AI PERSONAL TRAINER
The AI personal trainer that never sleeps.
Liffix builds your workout, checks your squat depth on camera, and rebuilds your plan every Sunday from your real performance — for less than your protein powder.
Adaptive plan
Rebuilt every week from your last workouts, soreness, and recovery.
Real-time form check
Phone camera spots bad squat depth, locked knees, and rounded backs.
Smart progression
AI predicts plateaus and changes load before you stall.
Goal-aware
Cut, bulk, recomp, mobility — pick a goal, the trainer follows.
AI personal trainer vs. human trainer
| Liffix AI | Human PT | |
|---|---|---|
| Cost / month | $19 | $640+ |
| Form check at home | ✓ | ✗ |
| Adapts in real time | ✓ | Weekly |
| Available 24/7 | ✓ | Booked |
| Tracks meals + recovery | ✓ | ✗ |
FAQ
How does an AI personal trainer work?
Liffix's AI builds your workout from your goals, equipment, and fitness level, then watches your form through your phone camera and adjusts the plan every week.
Is the AI trainer free?
Yes — start free for 7 days. After that, Pro is $19/month and you can cancel in one tap.
Can I use it at home?
Yes. Liffix builds bodyweight, dumbbell, or full-gym plans.