Included |
| HealthKit sync | Included | Included |
| Daily reminders | Included | Included |
| Energy balance | Not included | Included |
| Goal forecasting | Not included | Included |
| Body Clock | Not included | Included |
| Trend sensitivity | Not included | Included |
| CSV export | Not included | Included |
| Milestones | Not included | Included |
One-time purchase · No subscriptions · Family Sharing included · Price shown in USD, local App Store pricing may vary